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Fixed 4G Wireless Gas Detector HRP-T1000-H
Fixed 4G Wireless Gas Detector HRP-T1000-H
Fixed 4G Wireless Gas Detector HRP-T1000-H
Fixed 4G Wireless Gas Detector HRP-T1000-H
Fixed 4G Wireless Gas Detector HRP-T1000-H
Fixed 4G Wireless Gas Detector HRP-T1000-H

Fixed 4G Wireless Gas Detector HRP-T1000-H

The HRP-T1000-H is an intelligent industrial-grade gas monitoring device equipped with a 4G wireless module. It is specifically designed for scenarios where wiring is impossible, remote single-point locations, and mobile operations are required. It enables real-time wireless transmission of gas concentration and remote unattended monitoring. It is suitable for use in remote natural gas pipelines, oil well sites, mobile construction sites, temporary work sites, sewage treatment plants, landfills, and other similar locations.

  • SIL 2 Certification
  • CE Certification
  • Ex Certification
  • PA Certification
  • FC Certification
  • High precision

  • Global Shipping

  • Customized

  • 24*7 support

  • OEM/ODM

  • Features
  • Parameters
  • Accessories
  • Gases and Ranges

The device requires no self-built communication network (such as LoRa gateways or wired LANs), only device installation and a 4G SIM card. Deployment time for a single device is ≤10 minutes, significantly reducing construction costs and shortening the construction cycle compared to wired solutions.

The 4G gas detector supports mainstream industrial communication protocols such as MODBUS, MQTT, and TCP/IP, seamlessly integrating with existing enterprise SCADA, DCS, and safety management platforms without requiring system rebuilds, reducing system integration costs. It supports large-scale networking, managing thousands of 4G detectors simultaneously with no limit on the number of network nodes, making it suitable for centralized monitoring in large enterprises and cross-regional projects.

Meanwhile, the cloud platform provides open API interfaces, allowing for customized development of functions to meet individual management needs.

1.Independent shielding design, stronger anti-interference ability
Socket module usually has an independent metal shield or isolation cavity. This design physically and electromagnetically isolates the sensor circuit from the main board of the host computer, effectively preventing the electromagnetic interference generated by devices such as frequency converters and high-power motors, and ensuring that the data is still stable and reliable in the complex 2.industrial electromagnetic environment.
Reserved expansion interface, upgrade without changing the machine.
Many hosts with sockets are designed with redundant slots. This means that if it is necessary to increase the types of detection gases in the future (for example, upgrading from detecting a single combustible gas to detecting combustible gas+oxygen+hydrogen sulfide), it is only necessary to add corresponding modules to the idle slots without replacing the whole detector host, thus protecting the initial investment.
3.Isolated gas path design to prevent cross contamination.
Modular design usually cooperates with independent air inlet cavity, and sensors of different gases have independent diffusion channels. This can effectively prevent the chemical reaction or cross interference of different gases in the detection room (such as the impact of high concentration combustible gas on the toxic gas sensor), prolong the service life of the sensor and improve the detection accuracy.
4.High-grade isolation protection, adapt to bad weather.
The joint of socket usually adopts special potting process or waterproof sealing ring, which realizes the complete isolation of sensor module from the external environment. This makes the equipment not only dustproof and waterproof (reaching IP66/IP67 grade), but also effectively resistant to salt spray corrosion, especially suitable for highly corrosive environments such as seaside platforms and chemical plants.
5.Standardized production, high quality consistency
Compared with the complicated welding wiring in traditional equipment, the socket module is produced by standardized assembly line. Each module has undergone independent rigorous testing and aging screening before leaving the factory. This standardized manufacturing method ensures that the performance of each equipment is highly consistent and reduces the failure rate of equipment caused by uneven manual welding quality.

  • Fixed-4G-Wireless-Gas-Detector-HRP-T1000-H-side-view

HRP-T1000-H 4G Wireless Fixed Gas Detector

Intelligent industrial gas monitoring solution based on 4G wireless communication

HRP-T1000-H is an industrial-grade intelligent fixed gas detector integrated with a 4G wireless communication module, which can realize real-time gas concentration detection, remote data transmission and centralized management in the cloud. The equipment supports monitoring the concentration of combustible gas, toxic and harmful gas and oxygen, and is suitable for large-scale industrial scenes that are difficult to be covered by traditional wired networks or widely distributed.

Relying on the 4G cellular communication network, HRP-T1000-H can realize long-distance data transmission without complicated wiring, which helps enterprises to quickly build an intelligent and digital industrial gas safety monitoring system and improve safety management efficiency and accident early warning ability.


What is a 4G wireless fixed gas detector?

4G wireless fixed gas detector is an industrial safety monitoring device that transmits data through mobile communication networks. Compared with the traditional 4-20mA or RS485 wired connection mode, the device can directly upload the monitoring data to the cloud platform, monitoring center or mobile terminal through the 4G network to realize remote real-time management.

HRP-T1000-H supports multi-point distributed deployment and is especially suitable for application environments such as pipelines, storage tanks, industrial parks, mining areas and remote areas where wiring is inconvenient.

Through intelligent networking technology, enterprise managers can check the gas status at any time and anywhere, and realize all-weather safety supervision.


Principle of operation

According to different application requirements, HRP-T1000-H can be equipped with electrochemical, catalytic combustion, infrared or oxygen sensors to realize accurate detection of various industrial gases.

Detection process

  • Ambient air continuously enters the sensor detection area;
  • Gas molecules react with the corresponding sensor;
  • The sensor converts the concentration change into an electrical signal;
  • The built-in microprocessor analyzes and processes the signal;
  • The system generates real-time gas concentration data;
  • The data is displayed on the local display screen in real time;
  • Data is uploaded to the cloud platform or monitoring system through the 4G wireless module;
  • When the concentration exceeds the alarm threshold, the equipment automatically starts the acousto-optic alarm and sends the remote alarm information synchronously.

The whole monitoring process realizes synchronous operation of local detection, wireless transmission and remote management, providing all-weather security for industrial sites.


Product features and advantages

4G wireless remote communication

Built-in industrial-grade 4G communication module can realize long-distance data transmission without field wiring.

Support:

  • Cloud platform access
  • View mobile APP
  • Web monitoring system management
  • Remote alarm push

Effectively reduce the construction difficulty and construction cost.


Ready-to-use, rapid deployment

The equipment adopts an integrated structural design and can be put into operation only by completing installation and power supply, without complicated network wiring and communication debugging.

Especially suitable for:

  • New projects
  • Temporary monitoring points
  • Emergency safety monitoring
  • Distributed industrial scenes

Real-time online monitoring

Support 24-hour continuous online operation, grasp the change of gas concentration on site in real time, find hidden leakage hazards in time, and improve safety management efficiency.


Multi-gas detection capability

Can be detected according to requirements:

  • Combustible gas (LEL)
  • Methane (CH₄)
  • Hydrogen (H₂)
  • Carbon monoxide (CO)
  • Hydrogen sulfide (H₂S)
  • Oxygen (O₂)
  • Ammonia (NH₃)
  • Chlorine (Cl₂)
  • Sulfur dioxide (SO₂)
  • VOC and other special industrial gases

Meet the safety monitoring requirements of different industrial scenarios.


Local and remote dual alarm

Device support:

  • On-site acousto-optic alarm
  • SMS alarm
  • Platform message push
  • Mobile APP remote reminder

Realize local and remote synchronous early warning and improve accident response speed.


Highly reliable industrial design

Adopting industrial-grade components and a stable system architecture, it can adapt to complex industrial environments:

  • High-temperature environments
  • High-humidity environments
  • Dust environments
  • Strong electromagnetic interference environments
  • Harsh outdoor working conditions

Meet the requirements of long-term continuous operation.


Intelligent data management

Through 4G networking, you can achieve:

  • Historical data storage
  • Real-time trend analysis
  • Alarm record query
  • Multi-site unified management
  • Remote operation and maintenance support

Help enterprises build a digital industrial safety management system.


Application industry

Oil and gas industry

Applicable to:

  • Oil and gas pipeline monitoring
  • LNG receiving stations
  • Natural gas pressure regulating stations
  • Safety monitoring of storage tank areas
  • Marine drilling platforms

Realize remote gas leakage monitoring.


Petrochemical industry

Used for:

  • Refineries
  • Chemical production plants
  • Storage tank areas
  • Loading areas
  • Hazardous chemicals storage areas

Ensure the safe operation of the production process.


Smart industrial parks

Suitable for distributed gas monitoring systems in large industrial parks to realize unified platform management and remote centralized monitoring.


Electric energy industry

Applicable to:

  • Hydrogen cooling systems
  • Energy storage facilities
  • Gas power stations
  • New energy projects

Ensure the safe operation of energy systems.


Environmental protection and sewage treatment industry

Applicable to:

  • Sewage treatment plants
  • Biogas projects
  • Landfills
  • Pumping stations
  • Underground pipeline networks

Monitor methane, hydrogen sulfide and other dangerous gases.


Mining industry

Used for:

  • Downhole operation areas
  • Ventilation systems
  • Haulage roadways
  • Dangerous gas monitoring points

Realize long-distance wireless security monitoring.


Underground space and confined space

Especially suitable for:

  • Underground utility tunnels
  • Tunnel engineering
  • Inside storage tanks
  • Underground facilities
  • Remote unattended areas

Solve the problem of difficult deployment with traditional wired monitoring.


Why choose HRP-T1000-H?

Compared with traditional wired fixed gas detection systems, HRP-T1000-H has the following advantages:

  • 4G wireless communication without complicated wiring
  • Faster deployment and lower construction costs
  • Support for remote real-time monitoring and mobile management
  • Flexible multi-gas configuration
  • Local and cloud dual alarm mechanisms
  • Suitable for large-scale distributed monitoring scenarios
  • Intelligent data analysis and history management
  • Industrial-grade stability and reliability
  • Simple maintenance and low operating costs

For modern industrial enterprises that need digital upgrades and intelligent safety management, HRP-T1000-H can provide more efficient, flexible and reliable gas monitoring solutions.


Product value

HRP-T1000-H fixed 4G wireless gas detector integrates the functions of gas detection, wireless communication, remote monitoring and intelligent management, and realizes the digital upgrade of industrial safety monitoring through real-time data acquisition and cloud interconnection.

Whether it is a large industrial park, a remote pipeline project or a distributed monitoring scene, HRP-T1000-H can help enterprises find potential safety hazards in time, reduce accident risks and improve operational efficiency. It is an important part of the safety management system of smart industries.

Fixed 4G Wireless Gas Detector HRP-T1000-H FAQ


1. What is HRP-T1000-H equipment?

HRP-T1000-H is an industrial fixed 4G wireless gas detector, which is mainly used for 24-hour uninterrupted concentration monitoring of dangerous gases in various industrial scenes.

The equipment integrates four core functions: high-precision gas sensing, local screen display, on-site acousto-optic alarm and 4G wireless data transmission, which can capture the fluctuation of ambient gas concentration in real time, automatically upload detection data and abnormal alarm information to the remote monitoring platform, and provide accurate and real-time data support for industrial safety production management and control.


2. What gases can the equipment detect?

The equipment supports modular sensor selection, which can be matched with different sensors according to field working conditions and monitoring requirements to adapt to various gas detection scenarios.

Conventional detectable gases include:

  • Combustible gas (LEL)
  • Methane (CH₄)
  • Hydrogen (H₂)
  • Carbon monoxide (CO)
  • Hydrogen sulfide (H₂S)
  • Oxygen (O₂)
  • Ammonia (NH₃)

Users can customize the sensor type and detection range as needed to realize targeted and accurate on-site gas monitoring.


3. What are the working principles and advantages of 4G wireless communication?

The equipment has built-in industrial-grade 4G communication module, which can directly upload on-site gas concentration data, equipment operation status and leakage alarm information to the remote monitoring platform through public mobile network without external network cable and optical fiber.

Compared with the traditional wired detector, it completely saves on-site wiring, wiring debugging, line maintenance and other processes, greatly reduces the construction cost, and is especially suitable for industrial scenes where monitoring points are scattered, the working environment is complex, the site is not allowed to be wired, and the deployment is more flexible.


4. Is it necessary to use it with a gas alarm controller?

There is no need to match any alarm control host, and the equipment is an integrated independent working equipment.

The fuselage is integrated with gas sensor, high-definition LCD screen, high-decibel audible and visual alarm and 4G transmission module.

The whole process functions of gas detection, real-time concentration display, local acousto-optic alarm and remote data reporting can be independently completed by a single machine, and it is ready to use without supporting auxiliary equipment.


5. What are the core advantages of the product?

① Integrated design, independent operation and convenient deployment without supporting host;

② 4G wireless full netcom transmission, which can get rid of wired constraints and adapt to complex installation scenarios;

③ Local real-time display concentration value, the data is intuitive and clear, which is convenient for on-site inspection;

④ If the standard is exceeded, an audible and visual alarm will be given immediately, and the field personnel can quickly detect the risk;

⑤ Support remote platform real-time monitoring, data retention and equipment status traceability;

⑥ No wiring installation, which greatly saves the cost of construction, wire and later maintenance;

⑦ Industrial-grade hardware configuration, strong stability and long-term continuous online monitoring.


6. What are the main applicable scenarios?

The equipment is specially designed for industrial scenes with the risk of flammable, toxic and harmful gas leakage, and can be continuously monitored online for a long time.

It is widely used in industrial places such as:

  • Oil and gas stations
  • Petrochemical plants
  • Chemical production workshops
  • Gas storage warehouses
  • Sewage treatment plants
  • Boiler rooms
  • Various energy facilities
  • Industrial and mining production plants

7. What is the measuring range of the equipment?

There is no fixed standard for the detection range, which is completely determined by the selected sensor model and can be customized as required.

The general range of the industry is as follows:

  • Combustible gas: 0-100%LEL
  • Oxygen: 0-30%VOL
  • Toxic and harmful gases: conventional ppm high-precision detection

8. What is the alarm method when the gas exceeds the standard and leaks?

The equipment has multiple linkage alarm mechanisms, and once the detected gas concentration exceeds the preset threshold, it will immediately trigger an all-round alarm:

① Local hardware alarm: the red warning light flashes at high frequency and the high-decibel buzzer keeps ringing;

② Screen prompt: the real-time pop-up window of LCD screen displays the over-standard status, gas type and real-time concentration;

③ Remote alarm: the alarm information is instantly pushed to the monitoring platform through the 4G network, and the alarm record is kept in the background in real time, which is convenient for managers to remotely handle and trace the source.


9. Can it be installed in an outdoor environment?

Sure.

The equipment adopts industrial dustproof and waterproof shell design, which has high and low temperature resistance and strong anti-interference performance, and supports indoor and outdoor double-scene installation and use.

During the actual installation, it is necessary to choose a location with reasonable ventilation, no shelter and easy maintenance in combination with the site temperature, humidity, wind and rain environment and gas proportion to ensure the accuracy of test data and the service life of equipment.


10. What is the power supply mode of the equipment?

The external DC power supply is used for continuous power supply, which is specially designed for industrial 24-hour uninterrupted monitoring scene.

Stable external power supply can completely avoid the problem of battery life interruption, ensure all-weather online operation of equipment, and meet the long-term and continuous safety monitoring needs of the factory.


11. Do you support remote platform monitoring and management?

Fully support remote intelligent management and control.

Relying on the built-in 4G module to connect with the exclusive monitoring platform, managers can remotely check the real-time gas concentration at any time, receive over-standard alarm push, retrieve historical monitoring data and alarm records, and check the online operation status of equipment.

At the same time, it supports centralized and unified management of multiple devices, greatly improving the safety management and control efficiency of the factory.


12. What is the core difference from the traditional fixed gas detector?

The traditional fixed detection system is a split structure, which must be composed of three parts: detection probe, transmission cable and alarm controller.

The wiring is cumbersome, the construction period is long, the point expansion is inconvenient, and the later maintenance cost is high.

HRP-T1000-H adopts an integrated design, which integrates the functions of detection, display, alarm and transmission into a single machine, without wiring, supporting host and complex system debugging.

It is simple to install and fast to deploy, especially suitable for scenes with scattered monitoring points, temporary control, old factory reconstruction and difficult wiring.


13. Do you support multi-level alarm settings?

Support self-defined multi-level alarm threshold, and adapt to the factory grading safety management specification.

The equipment can be set with three warning modes:

  • Low-limit warning
  • High-limit warning
  • Equipment fault warning

It can predict the abnormal trend of gas concentration in advance, avoid sudden leakage accidents and ensure the production safety in the factory.


14. How long is the equipment calibration cycle?

There is no fixed and unified standard for equipment calibration period, which mainly depends on:

  • Sensor type
  • Cleanliness of site environment
  • Fluctuation frequency of gas concentration
  • Requirements of industry safety standards

It is suggested that zero calibration and range calibration should be carried out on a regular basis in combination with the working conditions in the field, and the equipment status should be checked in time to ensure accurate long-term detection and sensitive and reliable alarm.


15. Why choose HRP-T1000-H for industrial gas monitoring?

The equipment combines mature industrial gas sensing technology and 4G wireless communication technology, which solves the pain points of traditional wired detector, such as complicated wiring, limited deployment and inconvenient management.

It is a lightweight, intelligent and low-cost industrial gas monitoring solution.

The equipment has multiple advantages, such as accurate detection, on-site early warning, remote control, wiring-free, easy installation and easy maintenance, and is suitable for most industrial hazardous gas monitoring scenarios, which can effectively help enterprises simplify the safety control process, reduce operation and maintenance costs and build a safe production defense line.

Single Gas Detec

  • Detected Gases: Combustible gas, toxic gas
  • Sample method: Diffuse naturally
  • Detection Range:PPM, %LEL, %VOL, mg/m3
  • Response Time: LEL<30S (T90), Toxic < 60 S
  • Setting Method:Button OR Remote Control
  • Power:AC 110V220V3W
  • Output Signal:4G
  • Transmission Distance:<1000M
  • Operating Temperature:-20C~+55C
  • Relative Humidity: 95% (NON-CONDENSING)
  • Explosin-Proof Rating: II 2G Ex db lIC T6 Gb
  • Ingress protection: IP66
  • Enclosure Material: Die-cast aluminum
  • Dimersions: 195x 185 x 95 m
  • Product Weight:<1000g
  • Connection Thread:M20x 1.5 or G1/2
Fixed-4G-Wireless-Gas-Detector-HRP-T1000-H-frontage
  • LED-Display-Screen

LED Display Screen(Optional, not required):

This gas concentration monitoring display screen features a dual-color display and connects to the host computer via RS485 protocol. It is primarily used to display real-time concentration data for various gases. The font colors differ between alarm and normal states. Normal state text is blue, while alarm state text is red.

  • Mounting-Bracket

Mounting Bracket(Optional selection):

High-strength metal mounting brackets are specifically designed for mounting gas monitors and actuators, and are typically used for wall-mounted installations.

  • Calibration-Hood

Calibration Hood(Optional selection):

This is a standard calibration cover specially designed for HIREP series fixed gas detectors, which is used for fast and accurate gas concentration calibration and sensor testing on the equipment site. It has simple structure and good sealing performance, which ensures that the gas can evenly cover the sensor probe during calibration and avoid external interference.

  • Sampling-Tube

Sampling Tube(Optional):

The sampling tube is made of polytetrafluoroethylene (PTFE), which is resistant to high temperatures and corrosion. It is usually used in conjunction with an external pump to safely and stably deliver the gas to be tested in the environment to the sensor analysis unit. It is suitable for remote sampling, detection in confined spaces, or gas monitoring under complex working conditions.

  • Explosion-Proof-Cable-Gland

Explosion-Proof Cable Gland(Optional):

Used for the safe wiring connection of fixed gas detector, alarm host or electrical equipment in explosive environment. Its structure conforms to international explosion-proof standards, ensuring reliable sealing and electrical isolation in flammable and explosive gas environment and preventing accidents caused by sparks or high temperature.

  • Rain-cover

Rain cover(Optional):

Prevents rainwater, dew, and spray water from entering the detector housing, circuitry, and sensor cavity, preventing short circuits due to moisture on the circuit board, reducing rainwater corrosion, and minimizing aging damage to the detector housing and probe caused by ultraviolet radiation. Significantly improves equipment durability, especially suitable for outdoor, open-air, and factory outdoor installation scenarios.

Name Chemical Formula Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit Serial No Name Chemical Formula Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit
Ethane C₂H₆ 3.0  49  Cyclohexane CH₂ (CH₂)₄CH₂ 1.2 
Ethanol C₂H₅OH 3.4  50  Cyclohexanol CH₂ (CH₂)₃CHOHCH₂ 1.2 
Ethylene C₂H₄ 2.8  51  Cyclohexanone CH₂ (CH₂)₃COCH₂ 2.8 
Hydrogen H₂ 4.0  52  Cyclopropane CH₂CH₂CH₂ 2.4 
Methane CH₄ 5.0  53  Decane C₁₀H₁8 0.7 
Methanol CH₃OH 5.5  54  Cyclohexene CH₂ (CH₂)₃CHCHCH₂ 1.2 
Acetylene C₂H₂ 2.5  55  Diacetone Alcohol (CH₃)₂COHCH₂COCH₃ 1.8 
Propanol C₃H₇OH 2.5  56  Di-n-butyl Ether C₄H₉OC₄H₉ 0.9 
Propane C₃H₈ 2.2  57  Dichlorobenzene (C₆H₄)Cl₂ 2.2 
10  Propylene C₃H₆ 2.4  58  Diethylamine (C₂H₅)₂NH 1.7 
11  Toluene C₆H₅CH₃ 1.2  59  Dimethylamine (CH₃)₂NH 2.8 
12  Xylene C₆H₄ (CH₃)₂ 1.0  60  Dimethylaniline (CH₃)₂C₆H₃NH₂ 1.2 
13  Dichloromethane C₂H₄Cl₂ 5.6  61  Dicyclohexylamine (CH₂)₄O₂ 1.9 
14  Dichloroethylene C₂H₂Cl₂ 6.5  62  Ethylene Oxide OCH₂CH₂CH₂ 1.9 
15  Dichloropropane C₃H₆Cl₂ 3.4  63  Diethyl Ether C₂H₅OC₂H₅ 1.8 
16  Diethyl Ether C₂H₅OC₂H₅ 1.7  64  Ethyl Acetate CH₃COOC₂H₅ 2.1 
17  Dimethyl Ether CH₃OCH₃ 3.0  65  Ethyl Acrylate CH₂CHCO₂C₂H₅ 1.7 
18  Formaldehyde CH₂OCH 4.0  66  Styrene C₆H₅C₂H₃ 1.0 
19  Acetic Acid CH₃COOH 4.0  67  Ethylene Oxide CH₂CH₂O 2.6 
20  Acetone CH₃COCH₃ 2.3  68  Ethanethiol C₂H₅SH 2.3 
21  Acetyl Chloride (CH₃CO)₂CH₂ 1.7  69  Ethyl Mercaptan C₂H₅SCH₃ 2.0 
22  Chloroform CH₃COCl 5.0  70  Methyl Ethyl Ketone C₃H₇COCH₃ 1.8 
23  Acrylonitrile CH₂CHCN 2.8  71  Ethylamine C₂H₅NH₂ 3.5 
24  Allyl Chloride CH₂CHCH₂Cl 3.2  72  Gasoline 0.9 
25  Methylacetylene CH₃CCH 1.7  73  Kerosene 0.7 
26  Amyl Acetate CH₃CO₂C₅H₁1 1.0  74  Turpentine 1.8 
27  Aniline C₆H₅NH₂ 1.2  75  Nitrobenzene C₆H₅NO₂ 1.8 
28  Benzene C₆H₆ 1.2  76  Nitromethane CH₃NO₂ 7.1 
29  Benzaldehyde C₆H₅CHO 1.4  77  Phenol C₆H₅OH 1.3 
30  Benzyl Chloride C₆H₅CH₂Cl 1.1  78  Phenylacetylene C₆H₅C₂H 1.1 
31  Bromobenzene C₆H₅CH₂Br 2.5  79  Ethylbenzene C₆H₄C₂H₅ 1.0 
32  Bromoethane CH₃CH₂Br 6.7  80  Methyl Formate HCOOC₂H₅ 2.7 
33  Butadiene CH₂CHCHCH₂ 2.0  81  p-Dioxane C₄H₈O₂ 2.0 
34  Butane C₄H₁0 1.9  82  Isobutane i-C₄H₁0 1.8 
35  Butanol C₄H₉OH 1.8  83  Naphthalene C₁₀H₈ 1.9 
36  Butylene C₄H₈ 1.6  84  Nonane CH₃ (CH₂)₇CH₃ 0.7 
37  Butyraldehyde C₃H₇CHO 1.4  85  Nonanol CH₃ (CH₂)₇CH₂OH 0.8 
38  Butyl Butyrate C₃H₇COOC₄H₉ 1.2  86  Valeraldehyde C₆H₁₀0 1.2 
39  Butyl Methyl Ketone C₄H₉COCH₃ 1.2  87  Pentane C₅H₁2 1.4 
40  Carbon Disulfide CS₂ 1.0  88  Pentanol C₅H₁₁OH 1.2 
41  Chlorobenzene C₆H₅Cl 1.3  89  Propylamine C₃H₇NH₂ 2.0 
42  Chlorobutane C₄H₉CH₂Cl 1.8  90  Propyl Methyl Ketone C₄H₉COCH₃ 1.5 
43  Chloroethane CH₃CH₂Cl 3.8  91  Pyridine C₅H₅N 1.7 
44  Chloroethylene CH₂CHCl 3.8  92  Tetrahydrofuran C₄H₈O 2.0 
45  Chloromethane CH₃Cl 8.1  93  Tetrahydrofurfuryl C₅H₁₀O₂ 1.5 
46  2-Chloropropane CH₃CHCICH₃ 2.6  94  Triethylamine (C₂H₅)₃N 1.2 
47  Cresol C₆H₄OH 1.1  95  Trimethylamine (CH₃)₃N 2.0 
48  Cyclobutane CH₂CH₂CH₂CH₂ 1.8  96  Trioxane (CH₂O)₃ 3.0 

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