Ethylene Glycol Detection (C2H6O2) Gas Fact Sheet - Ion Science UK

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Home » Sensors and Components » Resource Center » Gas Fact Sheets » Ethylene glycol

Ethylene Glycol

Formula: C2H6O2 | CAS: 107-21-1

Ethylene glycol detection: Ethylene glycol is odorless and thus, the odor does not provide any warning of hazardous concentrations. Ethylene glycol vapor is lighter than air.

Ethylene Glycol Detection within Transportation Applications

Ethylene glycol is a key ingredient in automotive antifreeze and coolant, to help keep a car’s engine from overheating and from freezing in the winter. Ethylene glycol is a major component of deicing solutions used in a variety of transportation applications, including cars, boats, and aircraft, as well as on airport runways during the cold winter months. Ethylene glycol also is an ingredient in hydraulic brake fluid products.

Shell chemicals companies are among the leading global producers of ethylene glycols – monoethylene glycol (MEG), diethylene glycol (DEG) and triethylene glycol (TEG) – with world scale plants, leading process technology and global logistics. Glycols are key intermediates in the production of polyester fibres, packaging and resins and are also used in everything from antifreezes and plasticisers to glues and film. – Shell

Health Concerns When Exposed to Different Levels of Ethylene Glycol

Detecting ethylene glycol early to reduce multiple health effects Toxic inhalation of ethylene glycol is unlikely at room temperature because of the chemical’s low volatility but can occur when the liquid is heated, agitated, or sprayed.

Ethylene glycol is only mildly irritating to mucous membranes or skin and is slowly and poorly absorbed through the skin.

Ethylene glycol is rapidly absorbed following ingestion, which is the predominant route of exposure. Ingestion of ethylene glycol leads to systemic toxicity beginning with CNS effects, followed by cardiopulmonary effects, and finally renal failure.

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Everything You Need to Know about Detecting Ethylene Glycol

Our Gas Fact Sheets which is available to download below provides you with key information on the exposure limits and the locations where potentially harmful gases can occur. We also share information on gas detection monitoring techniques and equipment that can help you manage gas detection in the workplace, for worker and site safety.

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Ethylene Glycol Detection

Formula: C2H6O2 | CAS: 107-21-1

Synonyms: ethane-1,2-diol, 1,2-ethanediol, ethylene alcohol, 1,2-dihydroxyethane, ethylene dihydrate, glycol, glycol alcohol, Dowtherm SR 1, Lutrol-9, Macrogol 400 BPC, Norkool, Tescol, and Ucar 17, 1,2-ethandiol

Ethylene Glycol is used widely as an antifreeze for planes and motor cars. It is used in polyester manufacture and preparations of dyes and inks.

Specification	Value/Information
Formula	C2H6O2
CAS no.	107-21-1
Gas Response Factor, 11.7 eV	4.10
Gas Response Factor, 10.6 eV	9.00
Gas Response Factor, 10.0 eV	9.00
ppm per mg/m⁻³, (20 °C, 1 bar)	0.388
Molecular Weight, g/mole	62.1
Melting point, °C	-16
Boiling point, °C	197

Specification	Value/Information
Flash point, °C	111
Upper Explosive Limit, %	51
Lower Explosive Limit, %	3.2
Density, g.cm⁻³	1.113
Ionisation Energy, eV	10.16
EH40 TWA, ppm	20
EH40 TWA, mg.m⁻³	52
EH40 STEL, ppm	40
EH40 STEL, mg.m⁻³	104

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Diffusion Fixed Gas Detection Device

A diffusion gas detection device works, as the name suggests, on the diffusion principle. The sensor is exposed to the ambient air and will measure the gas by means of the diffusion principle. Diffusion means proportional spread of molecules over the available space (from high concentration to low concentration). This also means that a diffusion gas detection device is only able to measure the concentration of gases at the location where the device is located. Since there is no forced flow of the gas to be measured, this device is not suitable for taking measurements remotely, but they do accurately identify what’s present in a given location.

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Pumped instruments are equipped with a built-in sampling pump. This means that the device is constantly drawing in gases. A sampling hose may be connected to extend the reach. This means that you can take a measurement from a safe distance so you have an idea of which gases will be present in which concentration before you are exposed to this environment. This allows you to make an appropriate risk analysis and make the right strategy and PPE choices based on the measurement results. By positioning the measuring hose correctly, you can also make a correct measurement at different heights to chart all risks.

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Comparative specifications
Sensor Variant	MiniPID 2 PPM WR VOC Sensor	MiniPID 2 PPM VOC Sensor	MiniPID 2 PPB WR VOC Sensor	MiniPID 2 PPB VOC Sensor	MiniPID 2 HS VOC Sensor	MiniPID 2 10.0 eV VOC Sensor	MiniPID 2 11.7 eV VOC Sensor	MiniPID 2 PPB XF Sensor
Electrode Stack Colour	Blue	Blue	White	White	Red	White + Gold Spot	White	White + Filter
Minimum Detection Limit	500 ppb	100 ppb	20 ppb	1 ppb	0.5 ppb	5 ppb	100 ppb	1 ppb
Range	0 to >10,000 ppm	0 to 4000 ppm	0 to >200 ppm	0 to >40 ppm	0 to >3 ppm	0 to >100 ppm	0 to >100 ppm	>40 ppm
Response Time T90 (s)	<3	<3	<8	<8	<12	<8	<8	<12s
Sensitivity	>0.4 mV/ppm @ 100ppm	>0.65 mV/ppm @ 100 ppm	>5 mV/ppm	>30 mV/ppm	>600 mV/ppm	>15 mV/ppm	>1 mV/ppm	>30 mV/ppm
Lamp Energy	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.6 eV	10.0 eV	11.7 eV	10.6eV
Product Details	Product Details	Product Details	Product Details	Product Details	Product Details	Product Details	Product Details