Ethylene glycol is a colorless, slightly viscous liquid with a boiling point of 197.4 C and a freezing point of -12.6C. it can be mixed with water in any ratio. After mixing, the freezing point decreases significantly due to the change of the vapor pressure of the cooling water. The degree of its decrease decreased with the increase of the content of ethylene glycol in a certain range. When the content of ethylene glycol is 60% , the freezing point can be reduced to -48.3 C, and when the limit is exceeded, the freezing point will rise instead. Ethylene glycol antifreeze is easy to produce acidic substances in use, which can corrode metals. Ethylene glycol is toxic, but because of its high boiling point, it does not produce steam that can be inhaled into the body and cause poisoning. Ethylene glycol water absorption, storage containers should be sealed to prevent water after overflow. Since water has a lower boiling point than ethylene glycol, it is water that is evaporated in use. When a coolant is lacking, just add clean water. This antifreeze can be recovered after use (to prevent mixing with petroleum products) , after precipitation, filtration, water adjustment concentration, add preservatives, but also continue to use, generally available for 3 -5 years. But to filter many times to prevent damage to motor vehicles. Many people think that the freezing point of ethylene glycol is very low. The freezing point of antifreeze is a neutralizing freezing point when water and ethylene glycol are mixed in different proportions. However, this is not the case because the mixing changes the vapor pressure of the cooling water, the freezing point drops significantly. The degree of its decrease decreases with the increase of the content of ethylene glycol in a certain range, but once it exceeds a certain proportion, the freezing point will increase instead. The antifreeze temperature is -25C when 40% ethylene glycol is mixed with 60% soft water, and -35C when 50% ethylene glycol and 50% water are mixed in the antifreeze.
| CAS number: 107-21-1 |
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| EINECS number: 203-473-3 |
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| Ethylene glycol specifications |
| Items |
test results |
| appearance |
colorless transparent liquid |
| Density(g/cm3) |
1.1134 |
| purity |
99.90% |
| Diethylene glycol |
0.02% |
| water content |
0.01% |
| iron content (Fe)mg/kg |
≤0.1 |
| mg/kgchlorine content (expressed as CL) |
≤0.8 |
| chromaticity Pt-Co Pt-Co |
≤5 |
| acidity (eg acetic acid) |
0.00% |
| Usage Introduction |
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| ethylene glycol |
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| ethylene glycol |
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| Mainly used in the production of polyester polyester, polyester resin, hygroscopic agents, plasticizers, surfactants, synthetic fibers, cosmetics, and explosives, and as solvents for dyes/inks, antifreeze agents for engines, gas dehydrating agents, manufacturing resins, and can also be used as wetting agents for glass paper, fibers, leather, and adhesives. It can produce synthetic resin PET, fiber grade PET or polyester fiber, and bottle grade PET for making mineral water bottles, etc. It can also produce alkyd resin, glyoxal, etc., and be used as an antifreeze. In addition to being used as an antifreeze for automobiles, it is also used for the transportation of industrial cooling capacity, commonly referred to as a refrigerant carrier. |
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| When using ethylene glycol as a refrigerant, attention should be paid to: 1. Its freezing point changes with the concentration of ethylene glycol in the aqueous solution. When the concentration is below 60%, the concentration of ethylene glycol in the aqueous solution increases and the freezing point decreases. However, when the concentration exceeds 60%, as the concentration of ethylene glycol increases, its freezing point shows an upward trend, and its viscosity also increases with the concentration. When the concentration reaches 99,9%, its freezing point rises to -13,2 ºC, which is an important reason why concentrated antifreeze (antifreeze mother liquor) cannot be used directly and must be taken seriously by users. |
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| 2. Ethylene glycol contains hydroxyl groups and works at temperatures ranging from 80 ° C to 90 ° C. Ethylene glycol is first oxidized to glycolic acid, which is then oxidized to oxalic acid, also known as oxalic acid, containing two carboxyl groups. Oxalic acid and its by-products first affect the central nervous system, followed by the heart, and then affect the kidneys. If left untreated, excessive intake of ethylene glycol can lead to death., Ethylene glycol ethylene glycol diacid causes corrosion to equipment and leads to leakage. Therefore, anti-corrosion agents must also be included in the prepared antifreeze to prevent corrosion of steel and aluminum, as well as the formation of scale. |
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| 3. Ethylene glycol itself is a relatively active substance that easily polymerizes into high molecular weight polymers, which are further oxidized into polymer organic acids (commonly known as oil sludge), forming a very viscous substance that is prone to scaling after sedimentation; Ethylene glycol reacts with oxygen to produce trace amounts of acetic acid. |
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| Packaging, storage and transportation |
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Pack in galvanized iron drums, each weighing 100kg or 200kg. Storage should be sealed, and long-term storage should be nitrogen sealed, moisture-proof, fireproof, and frost proof. Store and transport according to regulations for flammable chemicals.
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| Our Advantage 1. Purity, packaging, labeling, third-party testing. 2. A sample order is acceptable. 3. Answer your inquiry as soon as possible within 12 hours. Four. Photos of the goods before and after being loaded into the container will be sent to you by e-mail. 5. Guaranteed delivery time. 6. Have sufficient experience in this field. Seven. Good cooperation with freight forwarders and shipping companies. 8. Professional Sales and engineers will address your concerns. |
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