ethylene glycol;glycerol;propane-1,2-diol | CAS No. 9082-00-2

Q: What are the physical and chemical properties of ethylene glycol (CAS: 9082-00-2)?

Ethylene glycol (CAS: 9082-00-2) is a colorless, viscous, sweet-tasting liquid with a slight odor. It has a molecular weight of 62.07 g/mol and a high boiling point of 197.3°C. Ethylene glycol is moderately soluble in water and miscible with ethanol. It is less reactive than water but can still undergo reactions such as oxidation and esterification. It has a specific gravity of 1.111 g/cm³ and a flash point of 151.1°C.

Q: How is ethylene glycol (CAS: 9082-00-2) typically synthesized?

Ethylene glycol (CAS: 9082-00-2) is typically synthesized through the hydration of ethylene oxide. The reaction is catalyzed by acidic or basic catalysts, with sulfuric acid being the most common. The process involves the conversion of ethylene oxide to ethylene glycol with high selectivity and yield, often in the range of 90-95%. An alternative method involves the direct hydration of ethylene, but this is less common and more challenging.

Q: What industries use ethylene glycol (CAS: 9082-00-2)?

Ethylene glycol (CAS: 9082-00-2) is widely used in various industries. It is a key component in antifreeze and coolant formulations, automotive brake fluids, and as a solvent in the production of polyester fibers and polyurethane. It is also utilized in the manufacturing of polyester resins, brake fluid, and as a humectant in paints and coatings. Additionally, it is used in the electronics industry for cleaning and in sensors as a humidity indicator.

Q: What precautions should be taken when handling ethylene glycol (CAS: 9082-00-2)?

When handling ethylene glycol (CAS: 9082-00-2), it is important to wear appropriate personal protective equipment (PPE) such as gloves and safety goggles. Store it in a cool, dry place away from direct sunlight and heat sources. Use appropriate ventilation and handle it in a fume hood to avoid inhalation. In case of a spill, immediately contain it using absorbent materials and dispose of the waste according to local regulations. Always consult the Safety Data Sheet (SDS) for detailed guidelines on handling and storage.

ethylene glycol;glycerol;propane-1,2-diol

Basic Information

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CAS Number

9082-00-2

Molecular Formula

C8H22O7

Molecular Weight

230.26 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Density

1.013 g/mL at 25 °C

Solubility

H2O: <0.1 % (w/w) at 25 °C

Vapor Pressure

<0.3 mmHg ( 20 °C)

SMILES

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CC(CO)O.C(CO)O.C(C(CO)O)O

InChI

InChI=1S/C3H8O3.C3H8O2.C2H6O2/c4-1-3(6)2-5;1-3(5)2-4;3-1-2-4/h3-6H,1-2H2;3-5H,2H2,1H3;3-4H,1-2H2

InChIKey

VKVYTKULMKDWLP-UHFFFAOYSA-N

LogP

-3.337599999999997

Topological Polar Surface Area

141.61 Å²

Hydrogen Bond Donor/Acceptor

7 / 7

Complexity

52.1

Synonyms & References

English

9082-00-2
Ethane-1,2-diol;propane-1,2-diol;propane-1,2,3-triol
GLYCEROL PROPOXYLATE-B-ETHOXYLATE
SCHEMBL8462303
Glycerol propoxylate-block-ethoxylate, average Mn ~4,000
Glycerol propoxylate-block-ethoxylate, average Mn ~5,300
VKVYTKULMKDWLP-UHFFFAOYSA-N
Glycerol propoxylate-block-ethoxylate, average Mn ~5,200
POLYGLYCOL 15-200
ethane-1,2-diol,propane-1,2-diol,propane-1,2,3-triol
POLYGLYCOL 1000
Glycerol polyethylene-propylene glycol ether

MDL Number

MFCD00132859

FAQ

What are the physical and chemical properties of ethylene glycol (CAS: 9082-00-2)?

Ethylene glycol (CAS: 9082-00-2) is a colorless, viscous, sweet-tasting liquid with a slight odor. It has a molecular weight of 62.07 g/mol and a high boiling point of 197.3°C. Ethylene glycol is moderately soluble in water and miscible with ethanol. It is less reactive than water but can still undergo reactions such as oxidation and esterification. It has a specific gravity of 1.111 g/cm³ and a flash point of 151.1°C.

How is ethylene glycol (CAS: 9082-00-2) typically synthesized?

Ethylene glycol (CAS: 9082-00-2) is typically synthesized through the hydration of ethylene oxide. The reaction is catalyzed by acidic or basic catalysts, with sulfuric acid being the most common. The process involves the conversion of ethylene oxide to ethylene glycol with high selectivity and yield, often in the range of 90-95%. An alternative method involves the direct hydration of ethylene, but this is less common and more challenging.

What industries use ethylene glycol (CAS: 9082-00-2)?

Ethylene glycol (CAS: 9082-00-2) is widely used in various industries. It is a key component in antifreeze and coolant formulations, automotive brake fluids, and as a solvent in the production of polyester fibers and polyurethane. It is also utilized in the manufacturing of polyester resins, brake fluid, and as a humectant in paints and coatings. Additionally, it is used in the electronics industry for cleaning and in sensors as a humidity indicator.

What precautions should be taken when handling ethylene glycol (CAS: 9082-00-2)?

When handling ethylene glycol (CAS: 9082-00-2), it is important to wear appropriate personal protective equipment (PPE) such as gloves and safety goggles. Store it in a cool, dry place away from direct sunlight and heat sources. Use appropriate ventilation and handle it in a fume hood to avoid inhalation. In case of a spill, immediately contain it using absorbent materials and dispose of the waste according to local regulations. Always consult the Safety Data Sheet (SDS) for detailed guidelines on handling and storage.