Physical and chemical properties
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Color and smell state: colorless, odorless, viscous
transparent liquid
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Toxicity: non-toxic
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Flammability: combustible
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Density: 1.0381
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Volatility: hard to volatilize
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Corrosivity: No corrosion
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Boiling point: 188℃
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Decomposability: high temperature decomposition
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Stability: good
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Melting point: -59℃
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Acidity and alkalinity: Neutral
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Hygroscopicity: good
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Spontaneous ignition point: 421.1℃
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Stickiness: good
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Deliquescence: not deliquescence
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Flash point: 99℃
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Molecular formula: C 3 H 8 O 2
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Solubility: miscible with water, ethanol and most organic
solvents
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Various numbers
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CAS: 57-55-6
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HS: 29053200
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EINECS: 200-338-0
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Uses
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It is the main raw material of unsaturated polyester, epoxy
resin and polyurethane resin; Propylene glycol has good
viscosity and hygroscopicity, and is non-toxic. It is widely
used as a moisture absorbent, antifreeze, lubricant and
solvent in the food, medicine and cosmetic industries; In the
food industry, it is an excellent solvent for seasonings and
pigments. In medicine, it is a solvent, softener and
excipient for making various humidizer and humectant;
propylene glycol has good mutual solubility with various
spices, so it can also be used as a solvent and softener for
cosmetics; it can also be used as a tobacco moisturizer,
moisturizer, antimildew agent, food processing equipment
lubricating oil and food marking ink solvent, propylene
glycol aqueous solution is an effective antifreeze. It is
also a raw material for plasticizers, surface active agents,
food emulsifiers, demulsifiers, fruit ripening agents,
preservatives, hygroscopic agents, lubricants, and antifreeze
agents.
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Hazard category
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General chemicals
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Fire-fighting measures
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Use alcohol-resistant foam, carbon dioxide, dry powder, sand
to extinguish the fire, and use water to keep the container
cool when it is critical.
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Emergency treatment
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Non-toxic, if splashed on the skin or clothes, rinse with
water, splash in the eyes with running water or normal
saline.
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Packaging, storage, transportation
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packed in galvanized iron drum (200-215kg/drum), plastic drum
(200-215kg/drum), IBC (ton drum), liquid bag, stainless steel
tank; because propylene glycol is easy to absorb moisture, it
should be stored in a closed container in a dry place, The
shelf life of airtight barrels is one year, the storage
effect of atmospheric tanks is not as good as barrels, and it
is not suitable for long-term storage; transportation
according to general cargo requirements.
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