1,2-Propanediol

• Category :

  Organic chemicals and Derivatives

• Synonyms :

  Propane-1,2-diol;Propylene Glycol;Glycol-Propylene;Dowfrost(Tm);

• CAS NO :

  57-55-6

• EC NO :

  200-338-0

• Molecular Formula :

  C₃H₈O₂

• Molecular Weight :

  76.09

• Main Specifications :

• InChI :

  InChI:1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

• Product description :

  Physical and chemical properties	Color and smell state: colorless, odorless, viscous transparent liquid
  	Toxicity: non-toxic	Flammability: combustible
  	Density: 1.0381	Volatility: hard to volatile
  	Corrosivity: No corrosion	Boiling point: 188℃
  	Decomposability: high temperature decomposition	Stability: good
  	Melting point: -59℃	Acidity and alkaline: Neutral
  	Hygroscopicity: good	Spontaneous ignition point: 421.1℃
  	Stickiness: good	Deliquescence: not deliquescence
  	Flash point: 99℃	Molecular formula: C 3 H 8 O 2
  	Solubility: miscible with water, ethanol and most organic solvents
  Uses	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 ointments and ointments; propylene glycol has good mutual solubility with various spices, so it can also be used Used as a solvent and softener for cosmetics; it can also be used as a tobacco moisturizer, moisturizer, antifungal 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.
  Hazard category	General chemicals
  Fire-fighting measures	Use anti-capacity foam, carbon dioxide, dry powder, sand to extinguish the fire, and use water to keep the container cool when it is critical.
  Emergency treatment	Non-toxic, if splashed on the skin or clothes, rinse with water, splash in the eyes with running water or normal saline.
  Packaging, storage, transportation	It can be 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, airtight The shelf life of 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

• Molecular Structure :