Item | Specification | Inspection methods | Result |
Appearance |
Colorless and
transparent, viscous liquid without sediment and suspended matter |
Visual inspection |
Colorless and
transparent, viscous liquid without sediment and suspended matter |
Pg content wt%≥
|
≥99.5
|
GB 29216-2012
|
99.8
|
Initial melting point,ºC
|
≥185
|
GB/T 7534-2004
|
185
|
Dry point,ºC
|
≥189
|
GB/T 7534-2004
|
185
|
Relative density(25ºC,25ºC)
|
1.0350-1.0370
|
GB/T 4472-2011
|
1.0371
|
Moisture,w,%
|
≤0.20
|
GB/T 6283-2008
|
0.08
|
Acid content(Consumption of lye),ml
|
≤1.67
|
GB 29216-2012
|
0.44
|
Burning residue,%
|
≤0.007
|
GB 29216-2012
|
0.0007
|
Lead (Pb)
|
≤1
|
GB 5009.12-2023
|
0.0016
|
Product grade
|
high quality | ||
Inspection
|
Qualified |
P ropylene glycol is used for similar applications as other glycols.
P ropylene glycol is an important raw material for unsaturated polyester, epoxy resin, and polyurethane resin. The use amount in this area accounts for about 45% of the total consumption of p ropylene glycol. Such unsaturated polyester is used extensively for reinforced plastics and surface coatings. P ropylene glycol is excellent in viscosity and hygroscopicity and is non-toxic, and thus is widely used as hygroscopic agent, antifreeze, lubricants and solvents in the food, pharmaceutical and cosmetic industry. In the food industry, p ropylene glycol reacts with fatty acid to give p ropylene ester of fatty acids, and is mainly used as food emulsifier; P ropylene glycol is a good solvent for flavorings and pigments. P ropylene glycol is commonly used as solvents, softeners and excipients, etc. in the pharmaceutical industry for the manufacture of various types of ointments and salves. P ropylene glycol is also used as a solvent and a softener for cosmetic since it has good mutual solubility with various spices. P ropylene glycol is also used as tobacco moisturizing agents, antifungal agents, food processing equipment lubricants and solvents for food marking ink. Aqueous solution of p ropylene glycol is an effective anti-freeze agent.
Hebei Zhongshi Chemical Co., Ltd.is mainly engaged in the export of chemical products.
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