Product description
Propylene glycol is scientifically named as "1,2-propanediol", and has a chemical formula of CH3CHOHCH2OH and a molecular weight of 76.10. There is a chiral carbon atom in the molecule. Its racemate is a hygroscopic viscous liquid and is slightly spicy. It has a specific gravity of 1.036 (25/4 °C), a freezing point of-59 °C, and a boiling point of 188.2 °C, respectively 83.2 °C (1,333 Pa). It is miscible with water, acetone, ethyl acetate and chloroform, and is soluble in ether. It is soluble in many essential oils, but is not miscible with petroleum ether and paraffin oil. It is relatively stable to heat and light, and is more stable at low temperatures. Its L-isomer has a boiling point of 187 to 189 °C and a specific optical rotation [α] of D20-15.0°. It can be oxidized at high temperatures to propionaldehyde, lactic acid, pyruvic acid and acetic acid.
Specifications
| Item |
Specification |
Inspection methods |
Result |
| Appearance |
Colorless and
transparent, viscous
liquid without sediment
and suspended matter |
Visual inspection |
Colorless ard
transparent, viscous
liquid without
sediment and
suspended matter |
| Pg content wt%2 |
299.5 |
GB 29216-2012 |
99.8 |
| Initial melting point,-c |
≥185 |
CB/T 7534-2004 |
185 |
| Dry point,ºC |
≥189 |
GB/T 7534-2004 |
185 |
| Relative density(25°ºC,259C) |
1.0350-1.0370 |
GB/T 4472-2011 |
1.0371 |
| Moisture,w,% |
≤0.20 |
GR/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 5009.12-2017 |
0.0016 |
| Product grade |
high quality |
| Inspection |
Qualified |
Application
1. Used as a raw material for resins, plasticizers, surfactants, emulsifiers, and demulsifiers, as well as as as as an antifreeze and heat carrier.
2. Used as a gas chromatography stationary liquid, solvent, antifreeze, plasticizer, and dehydrating agent.
3. Carrier solvent; Moisturizing agent; Humectant; Anticoagulant; antioxidant; Organizational improvers; Surfactants; Stabilizer; Thickening agent; Dough conditioner; Emulsifier; Seasoning agents; excipient; Processing aids. GB 2760-96 is listed as food processing aids.
Mainly used as a solvent for various spices, pigments, preservatives, and as an extraction solvent for vanilla beans, roasted coffee granules, natural spices, etc. Moisturizing and softening agents for candy, bread, packaged meat, cheese, etc. It can also be used as an anti mold additive for noodles and fillings. Adding 0.006% to soy milk can keep the flavor unchanged when heated, making it a white and glossy packaged tofu. When fried, it will expand in volume.
4. Propylene glycol is an intermediate of the fungicide difenoconazole.
5. As a solvent, food additives that are difficult to dissolve in water, such as preservatives, pigments, and antioxidants, can be dissolved in it before being added to food; It has strong hygroscopicity and has moisturizing and anti freezing effects on food. According to Chinese regulations, it can be used for pastries with a maximum usage of 3.0g/kg.
6. Propylene glycol is an important raw material for unsaturated polyester, epoxy resin, and polyurethane resin, accounting for about 45% of the total consumption of propylene glycol. This type of unsaturated polyester is widely used in surface coatings and reinforced plastics. Propylene glycol has good viscosity and hygroscopicity, and is non-toxic, making it widely used as a hygroscopic agent, antifreeze, lubricant, and solvent in the food, pharmaceutical, and cosmetics industries. In the food industry, propylene glycol reacts with fatty acids to form propylene glycol fatty acid esters, which are mainly used as food emulsifiers; Propylene glycol is an excellent solvent for seasoning and coloring. Propylene glycol is commonly used in the pharmaceutical industry as a solvent, softener, and excipient in the manufacture of various ointments and ointments. Due to its good solubility with various fragrances, it is also used as a solvent and softener in cosmetics. Propylene glycol is also used as a humidifier for tobacco, a mold inhibitor, a lubricant for food processing equipment, and a solvent for food labeling inks. The aqueous solution of propylene glycol is an effective antifreeze.
7. As a drug carrier and granular drug agent. It can be used as humectant, softener and solvent in cosmetics. In the tobacco industry, it can be used as tobacco essence, tobacco humectant, preservative, etc. In the food industry, it is used as the solvent of essence and food pigment, food packaging softener, food anti sticking agent, etc. It can also be used as a raw material for the production of unsaturated polyester resins, plasticizers, dehydrating agents, surfactants, curing agents, and adhesives for plastics. It can also be used in industries such as paint, pesticides, and coatings.
Certifications And Payment method
Company Profile
Shandong Yijia Petrochemical Sales Co., Ltd. was established in April 2015 with a registered capital of
10 million yuan.The company is located in Dongying city, Shandong Province, which is the intersection
and superposition area of the state-level efficient ecological economic zone.
|
Based on the principle of customer first and quality first, Shandong Yijia Petrochemical Sales Co., Ltd.
provides customers with excellent service and high quality products. After years of development, the
company's product sales have been steadily increased, and the products have been exported to south-
east Asia, the United States, Europe, India and Pakistan and other major international markets.Main
products: Dichloromethane, Aniline, Ethanol,xylene, Dimethylformamide, Dimethyl carbonate, Propyl-
ene glycol, Dichloroethane, Dichloropropane, Ether, Propylene oxide, acetone, Glacial acetic acid, Iso-
propyl alcohol, phenol and other chemical products.Clients' satisfaction is our principle. Good reputation
is our origin!The rapid growth phase will bring more surprises and benefits to the chemical industry and
its market segments.Welcome all friend from different counties to visit our company and cooperate! |
Audited Supplier 
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