Basic information
Chinese name :1, 2-propylene glycol; 1, 2-dihydroxypropane; Propylene glycol; Alpha-propylene glycol
Product English name :1, 2-PropanEDIol; 1, 2 - Dihydroxypropane; α-Propylene glycol; Propylene glycol
English alias :(+/-)-1-Glycerol, polymer-supported; Ethane-1, 2-Diol-prop-1-ene (1:1)
Molecular formula :CH2OHCHOHCH3(C3H8O2)
EINECS:200-338-0
CAS number :57-55-6
Safety term: Avoid contact with skin and eyes
It is miscible with water, ethanol and various organic solvents. Propylene glycol can be used as the raw material of unsaturated polyester resin.
It can be used as a wetting agent in combination with glycerin or sorbitol in cosmetics, toothpaste and soap. It is used as a moisture conditioner and hair leveller in hair dyes, as an antifreeze, and in the cellophane, plasticizer and pharmaceutical industries.
Folding physical and chemical properties
Appearance: Colorless viscous stable water-absorbing liquid, almost tasteless and odorless.
Relative density (water =1):1.04
Steam pressure: 106Pa at 20ºC
Flash point :99ºC(closed cup), 107ºC(open cup)
Specific heat capacity (20 ºC)2.49kJ/(kg.ºC),
Heat of vaporization (101.3kpa)711kJ/kg.
Spontaneous combustion temperature :421.1ºC
Solubility: miscible with water, ethanol and a variety of organic solvents.
Explosion limit :2.6-12.6%V/V
Folding quality index
(Quality system meets ISO9001:2000 standard)
Index pharmaceutical grade industrial excellent grade industrial grade
Appearance colorless transparent viscous liquid
Content 99.5% min 99.5% min 99.0% min
Chroma (platinum-cobalt) 10 max 10 max 16 max
Density (20/25 °C) 1.0350~1.4010 1.0350~1.4010 1.0350~1.4010
Refractive index (25°C) 1.4307~1.4317 1.431~1.435 1.426~1.435
Distillation range, IBP 184.0 °C min 184.0 °C min 183.0 °C min
Distillation range, DP 189.0 °C max 190.0 °C max 190.0 °C max
The IR test passed -- --
Moisture 0.2wt % max 0.1wt % max 0.2% max
Alkalinity 0.0020 wt% max 0.0020 wt% 0.01% max
Chloride 0.007 wt% max -- --
Sulfate 0.006 wt% max -- --
Heavy metal 5 ppm max -- --
Burning residue 0.0070 wt% max -- --
Oxidizing substances are Not required -- --
Reducing substances are Not required -- --
Voc - Chloroform 60 ppm max -- --
Organovolatile - dioxane 380 ppm max -- --
Organic Volatile compounds - Dichloromethane 600 ppmmax -- --
Organic volatile - trichloroethylene 80 ppm max -- --
Folding packaging, storage and transportation
Galvanized iron drum or paint drum, net weight of 200 or 215±0.5 kg per barrel, can also be packed in ISO TANK or according to customer's requirements.
This product should be stored in a cool, ventilated, dry place, according to the general chemical regulations storage and transportation
Folding first aid fire measures
First Aid:
1. Inhalation: Move to a place with fresh air and rest.
2. Skin contact: Remove contaminated clothes and rinse the skin with plenty of water or shower.
3. Eye contact: Open eyes, rinse with running water for 10 minutes, and then seek medical attention.
This product is flammable, should be away from the source of fire. Dry powder, anti-soluble foam, mist water, carbon dioxide and other fire extinguishing devices can be used.
CAS No.: 57-55-6
Product use
1. Used as raw materials for resins, plasticizers, surfactants, emulsifiers and demulsifiers, and can also be used as antifreeze and heat carrier.
2. Used as gas chromatography fixing liquid, solvent, antifreeze agent, plasticizer and dehydrating agent.
3. Carrier solvent; Wetting agent; Humectant; Anti-caking agent; Antioxidants; Tissue improver; Surfactant; Stabilizer; Thickening agent; Dough conditioner; Emulsifier; Flavoring agent; Excipient; Processing AIDS. GB 2760~96 is listed as food processing AIDS.
Mainly used in various spices, colors, preservatives solvent, vanilla bean, roasted coffee granules, natural flavor extraction solvent. A moisturizing and softening agent for sweets, breads, packaged meats, cheeses, etc. It can also be used as an anti-mildew aid for noodles and fillings. Adding 0.006% to soy milk can make the flavor unchanged when heated, and make white and shiny packaged tofu, which is bulked up when fried in oil.
4. Propylene glycol is an intermediate of the fungicide phenacetoconazole.
5. As a solvent, food additives such as preservatives, pigments, antioxidants that are difficult to dissolve in water can be dissolved in it, and then added to food; It has strong hygroscopic properties and has moisturizing and antifreezing effects on food. China stipulates that it can be used for pastries, and the maximum usage is 3.0g/kg.
6. Propylene glycol is an important raw material of unsaturated polyester, epoxy resin, polyurethane resin, the amount of this aspect accounts for about 45% of the total consumption of propylene glycol, this unsaturated polyester is widely used in surface coatings and reinforced plastics. Propylene glycol is viscous and hygroscopic, and non-toxic, so it is widely used as hygroscopic agents, antifreeze agents, lubricants and solvents in the food, pharmaceutical and cosmetic industries. In the food industry, propylene glycol reacts with fatty acids to form propylene glycol fatty acid ester, which is mainly used as food emulsifier. Propylene glycol is an excellent solvent for flavoring and coloring. Propylene glycol is often used in the pharmaceutical industry as a solvent, softener and excipient for the manufacture of various ointments and ointments. Because propylene glycol has good miscibility with various spices, it is also used as a solvent and softener for cosmetics. Propylene glycol is also used as a tobacco humidifier, anti-mold agent, food processing equipment lubricating oil and food marking ink solvent. The aqueous solution of propylene glycol is an effective antifreeze agent.
7. As a drug carrier and granule drug agent. It can be used as moisturizer, softener and solvent in cosmetics. Tobacco industry can be used as tobacco flavor, tobacco moisturizer, preservative and so on. In the food industry as a flavor, food coloring solvent, food packaging softener, food anti-stick agent. It can also be used for the production of unsaturated polyester resin, plastic plasticizer, dehydrating agent, surfactant, curing agent, binder raw materials, etc. It can also be used in paint, pesticides, coatings and other industries.
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