Propylene Glycol (PG) / Propilenglicol 99.5%, 99.7%, 99.9% CAS No.: 57-55-6

Propylene Glycol (PG) / Propilenglicol 99.5%, 99.9% CAS No.: 57-55-6  Product DescriptionPropylene 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. It is produced on a large scale primarily for the production of polymers. In the European Union, it has E-number E1520 for food applications. For cosmetics and pharmacology, the number is E490. Propylene glycol is also present in propylene glycol alginate, which is known as E405. Propylene glycol is a compound which is GRAS (generally recognized as safe) by the US Food and Drug Administration under 21 CFR x184.1666, and is also approved by the FDA for certain uses as an indirect food additive. Propylene glycol is approved and used as a vehicle for topical, oral, and some intravenous pharmaceutical preparations in the U.S. and in Europe.Product Features:The content of industrial propylene glycol is over 99.5%, and the product has a stable quality and high operating rate. It can meet various demands of customers and has won unanimous praise from customers.Packaging and Transportation:· It can be packaged in a galvanized iron bucket or a plastic drum, with specifications of 25 kg, 200 kg and 215 kg.· It can be packaged in an ISO tank or a liquid bag, or according to the requirements of customers. Detailed Photos     Product Parameters Hydroxyl No.MonohydroxyContent99.5%    99.7%    99.9%Packing25kg, 200kgs, 215kg/DrumProduct NamePropylene GlycolMolecular FormulaC3H8O2Density1.036 G/Ml at 25 °c(Lit.)SensitiveHygroscopicTransport Package215kg/Galvanized Drum; 1mt/IBC DrumSpecification99.5%    99.7%    99.9%HS Code2905320000 ItemSpecificationInspection methodsResultAppearanceColorless andtransparent, viscousliquid without sedimentand suspended matterVisual inspectionColorless andtransparent, viscousliquid withoutsediment andsuspended matterPg 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 5009.12-2017 0.0016 Product Grade High QualityInspection Qualified  Production Line    Application· Used to produce unsaturated resin, polyether, epoxy resins, etc.;· Used for organic synthesis of solvents, dehydrating agents and gas chromatography stationary liquids, synthesizing emulsifier, demulsifier, etc.;· Used as a chemical intermediate for pesticide fungicide difenoconazole;· Used in cellophane, plasticizer and pharmaceutical industry;· The aqueous solution of propylene glycol is an effective antifreeze;Storage· The product should be stored in a cool and ventilated warehouse. The warehouse temperature should not exceed 37°C and the relative humidity should be controlled below 60%.· It should be stored separately from oxidants, reductants, acids, etc. It is prohibited to mix them in storage and it is necessary to keep containers sealed.· It should be kept away from kindling and heat sources and it is prohibited to use mechanical equipment and tools that are easy to generate sparks.· The storage area should be equipped with emergency treatment devices for leakage. The cushion layer should be provided at the bottom layer when it is stored by stacks. The stacking height should not exceed 2m.Our Services:1. Provide the high quality and low price product2. Offer the safest package and transportation3. Offer the most satisfying service4. Provide the best after-sales serviceFAQQuestion 1: Are you a factory or a trade company?Answer: We are a factory and have our top sales for the trade service.Question 2: Can I try to get a SAMPLE before the order?Answer: Sure. You can ask for the samples. Usually they're free.Question 3: Where is your factory located? How can I visit there? Answer: Our factory is located in Huai An, Jiangsu, China. You can fly to Shanghai or Huai An airport directly. All our clients, from home or abroad, are warmly welcome to visit us!Question 4: How does your factory do regarding quality control? Answer: Quality is priority. We always attach great importance to quality contro