Propylene glycol_Food additives - 路赢化工(上海)有限公司
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    Propylene glycol

    Propylene glycol

    Propylene glycol

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  • Product details
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    Chinese name :1, 2-propylene glycol; 1, 2-dihydroxypropane; Propylene glycol; Alpha propylene glycol

     

    Product English name :1, 2-propanediol; 1, 2 - Dihydroxypropane; Alpha Propylene glycol; Propylene glycol

     

    English nickname: (+ / -) - 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

     

    Mixed with water, ethanol and a variety of organic solvents. Propanediol can be used as raw material for unsaturated polyester resin.

     

    In cosmetics, toothpastes and soaps may be used in conjunction with glycerin or sorbitol as a wetting agent. It is used in hair dye as a humidifier, hair leveler, antifreeze, cellophane, plasticizer and pharmaceutical industry.

     

    The physical and chemical properties

     

    Appearance: colorless, viscous, stable, absorbent, almost tasteless, odorless.

     

    Relative density (water =1):1.04

     

    Vapor pressure: 20 ℃ 106 pa

     

    (closed cup flash point: 99 ℃), 107 ℃ (cup)

     

    Specific heat capacity (20 ℃) 2.49 kJ/kg. ℃),

     

    Heat of vaporization (101.3kpa)711kJ/kg.

     

    Spontaneous combustion temperature: 421.1 ℃

     

    Solubility: mixed with water, ethanol and a variety of organic solvents.

     

    Explosion limit :2.6-12.6%V/V

     

    Quality indicators

     

    (the quality system complies with iso9001:2000 standards)

     

    Indicator medical grade industrial grade 1 industrial grade

     

    The appearance of colorless transparent thick 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

     

    The refractive index (1.4307 ~ 1.4317 25 ° C) 1.431 ~ 1.435 1.426 ~ 1.435

     

    The 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

     

    IR test passed -- --

     

    Moisture 0.2wt % Max 0.1wt % Max 0.2% Max

     

    Alkalinity 0.0020 wt% Max 0.0020 wt% Max 0.01% Max

     

    Chloride 0.007 wt% Max -- --

     

    Sulfate 0.006 wt% Max -- --

     

    Heavy metal 5 PPM Max -- --

     

    Burning residue 0.0070 wt% Max

     

    Not required

     

    Not required

     

    Volatile organic compounds - chloroform 60 PPM Max -

     

    Volatile organic compounds - dioxane 380 PPM Max

     

    Organic volatile - dichloromethane 600 ppmmax --

     

    Volatile organic compounds - trichloroethylene 80 PPM Max -

     

    Packaging, storage and transportation

     

    Galvanized iron drum or paint drum packing, net weight 200 or 215 + / -0.5 kg per barrel, or ISO TANK packing or as required by customers.

     

    The product should be stored in a cool, ventilated and dry place, and stored and transported according to general chemical regulations

     

    First aid fire protection measures

     

    First aid:

     

    1. Inhalation: move to fresh air and rest.

     

    Skin contact: remove contaminated clothing and rinse your skin or shower with plenty of water.

     

    3. Eye contact: open the eyes, flush with flowing water for 10 minutes, and then seek medical advice.

     

    This product is flammable and should be kept away from fire. Can be used dry powder, soluble foam, fog-like water, carbon dioxide and other fire extinguishing device folded

     

    The physical and chemical properties

     

    Performance unit or condition indicator

     

    Melting point 27 ℃ - boiling point ℃ (101.3 kPa) 214.0

     

    Flash point 80 ℃

     

    Vapor pressure KPa (20 ℃) 0.008

     

    Relative density D201.0554

     

    The refractive index ND1.4389

     

    Dynamic viscosity m/s46

     

    Explosion limit :2.6-12.6%V/V

     

    Solubility is mutually soluble with water, alcohol, ether and formamide, slightly soluble in benzene and chloroform in safety and flammable, in case of strong oxidant fire risk

     

    Toxicity LD50325.5mg/kg

     

    1, 3-propylene glycol is alias 1,3-dihydroxypropane, English name 1,3-propanediol or 1,3-dihydroxypropane, abbreviation PDO, CAS number 504-63-2. This product is a colorless or grey-yellow viscous transparent liquid, odourless, molecular formula C3H8O2. Hoch2-ch2-ch2oh. The molecular weight is 76.09.

     

    Quality indicators

     

    Project indicators test method for purity, 99.5 ﹪ or greater water (v/v), see appendix ﹪ 0.25 GB/T 606 or less chromaticity 25 GB/T 605 or less relative density, d2041.050 1.056 GB/T 611 boiling range (95%), 213-216 GB/T 615 ℃ acidity of 2.5 GB/T 9736 or less burning residue, establishment of 0.005 GB/T 508 or less

     

    Packaging, storage and transportation

     

    The product is packed in plastic bucket, and the size can be divided into three specifications, such as 25kg, 100kg and 210kg, or the packaging specifications are organized according to the requirements of the user.

     

    Main purpose

     

    1. Produce biodegradable memory fiber PTT as raw material.

     

    2. Used for raw material production of pharmaceutical intermediates.

     

    3. Used as antifreeze agent and organic solvent. folding