Propylene glycol is propylene glycol
unsaturated polyester, epoxy resin, polyurethane resin, an important raw material, the amount of this total consumption of propylene glycol about 45%, this large number of unsaturated polyester for surface coatings and reinforced plastics. Propylene glycol viscosity and good moisture absorption, and non-toxic, and thus in the food, pharmaceutical and cosmetics industry, widely used as dehumidifying agents, antifreeze, lubricants and solvents. In the food industry, propylene glycol and propylene glycol fatty acid ester fatty acid reaction, mainly used as a food emulsifier; propylene glycol is a good flavoring and coloring solvents. Propylene glycol used in the pharmaceutical industry for manufacturing various types of ointment, grease solvents, softeners, and excipients such as propylene glycol and various spices have good mutual solubility,
air force one shoes, which is also used as solvents and softening cosmetics agents and so on.
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About ingredient characteristics [1,2 - propanediol] [1,3 - propanediol] About the English chemical name :1,2-propanediol, propylene glycol, 1, 2-dihydroxypropane, methyl ethyl glycol. CAS :57-55-6 Alias: propylene glycol, 1,2 propylene glycol. Composition formula: C3H8O2 Molecular Weight: 76.09 Relative density: (20/20 ℃) 1.0381 structure: CH3-CHOH-CH2OH (1,2 - propanediol), or CH2OH-CH2-CH2OH (1,3 - propanediol) characteristics Appearance: colorless viscous hygroscopic liquid, almost tasteless and odorless. Boiling Point: 188.2 Melting point: -59 ℃ burning: 421.1 ℃ Viscosity (20 ℃) 56.0mpa.s, surface tension: 72.0 (25 ℃) Specific Heat (20 ℃) 2.49kJ / (kg. ℃), heat of vaporization (101.3kpa ) 711kJ/kg. Applications with water, ethanol and various organic solvents. Propylene glycol can be used as raw material for unsaturated polyester resins. In cosmetics, toothpaste and soap with glycerin or sorbitol can be used as a wetting agent with the. Hair dyes used in the humidity, even hair tonic, also used as antifreeze, is also used cellophane, plasticizers and pharmaceutical industries. [1,
nike air force one high,2 - propanediol] First, the physical and chemical properties Appearance: colorless viscous liquid absorbent and stable, almost tasteless and odorless. Boiling point: 188.2 ℃ Melting point: -59 ℃ Viscosity: (20 ℃) 60.5mpa.s, the relative density (water = 1): 1.04 Vapor Pressure: 20 ℃ Flash point when the 106Pa: 99 ℃ (closed cup), 107 ℃ ( open cup) heat capacity (20 ℃) 2.49kJ / (kg. ℃), heat of vaporization (101.3kpa) 711kJ/kg. Natural temperature: 421.1 ℃ Solubility: water, ethanol and various organic solvents. Second, the quality indicators (quality system in line with ISO9001: 2000 standard) index of industrial pharmaceutical grade quality product at the industry level Appearance colorless transparent liquid Colorless transparent liquid Colorless transparent liquid Content 99.5% min 99.5% min 99.0% min Color (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 distillate Cheng, IBP 184.0 ° C min 184.0 ° C min 183.0 ° C min Distillation, DP 189.0 ° C max 190.0 ° C max 190.0 ° C max IR test passed - - Water 0.2 wt% max 0.1 wt% max 0.2% max alkalinity of 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 - - Residue on ignition 0.0070 wt% max - - oxidizing substances Not required - - reducing substances Not required - - Organic volatile - chloroform 60 ppm max - - Organic volatile - dioxane 380 ppm max - - volatile organic points - dichloromethane 600 ppm max - - Organic volatile - TCE 80 ppm max - - Third, packaging, storage or paint galvanized iron barrel, net weight of 200 or 215 ± 0.5 kg, ISO TANK can be adopted in accordance with customer requirements or packaging. This product should be stored in a cool, ventilated, dry place, storage and transportation by the general provisions of four chemicals, first aid and fire first-aid measures: 1. Inhalation: Remove to fresh air, rest. 2. Skin Contact: Remove contaminated clothing, wash skin with plenty of water or shower. 3. Eye contact: distraction eyes, flush with flowing water for 10 minutes, and then seek medical attention. This product is combustible and should stay away from fire. Can be dry, resistant foam, water spray, carbon dioxide fire extinguishing system. CAS No.: 57-55-6 [1,3 - propanediol] First,
nike air force 1 high, the physical and chemical indicators of the nature or conditions of the performance units boiling point Melting point ℃ -27 ℃ (101.3kPa) 214.0 Flash point ℃ 80 vapor pressure KPa (20 ℃) 0.008 refractive index of the relative density of D201.0554
ND1.4389 dynamic viscosity m/s46 solubility with water, alcohol, ether and soluble in formamide, slightly soluble in benzene and chloroform security
flammable and met a strong oxidant a fire hazard toxicity LD50325.5mg/kg. rat oral 1,3 - propanediol alias as 1,3 - dihydroxy propane, the English name of 1,3-propanediol or 1,
nike air force one low,3-dihydroxypropane, abbreviation of PDO, CAS No. 504-63-2. The product is a colorless or pale yellow transparent viscous liquid,
air force one high, no odor, molecular formula C3H8O2. Structure HOCH2-CH2-CH2OH. Molecular weight of 76.09. Second, the quality index Item Index Test Method for Purity, ≥ 99.5 Appendix water (v / v), ≤ 0.25GB / T 606 chroma ≤ 25GB / T 605 relative density, d2041.050-1.056GB / T 611 Boiling range (95%), ℃ 213-216GB / T 615 Acidity ≤ 2.5GB / T 9736 Residue on ignition, ≤ 0.005GB / T 508 c, packaging, storage and transportation products, plastic drum, packaging size can be divided into 25kg, 100kg, 210kg and other three specifications, or according to user requirements, organize packaging specifications. Fourth, the main use of 1, as the production of biodegradable materials with the memory of fiber PTT. 2, for the raw materials to produce pharmaceutical intermediates. 3, used as antifreeze, organic solvents. Atlas Atlas entry for more extended reading: 1
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