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产品名称 Product Name |
1,2-丙二醇 / Propylene Glycol (1,2-Propanediol)(1,2-丙二醇、丙二醇、MPG / 1,2-Propanediol, Propane-1,2-diol, MPG) |
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别名 Synonyms |
1,2-丙二醇、丙二醇、MPG / 1,2-Propanediol, Propane-1,2-diol, MPG |
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化学式 Formula |
C₃H₈O₂ |
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分子量 Molecular Weight |
76.10 g/mol |
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CAS 登记号 CAS No. |
57-55-6 |
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EC / EINECS 号 |
200-338-0 |
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食品添加剂号 E-Number |
E 1520 |
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海关编码 HS Code |
2905.32 |
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PubChem CID |
1030 |
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InChIKey |
DNIAPMSPPWPWGF-UHFFFAOYSA-N |
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主要用途 Primary Use |
不饱和聚酯/PU 树脂原料、防冻液、保湿剂、溶剂、食品/化妆品添加剂(E1520) / UPR/PU, antifreeze, humectant, solvent, food/cosmetic additive |
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主要成分 Main Component |
1,2-丙二醇 C₃H₈O₂ ≥ 99.5%(工业级)/ 1,2-Propanediol C₃H₈O₂ ≥ 99.5% (industrial grade) |
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杂质 Impurities |
水分、酸度、灼烧残渣、铅 / Moisture, Acidity, Residue on ignition, Lead |
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外观 Appearance |
无色透明粘稠液体,几乎无味 / Colorless, transparent viscous liquid, nearly odorless |
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分子量 MW |
76.10 g/mol |
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熔点 MP |
−59 °C |
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沸点/分解 BP / Decomp. |
188.2 °C(常压)/ 188.2 °C (atm.) |
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密度 Density |
1.036 g/cm³ @ 25 °C |
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水中溶解度 Solubility (H₂O) |
与水完全混溶 / Miscible with water |
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其他溶剂溶解度 in other |
与乙醇、乙醚、丙酮、氯仿混溶 / Miscible with ethanol, ether, acetone, chloroform |
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pH |
6.0 – 8.0(水溶液,近中性)/ 6.0–8.0 (aqueous, near neutral) |
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pKa |
≈ 14.9(醇羟基,25 °C)/ ~14.9 (alcoholic OH, 25 °C) |
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晶体结构 Crystal Structure |
—(液态) / Liquid |
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折射率 Refractive Index |
nD ≈ 1.432(20 °C) |
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吸湿/潮解 Hygroscopicity |
有吸湿性 / Hygroscopic |
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项目 Item |
典型值 Typical |
测试方法 Method |
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丙二醇含量 PG content |
≥ 99.5% |
GC / Titration |
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初馏点 Initial boiling point |
≥ 185 °C |
GB/T 7534 |
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干点 Dry point |
≤ 189 °C |
GB/T 7534 |
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相对密度 Relative density |
1.0350 – 1.0370 (25/25 °C) |
GB/T 4472 |
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水分 Water |
≤ 0.20% |
GB/T 6283 / Karl Fischer |
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酸度 Acid content |
≤ 1.67 mL |
滴定 / Titration |
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灼烧残渣 Burning residue |
≤ 0.007% |
重量法 / Gravimetric |
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铅 Pb |
≤ 1 mg/kg |
AAS / ICP |
注:上述指标参考 GB 29216-2012(食品添加剂 丙二醇)及工业级供应商公开 TDS。食品/医药级须符合 GB 29216、USP/FCC。具体数值以重庆广益化工出厂检验单(COA)为准。 / Per GB 29216-2012 and supplier TDS. Food/pharma grade per GB 29216, USP/FCC. Values per batch COA.
Resin industry: unsaturated polyester, epoxy, polyurethane feedstock
Antifreeze & heat-transfer fluid: low-toxicity alternative to ethylene glycol
Cosmetics & personal care: humectant, solvent, fragrance carrier
Food: E1520 humectant, solvent, anti-caking agent (food grade required)
Tobacco: humectant, e-liquid carrier
Pharma: solvent for oral/injectable, excipient
UPR/PU resin, antifreeze, humectant, solvent, food/pharma additive
Store sealed in cool, dry, ventilated place; away from heat and ignition
Segregate from strong oxidizers
Wear protective gloves and goggles when handling
Manage as general chemical; contain spills with sand / dilute with water
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GHS 分类 GHS Classification |
未列入强制 GHS 分类(低毒、无刺激性,按一般化学品管理)/ Not classified; low hazard |
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危害声明 H-statements |
—(常规浓度无显著危害声明)/ — (no significant hazard statement at normal concentration) |
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防范说明 P-statements |
P264, P280, P305+P351+P338(常规防护即可)/ P264, P280, P305+P351+P338 (routine PPE) |
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NFPA 704 |
健康 Health 0 / 易燃 Flammability 1 / 反应 Reactivity 0 |
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急性毒性 Acute Toxicity |
低毒:LD₅₀(大鼠,经口) ≈ 20000 mg/kg / Very low toxicity: LD₅₀(oral,rat) ≈ 20000 mg/kg |
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危险反应 Hazardous Reaction |
与强氧化剂反应;高温分解 / Reacts with strong oxidizers; decomposes on heating |
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灭火 Fire-fighting |
可燃液体;用泡沫、干粉、CO₂、雾状水灭火 / Combustible liquid; foam, powder, CO₂, water spray |
215 kg / 220 kg 闭口铁桶或塑料桶;IBC 吨桶、ISO TANK 可定制。 215/220 kg drums; IBC/ISO tank on request.
在原包装、密封条件下 24 个月。 24 months in original sealed storage.
Industrial use as general chemical; EU exports subject to REACH (EC 200-338-0)
Food grade must comply with GB 29216 / FCC / E 1520 and hold HALAL/KOSHER
Transport class per latest SDS / IATA / IMDG
免责声明 / Disclaimer:本技术数据表仅供参考,不构成任何担保。数据基于编制时可得的公开信息,重庆广益化工有限公司不对因使用本表所产生的任何后果承担责任。实际技术参数请以每批次出厂 COA 为准。 This TDS is for reference only and does not constitute a warranty. Values per batch COA prevail.
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