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Product Description
Propylene glycol
Propylene Glycol USP/EP/FCC (CAS 57-55-6) is a high-purity (>99.5%) multi-functional liquid solvent and humectant compliant with global pharmacopeia standards. As a USP-grade pharmaceutical excipient, it serves as low-endotoxin (≤0.5EU/ml) injection solvent; in cosmetics, it acts as OECD 439-certified low-irritant humectant; for food processing, FCC-grade PG functions as antifreeze carrier (21 CFR 184.1666); while industrial applications leverage its low-toxicity antifreeze properties (-59°C, ASTM D1384). Technical documentation available.
| Propylene glycol Chemical Properties |
| Melting point | -60 °C (lit.) |
| Boiling point | 187 °C (lit.) |
| density | 1.036 g/mL at 25 °C (lit.) |
| vapor density | 2.62 (vs air) |
| vapor pressure | 0.08 mm Hg ( 20 °C) |
| refractive index | n20/D1.432(lit.) |
| FEMA | 2940 | PROPYLENE GLYCOL |
| Fp | 225 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| pka | 14.49±0.20(Predicted) |
| form | Viscous Liquid |
| color | APHA: ≤10 |
| Specific Gravity | 1.038 (20/20℃)1.036~1.040 |
| PH | 6-8 (100g/l, H2O, 20℃) |
| Odor | at 100.00 %. odorless very slight alcoholic |
| Odor Type | odorless |
| Optical Rotation | -0.11° (C=1.00g/100ml, CHCL3) |
| biological source | synthetic |
| explosive limit | 2.4-17.4%(V) |
| Water Solubility | miscible |
| Sensitive | Hygroscopic |
| Merck | 14,7855 |
| JECFA Number | 925 |
| BRN | 1340498 |
| Dielectric constant | 32.0 |
| InChIKey | DNIAPMSPPWPWGF-UHFFFAOYSA-N |
| LogP | -0.92 |
| Surface tension | 35.44mN/m at 298.15K |
| CAS DataBase Reference | 57-55-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Propylene glycol(57-55-6) |
| EPA Substance Registry System | Propylene glycol (57-55-6) |
| Safety Information |
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | TY2000000 |
| Autoignition Temperature | 779 °F |
| TSCA | Yes |
| HS Code | 29053200 |
| Hazardous Substances Data | 57-55-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 19400 - 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg |
Product Usage
Propylene Glycol (CAS 57-55-6) serves as a vital multifunctional ingredient across industries due to its high solubility and low toxicity. In pharmaceuticals, it acts as a USP-certified solvent for oral/transdermal formulations with low endotoxin levels (≤0.5 EU/ml). Cosmetic manufacturers utilize its OECD 439-certified moisturizing properties in lotions and serums for enhanced hydration. Food processing employs FCC-grade PG as a safe antifreeze carrier (21 CFR 184.1666), while industrial applications leverage its ASTM D1384-compliant antifreeze efficiency (-59°C freeze point). Technical portfolios available for sector-specific solutions.
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We provide fully compliant, safe and customizable packaging solutions for Sodium Hydroxide, Calcium Chloride, Sodium Carbonate, Potassium Hydroxide and all our industrial chemical products. All packaging strictly follows UN, IMDG and IATA international transport standards, with anti-leakage, moisture-proof and corrosion-resistant design. We also offer professional loading, container reinforcement and full-process traceable global shipping services, ensuring your goods arrive safely and on time at any destination worldwide.
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