Polypropylene Glycol
| Formula: | H(OCH(CH₃)CH₂)ₙOH |
| CAS Number: | 25322-69-4 |
| EC Number (EINECS): | 618-352-4 (general polymer) |
| HS Code: | 39073000 |
| UN Number: | Not classified as hazardous for transport |
| IUPAC Name: | Poly(oxypropylene) glycol |
| Also Known As: | Polypropylene Oxide Glycol; PPG; Poly(oxy-1,2-propane)diol |
| Molecular Weight, g/mol: | Varies with grade (commonly 400–4000) |
Typical Specifications
| Appearance: | Clear, viscous liquid |
| Odor: | Slight, characteristic |
| Boiling Point, °C: | >200 (decomposes) |
| Density, g/cm³ (at 20°C): | 1.00–1.02 |
| Flash Point, °C: | 230 (closed cup, typical) |
| Refractive Index (20°C): | ~1.45 |
| Purity, %: | ≥99 |
| Grades Available: | Industrial, Polyol (for PU), Cosmetic/Pharma |
| Packaging: | 200kg drums, 1000kg IBCs, bulk tankers |
Applications / Uses
Primary Applications
-
Base polyol for production of polyurethane foams, elastomers, and coatings
-
Intermediate for adhesives, sealants, and resins
-
Component in lubricants and hydraulic fluids
Secondary Applications
-
Humectant and solvent in cosmetics and personal care formulations
-
Plasticizer in polymer processing
-
Used in textile finishes and surfactants
End Industries Served: Polyurethanes, Adhesives, Coatings, Lubricants, Automotive, Construction, Textiles, Cosmetics, Personal Care
Safety & Handling Information
Hazard Class (GHS): Generally not classified as hazardous; may cause mild irritation
Hazard Statements (H-Codes):
-
H319: Causes serious eye irritation
-
H315: Causes skin irritation (for certain grades)
Precautionary Statements (P-Codes):
-
P280: Wear protective gloves/eye protection
-
P264: Wash hands thoroughly after handling
-
P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
-
Store in tightly sealed containers, protected from moisture
-
Keep away from heat and direct sunlight
-
Recommended storage temperature: 20–40°C
Transport Information
-
ADR/RID: Not classified as dangerous goods
-
IMDG: Not classified as dangerous goods
-
IATA: Not classified as dangerous goods