Tripropylene Glycol
| Formula: | C₉H₂₀O₄ |
| CAS Number: | 24800-44-0 |
| EC Number (EINECS): | 500-038-9 |
| HS Code: | 29094900 |
| UN Number: | Not regulated as hazardous for transport |
| IUPAC Name: | 2,2'-(Propane-1,2-diyloxy)bis(1-propanol) |
| Also Known As: | TPG; Oxydipropanol; 1,1′-Oxybis(2-propanol) |
| Molecular Weight, g/mol: | 192.25 |
Typical Specifications
| Appearance: | Clear, colorless, viscous liquid |
| Odor: | Practically odorless, faintly sweet |
| Melting Point, °C: | -60 (approx.) |
| Boiling Point, °C: | 280–285 |
| Density, g/cm³ (at 20°C): | 1.01–1.02 |
| Flash Point, °C: | 149 (closed cup) |
| Refractive Index (20°C): | 1.437 |
| Solubility: | Miscible with water, alcohols, ketones |
| Vapor Pressure (at 20°C): | <0.01 mmHg |
| Purity, %: | ≥99.0 |
| Grades Available: | Industrial, Technical, USP/Pharma Grade |
| Packaging: | 200kg drums, 1000kg IBCs, bulk ISO tanks |
Applications / Uses
Primary Applications
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Used as a solvent in coatings, inks, and cleaners
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Plasticizer and intermediate in resins and polyurethanes
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Ingredient in cosmetics and personal care (moisturizers, deodorants)
Secondary Applications
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Humectant and viscosity regulator
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Intermediate in fragrance and flavor formulations
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Used in brake fluids, hydraulic fluids, and lubricants
End Industries Served: Coatings, Adhesives, Cosmetics, Pharmaceuticals, Inks, Lubricants, Textiles, Plastics
Safety & Handling Information
Hazard Class (GHS): Not classified as hazardous in most regions; may cause mild irritation
Hazard Statements (H-Codes):
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H319: Causes serious eye irritation
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H335: May cause respiratory irritation (mist/vapors)
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing vapors/mist
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
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Store in tightly closed containers
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Keep in a cool, dry, ventilated area away from strong oxidizing agents
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Protect from heat and direct sunlight
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods