Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Physical Properties
- Appearance: Colorless slightly viscous liquid, mild sweetish odor, transparent, no visible impurities.
- Melting Point: -40 °C (lit.), sets to glass at extremely low temperature.
- Boiling Point: 197 °C (lit.), 97 °C (1.33kPa).
- Solubility: Miscible with water, ethanol and most organic solvents; 1M soluble in water at 20℃, clear and colorless.
- Density: 0.925 g/mL at 25 °C (lit.), vapor density 4.1 (vs air).
- Optical Activity: Slight optical rotation, (α) -0.2375° (C=1g/100ml MEOH).
- Moisture Absorption: Hygroscopic, easy to absorb moisture when exposed to air for a long time.
- Flash Point: 93 °C (201 °F); refractive index n20/D 1.427 (lit.); vapor pressure 0.02 mmHg at 20 °C.
Chemical Properties
- Chemical Category: Aliphatic diol, also known as 2-Methyl-2,4-pentanediol (MPD), 2,4-Dihydroxy-2-methylpentane.
- Stability: Stable under ambient temperature and pressure (sealed); incompatible with strong oxidants, strong acids and strong reducing agents; stable to alkali, no decomposition when boiled with sodium hydroxide.
- Acid-Base Property: Neutral; pH value 6-8 (25℃, 1M in H?O).
- Hydrolysis: Stable under normal storage conditions, no obvious hydrolysis; easy to undergo condensation reaction with aldehydes in the presence of acid.
- Photostability: Relatively stable to light, no obvious discoloration or decomposition under normal light conditions.
- Reactivity: Has excellent solubility and surface activity; can be used as solvent, emulsifier and penetrant; combustible, combustion produces irritating smoke; non-corrosive to metals.
Chemical Structure
Structural formula: $$\mathrm{C_6H_{14}O_2}$$ (Canonical SMILES: CC(O)CC(C)(C)O)
（Complete structural diagram available on request）
Applications
- Organic solvent: High-grade solvent with strong solubility, used in coatings, printing inks, pigments, dry cleaners and hydraulic oil.
- Cosmetics industry: Used as skin conditioner, humectant, emulsifier and perfuming agent, widely applied in skin care and daily chemical products.
- Industrial field: Used as additive for metal surface treatment agents (rust and oil removal), textile auxiliary, pesticide stabilizer, wood preservative and antifreeze.
- Pharmaceutical & chemical industry: Used as intermediate for organic synthesis, reagent for biochemical research, and medical disinfectant.
- Other fields: Used as penetrant, emulsifier, lubricant additive and brake oil component.
Storage & Handling
- Storage: Sealed container, cool/dry/dark/ventilated; away from sunlight, heat, and incompatible substances (strong oxidants, acids, reducing agents).
- Temperature: 2–8 °C (long-term); below 30 °C (short-term); avoid high temperature; shelf life 12 months.
- Packaging: Sealed glass bottle (100mL/500mL) or plastic barrel (20kg/200kg), moisture-proof and sealed.
- Precautions: Avoid inhalation of vapor and direct contact with skin/eyes; wear protective gear during operation; keep away from ignition sources; use dry powder, foam or water to extinguish fire in case of fire; dispose of waste properly.
Description
Hexylene Glycol (CAS: 107-41-5), also known as 2-Methyl-2,4-pentanediol (MPD), is an aliphatic diol with the chemical formula C?H??O? and molecular weight 118.17. It is a colorless slightly viscous liquid (purity ≥98.0% GC) with mild sweetish odor, hygroscopic and miscible with water. It has excellent solubility and surface activity, widely used as solvent, emulsifier, humectant and intermediate in cosmetics, industry, pharmaceutical and chemical fields. Store sealed in cool and dry conditions to ensure stability and avoid moisture absorption.
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