Styrene Oxide (CAS 96-09-3): Comprehensive Product Guide
Table of Contents
1. Product Overview & Specifications
| Parameter | Value |
|---|---|
| CAS Number | 96-09-3 |
| Molecular Formula | C8H8O |
| Molecular Weight | 120.15 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Density | 1.049–1.054 g/cm³ (20°C) |
| Boiling Point | 191–194°C |
| Melting Point | -37°C |
| Flash Point | 74–79°C (closed cup) |
| Solubility | Miscible with methanol, ether, benzene; slightly soluble in water |
| GHS Classification | Acute Toxicity (GHS06), Health Hazard (GHS08) |
2. Applications & Industrial Uses
Styrene oxide is a versatile intermediate in organic synthesis, primarily used in:
- Pharmaceuticals: Key precursor for β-phenethyl alcohol and derivatives.
- Fragrance Industry: Synthesis of aromatic compounds for perfumes and flavorants.
- Epoxy Resins: Diluent for improving viscosity and processing characteristics.
- Polymer Chemistry: Monomer for specialty polymers and copolymers.
3. Safety & Handling Guidelines
Toxicity Data:
- LD50 (oral, rat): 2,000–4,290 mg/kg
- LD50 (dermal, rabbit): 1,060 mg/kg
- Carcinogenicity: Suspected of causing cancer (IARC Group 2B).
Precautions:
- Wear PPE (gloves, goggles, lab coat) to avoid skin/eye contact.
- Store in sealed containers away from oxidizers, acids, and heat sources.
- Use explosion-proof equipment in well-ventilated areas.
Emergency Measures:
- Inhalation: Move to fresh air; seek medical attention if respiratory distress occurs.
- Skin Contact: Wash thoroughly with soap and water.
- Spill Management: Absorb with inert material and dispose as hazardous waste.
4. Case Studies
Case Study 1: Pharmaceutical Intermediate Production
A European pharmaceutical manufacturer utilized styrene oxide to synthesize β-phenethyl alcohol, achieving 98% purity in large-scale batches. The process reduced reaction time by 20% compared to alternative intermediates.
Case Study 2: Epoxy Resin Optimization
A polymer company in China incorporated styrene oxide as a reactive diluent in epoxy formulations, improving flow properties and reducing curing time by 15% without compromising mechanical strength.
5. Supplier Information
| Supplier | Purity | Packaging |
|---|---|---|
| Pfaltz & Bauer, Inc. (USA) | ≥95% | 500g, 1kg |
| Wuhan Carnoss Technology (China) | 99% | 1kg, 200kg |
6. Contact for Technical & Commercial Inquiries
Email: info@vivalr.com
Tel: (86) 15866781826



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