1,1,1-tris(4-hydroxyphenyl)ethane CAS 27955-94-8

Chemical Name: 1,1,1-tris(4-hydroxyphenyl)ethane
CAS No.: 27955-94-8
Molecular weight: 306.36
Appearance: White to almost white crystalline powder

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1,1,1-Tris(4-hydroxyphenyl)ethane (CAS 27955-94-8): Technical Guide & Applications

1. Product Overview & Specifications

Parameter 1,1,1-Tris(4-hydroxyphenyl)ethane
CAS Number 27955-94-8
Molecular Formula C20H18O3
Molecular Weight 306.36 g/mol
Appearance White to off-white crystalline powder
Purity ≥99% (HPLC)
Melting Point 220-225°C
Solubility Soluble in DMF, DMSO; sparingly soluble in water

2. Key Applications & Use Cases

Primary Industrial Uses:

  • Epoxy resin curing agent for aerospace composites
  • Flame retardant intermediate in polymer formulations
  • Photoresist component in semiconductor manufacturing
  • Antioxidant precursor for high-performance lubricants

Functional Advantages:

  • Superior thermal stability (up to 300°C continuous service)
  • High hydroxyl group density for crosslinking efficiency
  • Low volatility in high-temperature processing

3. Performance Comparison

Property 1,1,1-Tris(4-hydroxyphenyl)ethane Bisphenol A THPE Derivatives
Thermal Degradation Onset 325°C 220°C 290°C
Hydroxyl Value (mg KOH/g) 540-560 160-180 480-500
Viscosity @ 150°C (cP) 12-15 8-10 18-22

4. Industry Case Studies

Case Study 1: Aerospace Epoxy Systems

Client: European Composite Manufacturer
Challenge: Required a high-Tg resin for satellite components
Solution: Formulated with 15% 1,1,1-Tris(4-hydroxyphenyl)ethane
Results: Achieved Tg of 210°C (+35% vs. previous formulation)

Case Study 2: Flame Retardant Cable Coating

Client: Japanese Wire & Cable Producer
Challenge: UL94 V-0 compliance at <0.8mm thickness
Solution: 8% additive loading in PVC matrix
Results: Reduced smoke emission by 60% vs. BPA-based systems

5. Safety & Handling Guidelines

  • PPE Requirements: Nitrile gloves, dust mask (N95), chemical goggles
  • Storage: Keep in airtight container at 15-25°C (59-77°F)
  • Shelf Life: 36 months in original packaging
  • Emergency Procedures: Rinse with water for eye contact, consult SDS for full protocols

Technical Inquiry & Custom Formulation Support

Email: info@vivalr.com
Tel: (86) 15866781826

Request SDS, COA, or application-specific technical packages:

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