Walsun Tech & Trade Co., Ltd

1. Basic information:
Product name: Tert-Butyl Acetate
Molecular Formula: C6H12O2
CAS Number: 540-88-5
HS/Tariff No: 2915390090
CH3
Structural formula: H3C-C-O-C-CH3
CH3 O

2. Description:
TBAC is a low-toxic solvent with a medium evaporation rate, a wide range of dissolving power, negligible photochemical reactivity, and a flash point within a safe range. The United States Environmental Protection Agency (EPA) lists it as: exempt from restricted volatile solvents (VOC-Exempt) and non-hazardous air pollutants (Non-HAP). It has excellent solvency for a variety of substances including nitrocellulose, acrylic, alkyd, polyester and urethane resins. TBAC is mainly used in coatings, paints, adhesives, industrial cleaning agents, and can significantly reduce the VOC and HAP content of the product.

3. Physical Properties:

Property Value
Molecular Weight (g/mol) 116.2
Odor Camphor-like odor
Boiling Point (@ 760 mmHg, °C) 98
Flash Point (Closed Cup, °C) 4.4
Solidification Point (°C) -58
Vapor Pressure (mm Hg @ 20°C) 31
Evaporation Rate (vs n-BuAc = 1) 2.8
Density (g/cm3, 25℃) 0.859
Specific Gravity (20/20°C) 0.867
Viscosity (cps @ 25°C) <1
Surface Tension (dynes/cm @ 25°C) 22.4
Solubility in Water (% @ 23°C) 0.8
Refractive Index (@ 25°C) 1.444
Hansen Solubility Parameters
Hydrogen Bonding
Nonpolar
Polar
Total cgs units
2.91
6.97
1.66
7.73
Electrical Resistivity (mega Ohms) 23.81
KB Value 114
Dielectric Constant (DIC @ 20°C in cyclohexane) 1.94
SARA 313 List Not listed

4. Production method (Raw material):
Raw material: Acetic Acid & Isobutylene
Processing: Acetic acid and isobutylene undergo an addition reaction under the action of a catalyst to generate tert-butyl acetate.
CH3COOH (Acetic acid) + CH3-C(CH3)=CH2 (Isobutylene) CH3COOC(CH3)3 (Tert-Butyl Acetate)

5. Application
• Solvent • Coatings
• Paints • Adhesives
• Resins • Textiles
• Electronics industry • Sealing materials
• Agricultural products • Industrial cleaning agents
• Pharmaceutical intermediates

6. General packing:
In 180kg net iron drums
In isotank

7. Storage:
Store in a cool, dry and well-ventilated place, protect against physical damage 12 months
Shelf life: one year

8. Transportation information:
Class Number: 3 UN No: 1123 Packing group: II

9. Environmental gain:
1) VOC-Exempt:
The United States Environmental Protection Agency (EPA) lists it as: exempt from restricted volatile solvents
2) Non-HAP:
The United States Environmental Protection Agency (EPA) lists it as: non-hazardous air pollutants
3) Non-PBT:
According to TSCA, the US National Environmental Protection Agency (EPA) classified it as: Non-persistent, bio-accumulative and toxic substances
4) Non-ODC:
According to the Montreal Protocol, TBAC is not a controlled substance: ozone-depleting chemicals
5) Low toxicity:
Acute toxicity, LD50: 4100mg/kg (rat oral); >2g/kg (rabbit skin) LC50: >2230mg/m3 (rat inhalation, 4h)
6) Biodegradable:
50%, essentially biodegradable. (After 28 days in the prepared biodegradability test)