Description
4-Hydroxybenzenesulfonic acid
4-Hydroxybenzenesulfonic acid Details
Product Name: 4-Hydroxybenzenesulfonic acid
CAS No.: 98-67-9
Molecular Formula: C6H6O4S
Molecular Weight: 174.17
4-Hydroxybenzenesulfonic acid Typical Properties
Test item
Specification
Appearance
Brown-red transparent liquid
Assay
≥65.00％
Free acid
≤3.0%
Free phenol
≤1.2%
Fe
≤100ppm
Sulfur dioxide
≤100ppm
Density(20℃）
1.32-1.36
4-Hydroxybenzenesulfonic acid Storage
Keep container tightly closed in a dry and well-ventilated place. Store in cool place.
4-Hydroxybenzenesulfonic acid Packaging
1.5MT/IBC drum
4-Hydroxybenzenesulfonic acid Application:
Used as the most important additive in acid tin plating process, it also has the function of acid resin foaming.
Used as curing agent at room temperature for casting resin.
