Phenolsulfonic Acid
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Product Description
Phenolsulfonic Acid
Specification of Product
Product Name : Phenolsulfonic Acid
Another Name: 4-Hydroxybenzene Sulfonic Acid
Molecular Formula: C6H6O4S
Structure:
Molecular Weight: 174.17
Cas No.: 98-67-9
EC No.: 202-691-6
Package: 250Kg/ Drum, 4 Drum/Pallet, 20Mts/20'FCL
Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. They should be stored separately from oxidants and alkalis, and avoid mixed storage.
Product Quality Standard
Item | Ⅰ | Ⅱ | Ⅲ |
Appearance | Brown red liquid to solid | ||
Content, % | ≥ 65 | ≥ 75 | ≥ 95 |
Free Acid (Calculated as H2SO4), % | ≤ 1.0 | ≤ 1.5 | ≤ 2.0 |
Free Phenol, % | ≤ 1.5 | ≤ 1.2 | ≤ 1.0 |
Density (20°C) | 1.30-1.35 | 1.35-1.40 | 1.53-1.60 |
Iron ion, ppm | ≤ 30 | ≤ 30 | ≤ 30 |
Water Dissolution Test | Qualified | Qualified | Qualified |
Please note: Item Ⅱ & Item Ⅲ are temporarily out of production and cannot be provided.
Applications
1. Used for resin curing.
2. The most important additive in the acidic tin plating process.
3. It also has the function of acidic resin foaming,etc.