- Name: P-Hydroxybenzoic acid
- CAS No.: 99-96-7
- Appearance: White crystalline powder
- Purity/Assay: ≥99%
- Grade: Food grade
- Package: 25kg/bag
p-Hydroxybenzoic acid CAS 99-96-7
Description
P-hydroxybenzoic acid Quick Details
Chemical Name: P-hydroxybenzoic acid
CAS No.: 99-96-7
Molecular Fomula: H8N2O8S2
Molecular weight: 228.2
Molecular Structure:
Appearance: White crystalline powder
Properties
| Item | Standard |
| Appearance | White crystalline powder |
| Purity (on dry base) | ≥99% |
| Melting point | 213-216℃ |
| Odor | Odorless |
| Solubility | Clear and Transparent |
| Loss on drying | ≤0.50% |
| Color（pt-co） | ≤40 |
| Ash | ≤0.15% |
| Sulfate（SO4 ）2- | ≤0.05% |
| Chloride（Cl -） | ≤0.02% |
| Phenol | ≤0.1% |
| Salicylic Acid | ≤0.1% |
Usage
(1)Used as analytical reagent, photographic fixative and reducing agent.
(2)Used as food preservative, oxidant and initiator of polymer.
(3)It is used in chemical industry as raw material for manufacturing persulfate and hydrogen peroxide, polymerization promoter for organic polymers and initiator for polymerization of vinyl chloride monomers.The oil and soap industry is used as a bleaching agent.It is also used in corrosion agent of metal plate and oil recovery.Food grade used as wheat modifier, beer yeast anti – mildew agent.
(4)Determination and determination of manganese, iron and steel analysis, oxidant.
Packaging and Shipping
Packing: 25kg/bag
Storage
Stored in cool dry and ventilated warehouse away from oxidants