| Product Name | P-Hydroxybenzoic acid |
| Synonyms | 4-Hydroxybenzoic acid;para-Hydroxybenzoic acid;PHBA;4-hydroxybenzoate |
| CAS | 99-96-7 |
| Molecular formula | C7H6O3 |
| Molecular Weight | 138.122 |
| EINECS | 202-804-9 |
| Physical and Chemical Properties | | Melting Point | 214.5 °C | | Density | 1.46 g/cm3 |
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| General Description | This product is white powder crystal, tasteless, odorless, and numb tongue when tasting. |
| Usage | This product can be used as preservative, dye, medicine and injection molding intermediate, and esterified with alcohol. It is also the main raw material of polymer liquid crystal polymer and the raw material of pesticide intermediate. |
| Packing | 25kgs/ bag |
| Storage condition | Stored in a cool, ventilated warehouse. Stay away from fire and heat. Storage should be kept separate from the oxidant. Equipped with corresponding varieties and quantities of fire equipment. The storage area shall be equipped with leakage emergency treatment equipment and suitable shelter materials. |
| Polymer Grade Specifications |
| Items | Specifications |
| Appearance | White crystalline powder |
| Content (dry basis), % | ≥99.6% |
| Melting Point | 214-217ºC |
| Odor | Odorless |
| Solubility | Clear and transparent |
| Drying loss | ≤0.2% |
| Color (Pt-Co) | ≤10 |
| Ash Content | ≤0.02% |
| Sulfate (as SO42-) | ≤0.01% |
| Chloride (as Cl-) | ≤0.005% |
| Phenol | ≤0.01% |
| Salicylic Acid | ≤0.02% |
| 4-Hydroxyisophthalic acid (HIPA) | ≤0.05% |
| Insoluble in Methanol % | ≤0.005% |
| Potassium (K+) | ≤0.0005% |
| Sodium (Na+) | ≤0.0005% |
| Iron (Fe) | ≤0.0005% |
| (Ca2++Mg2+) | ≤0.001% |
| Industrial Grade Specifications |
| Items | Specifications |
| Appearance | White crystalline powder |
| Content (dry basis), % | ≥99.0% |
| Melting Point | 212-216ºC |
| Odor | Odorless |
| Solubility | Clear and transparent |
| Drying loss | ≤0.5% |
| Color (Pt-Co) | ≤40 |
| Ash Content | ≤0.15% |
| Sulfate (as SO42-) | ≤0.05% |
| Chloride (as Cl-) | ≤0.02% |
| Phenol | ≤0.1% |
| Salicylic Acid | ≤0.1% |
Complaint
