Information
Specification category:
Product No. | Product name | specifications |
1.19280.010 | Methyl 4-hydroxybenzoate | CP100g |
|
Characteristic:
Appearance and properties:Colorless crystals or white crystalline powder, odorless or slight pungent odor.
Melting point(℃): 125-128
Boiling point(℃): 270-280(Decomposition)
Concentration: pure
Solubility: disoluble in water,Slightly soluble in Benzene, carbon tetrachloride, soluble in alcohol, ether, acetone.
Technical indicators:
Item | AR | CP |
Assay(C8H8O3) | ≥99.0% | ≥98.5% |
Melting point(℃) | 126~128 | 125~128 |
Solubility in dthanol | Pass | ---- |
pH value(50g/L,25℃) | 4.0~7.0 | 4.0~7.0 |
Residue on ignition (as SO4) | ≤0.05% | ≤0.1% |
Chloride(Cl) | ≤0.001% | ≤0.001% |
Sulfate(SO4) | ≤0.005% | ≤0.01% |
Iron(Fe) | ≤0.005% | -- |