Information
Specification category:
Product No. | Product name | specifications |
1.03168.010 | Magnesium hydroxide | AR100g |
Characteristic:
Appearance and properties: White crystal or powder.
pH value: 9.5~10.5(H2O,aqueous suspension)
Relative density: 2.36(water=1)(20℃)
Melting point(℃): 350
Concentration: Pure
Solubility: Soluble in dilute sulfuric acid and ammonium salt solution.Almost insoluble in water(0.009g/L,18℃) and alcohol.
Technical indicators:
Item | AR | CP |
Assay[Mg(OH)2] | ≥98.0% | ≥98.0% |
Loss on ignition | 30%~33% | 30%~33% |
Soluble matter in water | ≤0.5% | -- |
Insoluble matter in HCl | ≤0.05% | ≤0.1% |
Chloride(Cl) | ≤0.02% | ≤0.05% |
Nitrate(NO3) | ≤0.02% | ≤0.03% |
Sulfate(SO4) | ≤0.02% | ≤0.2% |
Iron(Fe) | ≤0.002% | ≤0.01% |
Calcium(Ca) | ≤0.002% | ≤0.01% |
Heavy metals(as Pb) | ≤0.005% | -- |