molecular formula: KAl (SO4)2·12H2O
CAS: 7784-24-9
Appearance:
Colorless crystal powder
Properties:
Colorless transparent crystal or powder. Without odour, slightly sweet and have acerbity, convergence. In dry air weathering lose gesso, in damp air melting drips water. Soluble in glycerin, soluble in water, become acidic aqueous solution, hydrolysis reaction after aluminum hydroxide jelly precipitation. Insoluble in preparing acetone. ℃ 92.5 melting point.
Use:
Mainly used as the temperature cho-shui agglomerants, up purifying water quality function. Used for sizing agent, the papermaking industry with rosin emulsion cooperate for paper glue, improve the intensity of paper resistant to water. The pharmaceutical industry as preservative, astringent, astringent. Add dry "made, can be used as topical convergence hemostatic medicine; With a certain concentration of aqueous solution, and can be used to prevent rice dermatitis, Made of aluminum hydroxide, can be made into gastropathy medicine. Mixing together with green fodder, can be used for livestock disease prevention and cure.
Details:
Test item | Specification | |
Reagent grade | Pharmaceutical grade | |
Appearance | Conform | Conform |
Assay /% | ≥99.5 | ≥99.0 |
Clarify degrees test | Conform | Conform |
Water insoluble /% | ≤0.005 | ≤0.01 |
Chloride (Cl)/% | ≤0.0005 | ≤0.004 |
Ammonium (NH4)/% | ≤0.005 | ≤0.01 |
Arsenic (As)/% | ≤0.00005 | ≤0.0001 |
Sodium (Na)/% | ≤0.02 | ≤0.05 |
Ferric (Fe)/% | ≤0.001 | ≤0.002 |
Heavy metal (Pb)/% | ≤0.0005 | ≤0.002 |
