Loading Port:Qingdao
Payment Terms:TT OR LC
Min Order Qty:-
Supply Capability:20000 m.t/month
product:Calcium hydroxide
cas no.:7778-77-0
purity:90-96%
packing:25kg/bag
Potassium dihydrogen phosphate
Molecular formula: KH2PO4
CAS: 7778-77-0
Appearance: white crystal powder
Properties of High Purity Hydrated Lime/Ca(OH)2 Calcium Hydroxide :
Colorless sifang crystals or white crystalloid powder. The relative density 2.338. Melting point 252.6 °C. Soluble in water (90 °C for improve g / 100ml canister water), become acidic aqueous solution, 1% linsuanerqingjia solution pH value is 4.6. Not soluble in alcohol. Have ChaoXie sex. Heating and 400 °C melted and transparent liquid, after cooling curing is not transparent glass shape partial potassium phosphate.
Use:
Analytics reagents, such as configuration standard solution, buffer a PH. Also used in the pharmaceutical industry, piezoelectric element and electric optical components production.
Details:
Test item | Specification | |
Reagent grade | Pharmaceutical grade | |
Appearance | Conform | Conform |
Assay [KH2PO4]/% | ≥99.5 | ≥99.0 |
Clarify degrees test | Conform | Conform |
Water insoluble/% | ≤0.002 | ≤0.005 |
Dry weightlessness /% | ≤0.2 | ≤0.3 |
Chloride (Cl)/% | ≤0.001 | ≤0.005 |
Sulfate (SO4)/% | ≤0.003 | ≤0.005 |
N/% | ≤0.001 | ≤0.002 |
Sodium (Na)/% | ≤0.02 | ≤0.05 |
Ferric (Fe)/% | ≤0.001 | ≤0.005 |
Arsenic (As) /% | ≤0.0005 | ≤0.002 |
Heavy metal (Pb)/% | ≤0.001 | ≤0.005 |
