|
molecular formula: k2hpo4·3h2o
molecular weight: 228.22
cas no: 16788-57-1
properties: white crystal. soluble in water and slightly soluble in alcohol.
uses: as analytical reagent, pharmaceutical and boiler water treatment, raw material for food swelling agent, seasoner, bacteria culture medium, ph regulator, and etc.
standard: the maximum content of impurities is in percentage content
| specifications/item |
analytically pure-ar
|
chemically pure-cp
|
|
assay(k2hpo4·3h2o) /%
|
≥99.0
|
≥97.0
|
|
clarity test
|
qualified
|
qualified
|
|
water insoluble matter
|
≤0.01
|
≤0.03
|
|
chloride(cl)
|
≤0.002
|
≤0.005
|
|
sulfate(so4)
|
≤0.01
|
≤0.03
|
|
nitrate(no3)
|
≤0.001
|
≤0.003
|
|
sodium (na)
|
≤0.05
|
≤0.10
|
|
magnesium (mg)
|
≤0.001
|
≤0.001
|
|
iron (fe)
|
≤0.001
|
≤0.003
|
|
arsenic (as)
|
≤0.0001
|
≤0.0003
|
|
heavy metal (pb)
|
≤0.001
|
≤0.003
|
packing: woven bag lined with plastic bag, kraft bag, or fiber drum, net weight is 25kg.
|