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Anhydrous disodium hydrogen phosphate
Molecular formula: Na2HPO4
Molecular weight: 142
[Character] solution is weakly alkaline but insoluble in alcohol. It is easily weathered in the air and decomposes into sodium pyrophosphate at 250℃.
[To use]Used as analytical reagent and pH-based reagent. Used as boiler water softener, food additive and baking powder, etc. Used as penicillin, streptomycin culture agent. Also used in printing and dyeing auxiliaries, flame retardants, electroplating and other industries.
[Standard] The impurity content is measured in percentage
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Specification
Name of index
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High purity
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specified level
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Content (Na2HPO4)/%
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≥98.0
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Clarity test
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qualified
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PH(1%aqueous solution)
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8.5-10.0
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Water insolubles
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≤0.2
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Arsenic(As)
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≤0.0005
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Heavy metal(Pb)
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≤0.001
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Fluoride(F)
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≤0.005
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Lead
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≤0.004
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Loss on drying
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≤5.0
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[Packing] Plastic inside and outside woven, kraft paper bag or cardboard bucket, net weight 25kg. |
