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anhydrous disodium hydrogen phosphate

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

          specification

name of index

high purity

specified level

content (na2hpo4)/%

≥98.0

clarity test

qualified

ph(1%aqueous solution)

8.5-10.0

water insolubles

≤0.2

arsenic(as)

≤0.0005

heavy metal(pb)

≤0.001

fluoride(f)

≤0.005

lead

≤0.004

loss on drying

≤5.0

[packing] plastic inside and outside woven, kraft paper bag or cardboard bucket, net weight 25kg.

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langfang tianke biotechnology co., ltd.
add: sanghang industrial park, dacheng county,
hebei, china
tel: 86-15076659665 manager ma
fax: 86-316-5569332 
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