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hotline: 86-15076659665
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sodium dihydrogen phosphate anhydrous

molecular formula: nah2po4·2h2o
molecular weight: 156.01
cas no: 13472-35-0
properties: colorless rhombic crystal. relative density is 2.040 and melting point is 60℃. soluble in water and insoluble in alcohol.
uses: as analytical reagent and buffer agent. it can be used in preparing bacteria culture medium, in food, fermentation, leather, boiler water, and other industries.
standard: the maximum content of impurities is in percentage content

specifications/item

analytically pure-ar

chemically pure-cp

high purity

assay(nah2po4·2h2o)/%

≥99.0

≥98.0

≥98.0

ph value (50g/l,25℃)

4.2~4.6

4.2~4.6

4.2~4.6

clarity test

qualified

qualified

water insoluble matter

≤0.01

≤0.02

≤0.05

chloride(cl)

≤0.005

≤0.01

≤0.014

sulfate(so4)

≤0.005

≤0.01

≤0.25

nitrate(no3)

≤0.001

≤0.002

ammonium (nh4)

≤0.002

potassium (k)

≤0.02

≤0.1

iron (fe)

≤0.001

≤0.005

arsenic (as)

≤0.0002

≤0.0005

≤0.005

heavy metal (pb)

≤0.001

≤0.005

≤0.002

ammonia precipitate/%

≤0.01

≤0.02

fluoride(f) /%

≤0.005

packing: woven bag lined with plastic bag, kraft bag, or fiber drum, net weight is 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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