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magnesium sulfate anhydrous

molecular formula: mgso4·7h2o
molecular weight: 246.48
cas no:10034-99-8
properties: colorless columnar or granular crystal with bitter and salty taste. relative density is 1.67. easily soluble in water, slightly soluble in ethyl alcohol and glyrecin, insoluble in acetone.
uses: as analytical reagent, precipitant for sulfate. it can also be used in pharmaceutical, printing and dyieng, papermaking, ceramic, and leather industries.
standard: maximum assay of impurities is in %

specification/item

analytically pure-ar

chemically pure-cp

high pure

assay (mgso4·7h2o) /% 

≥99.0

≥99.0

≥99.0

ph value(50g/l solution, 25℃)

5.0~8.0

5.0~8.0

5.0~8.0

clarity test

qualified

qualified

water insoluble matter

≤0.005

≤0.01

≤0.015

chloride (cl)

≤0.0005

≤0.001

≤0.01

arsenic (as)

≤0.0001

≤0.0002

≤0.0002

sodium (na)

≤0.005

≤0.05

calcium (ca)

≤0.02

≤0.05

manganese (mn)

≤0.001

≤0.005

iron (fe)

≤0.0005

≤0.001

≤0.0015

heavy metal (pb)

≤0.0005

≤0.001

≤0.001

packing: woven bag lined with plastic bag, kraft paper 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
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