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Langfang Tianke Biotechnology Co., Ltd.
Langfang Tianke Biotechnology
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Sodium sulfate

Sodium sulfate

Molecular formula: Na2SO4
Molecular weight: 142.04
CAS NO:15124-09-1
Properties: white crystalline powder. Relative density is 2.68 and melting point is 884℃. Soluble in water and glycerin, insoluble in ethyl alcohol.
Uses: as analytical reagent, dehydrant, interfere inhibitor in atomic absorption spectrum analysis, accessory for drugs and foods.
Standard: maximum assay of impurities is in 百分比

Specification/item

Analytically pure-AR

Chemically pure-CP

High pure

Assay(Na2SO4) /百分比

≥99.0

≥98.0

≥99.0

PH value(50g/L solution, 25℃)

5.0~8.0

5.0~8.0

5.0~8.0

Clarity test

Qualified

Qualified

Qualified

Water insoluble matter

≤0.005

≤0.02

≤0.02

Loss on ignition

≤0.2

≤0.5

≤0.5

Chloride (Cl)

≤0.001

≤0.005

≤0.005

Phosphate (PO4)

≤0.001

≤0.002

Total nitrogen (N)

≤0.0005

≤0.001

≤0.002

Potassium (K)

≤0.01

Calcium (Ca)

≤0.002

≤0.005

Iron (Fe)

≤0.0005

≤0.001

≤0.001

Heavy metal (Pb)

≤0.0005

≤0.002

≤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.
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