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ammonium chloride

molecular formula: nh4cl
molecular weight: 53.49
cas no: 12125-02-9
properties: colorless cubic crystal or white crystal with salty and slightly bitter taste. relative density is 1.527. soluble in water and grycerin, slightly soluble in ethyl alcohol.
uses: in analytical reagent, welding of metals, electroplating, tanning, dry battery, and etc.
standard: maximum assay of impurities is in %

specification/item

analytically pure-ar

chemically pure-cp

high pure

assay (nh4cl) /%

≥99.5

≥98.5

≥99.0

ph(50g/l solution 25℃)

4.5~5.5

4.5~5.5

clarity test

qualified

qualified

water insoluble matter

≤0.005

≤0.01

ignition residue (as sulfate)

≤0.02

≤0.05

   ≤ 0.1

sulfate (so4)

≤0.005

≤0.005

≤ 0.02

phosphate (po4)

≤0.0005

≤0.001

≤0.005

sodium (na)

≤0.005

magnesium (mg)

≤0.001

≤0.002

potassium (k)

≤0.005

calcium (ca)

≤0.001

≤0.002

≤0.005

iron (fe)

≤0.0005

≤0.001

≤0.005

heavy metal (pb)

≤0.001

arsenic (as)

≤0.0005

drying loss

≤0.5

packing: woven bag lined with plastic bag, kraft bag and 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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