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molecular formula: ch3coonh4
molecular weight: 77.08
cas no : 631-61-8
properties: colorless or white lumpy crystal with a little acetic acid odor. relative density is 1.17 and melting point is 114℃. very easily soluble in water, easily soluble in ethyl alcohol, slightly solbule in acetone.
standard: maximum assay of impurities is in %
specification
item |
analytically pure-ar
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chemically pure-cp
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high purity
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industrial grade
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assay(ch3coonh4)
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≥98.0
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≥97.0
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97.5~101.0
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≥98.0
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ph value
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—
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—
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6.7-7.3
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qualified
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clarity test
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qualified
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qualified
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qualified
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|
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water insoluble matter
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≤0.005
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≤0.01
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0.05
|
|
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ignition residue (sulfate)
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≤0.005
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≤0.01
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—
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|
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chloride(cl)
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≤0.005
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≤0.001
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≤0.005
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|
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sulfate(so4)
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≤0.002
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≤0.005
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≤0.01
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≤0.01
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nitrate(no3)
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≤0.001
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－
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－
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|
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phosphate(po4)
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≤0.0005
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－
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－
|
|
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magnesium (mg)
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≤0.0004
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≤0.001
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－
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|
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calcium (ca)
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≤0.001
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≤0.002
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－
|
|
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iron (fe)
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≤0.0005
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≤0.001
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≤0.0005
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≤0.005
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heavy metal (pb)
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≤0.0005
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≤0.001
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≤0.0005
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≤0.005
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potassium permanganate-reducing material(hcooh)
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≤0.01
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≤0.01
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－
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uses: as analytical reagent, chromatograph analysis reagent, buffer agent, clinical reagent, and etc.
packing: woven bag lined with plastic bag, kraft bag, or fiber drum, net weight is 25kg.
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