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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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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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Chloride(Cl)
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≤0.005
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≤0.001
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≤0.005
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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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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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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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