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 Ammonium acetate,pharm grade   

Chemical formula: CH3COONH4
Molecular weight: 57.10

CAS NO.: 631-61-8

Properties: Deliquesc crystals or crystalline masses. Slight acetous odor. d 1.07. mp 114°(Zuffanti, loc. cit.). Tends to lose NH3. Sol in less than 1 part water; freely sol in alc; slightly sol in acetone. Very concd aq soln is slightly acid; a 0.5 molar aq soln has pH 7.0. Keep cool and tightly closed. LD i.v. in mice: 1.8 mg (NH4+)/20g (Welch).

        Items

Pharm grade

Assay

97.5%min

Appearance

white crysta

PH

6.7-7.3

Water insoluble matter

0.05% max

Sulfate(SO4)%

0.01% max

Chloride(Cl)

0.005% max

Ferrum(Fe)

0.005% max

Heavy Metal(as Pb)

0.005% max

USE: Preserving meats, dyeing, stripping; as a reagent in anal. chemistry, e.g., for determining Pb, Fe; separating PbSO4 from other sulfates.

PAKG: in 25kg net export worthy bag.

 
Time:2008-3-11  Views:2271
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