Ammonium sulfate

Ammonium sulfate has been used in the preparation of ′Blue Silver′ colloidal Coomassie stain for proteins. Ammonium sulfate may be used for the precipitation or fractionation of proteins or for purification of antibodies. It is also useful for crystallographic analysis of nucleic acids and proteins. (Molecular Biology Grade)

State of matter	Solid
Solubility (20°C)	760 g/L (H₂O)
Melting point	280°C (dec.)
Formula	(NH₄)₂SO₄
M	132.14 g/mol
CAS-No.:	7783-20-2
HS-No.:	31022100
EC-No.:	231-984-1
Storage:	RT
LGK:	10 - 13
Disposal:	14
WGK:	1
Specification
DNases/RNases/Proteases	not detectable
Assay (titr.)	min. 99.5 %
pH (5 %; H₂O; 20°C)	5.0 - 6.0
Chloride	max. 0.001 %
Nitrate	max. 0.001 %
Phosphate	max. 0.0005 %
As	max. 0.0001 %
Ca	max. 0.001 %
Cu	max. 0.0005 %
Fe	max. 0.0005 %
K	max. 0.002 %
Mg	max. 0.0005 %
Na	max. 0.002 %
Pb	max. 0.0005 %
Zn	max. 0.0002 %

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Ammonium sulfate

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Ammonium sulfate

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Deutsche Beschreibung

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