Merck
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A2939

Sigma-Aldrich

Ammonium sulfate

BioXtra, ≥99.0%

Synonym(s):
Mascagnite
Linear Formula:
(NH4)2SO4
CAS Number:
Molecular Weight:
132.14
EC Number:
MDL number:
eCl@ss:
38030408
PubChem Substance ID:
NACRES:
NA.25

product line

BioXtra

Quality Level

Assay

≥99.0%

form

powder or crystals

impurities

Insoluble matter, passes filter test

ign. residue

<0.01% (as SO4)

loss

≤1.0% loss on drying, 110°C

pH

5.0-6.0 (20 °C, 1 M in H2O)

mp

>280 °C (dec.) (lit.)

solubility

H2O: 1 M, clear, colorless

density

1.77 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.001%
phosphate (PO43-): ≤0.0005%

cation traces

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0001%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤0.0002%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0002%
Sr: ≤0.0005%
Zn: ≤0.0001%

absorption

≤0.030 at 280 in H2O at 1 M
≤0.037 at 260 in H2O at 1 M

SMILES string

N.N.OS(O)(=O)=O

InChI

1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI key

BFNBIHQBYMNNAN-UHFFFAOYSA-N

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form

powder or crystals

form

powder

form

powder

form

powder or crystals

impurities

Insoluble matter, passes filter test

impurities

-

impurities

≤0.005% Insolubles

impurities

-

pH

5.0-6.0 (20 °C, 1 M in H2O)

pH

5.0-6 (25 °C, 132 g/L)

pH

5.0-6 (25 °C, 132 g/L)

pH

5-6 (25 °C, 132 g/L)

mp

>280 °C (dec.) (lit.)

mp

>280 °C (dec.) (lit.)

mp

>280 °C (dec.) (lit.)

mp

>280 °C (dec.) (lit.)

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 200 gm + 300 mL g/mL

solubility

H2O: 0.667 g/mL

solubility

water: soluble 132 g/L at 20 °C

Application

Ammonium sulfate has been used as an additive in salting-out procedure to prepare the g-globulin fraction. It is also used as a component in synthetic minimal dextrose (SD) liquid medium.

Biochem/physiol Actions

Ammonium sulfate ((NH4)2SO4) is mainly used as a soil fertilizer. It is also used as a wood preservative. This inorganic salt plays a role in flame retardant chemicals.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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