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09978

Sigma-Aldrich

Ammonium sulfate

BioUltra, ≥99.0% (T)

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.26

product line

BioUltra

Quality Level

assay

≥99.0% (T)

form

crystals

impurities

insoluble matter, passes filter test

ign. residue

≤0.01% (as SO4)

loss

≤0.1% loss on drying, 110 °C

pH

5.0-6.0 (25 °C, 1 M in H2O)

mp

>280 °C (dec.) (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

1.77 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤50 mg/kg
phosphate (PO43-): ≤5 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.2 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤1 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤2 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤50 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤2 mg/kg
Sr: ≤5 mg/kg
Zn: ≤1 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.037
λ: 280 nm Amax: ≤0.030

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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Other Notes

The most commonly used salt for the fractional precipitation of proteins due to its solubility and effectiveness[63]; Protein crystallization[00]; Sepharose® chromatography of tRNAs using reverse salt gradients[01].

Legal Information

Sepharose is a registered trademark of Cytiva

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

Certificate of Analysis

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Certificate of Origin

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