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71959

Sigma-Aldrich

Sodium sulfate

BioUltra, anhydrous, ≥99.0% (T)

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Synonym(s):
Disodium sulfate, Sodium sulphate, Sulfuric acid disodium salt
Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.26

grade

anhydrous

product line

BioUltra

assay

≥99.0% (T)

form

powder or crystals

impurities

insoluble matter, passes filter test
≤0.0005% total nitrogen (N)

loss

≤0.2% loss on ignition, 900 °C

pH

5.0-7.5 (25 °C, 1 M in H2O)

mp

884 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

2.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Li: ≤5 mg/kg
Mg: ≤20 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.020
λ: 280 nm Amax: 0.018

SMILES string

[Na+].[Na+].[O-]S([O-])(=O)=O

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

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This Item
SX0760ESX0760S4672
vibrant-m

71959

Sodium sulfate

Premium Grade
vibrant-m

SX0760E

Sodium sulfate

-
vibrant-m

SX0760

Sodium sulfate

-
vibrant-m

S4672

Sodium sulfite

Premium Grade
Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

assay

≥99.0% (T)

assay

≥99.0%

assay

≥99.0%

assay

≥98%

form

powder or crystals

form

crystals

form

crystals

form

powder or crystals

mp

884 °C (lit.)

mp

884 °C (lit.)

mp

884 °C (lit.)

mp

-

pH

5.0-7.5 (25 °C, 1 M in H2O)

pH

5.2-8.0 (20 °C, 50 g/L in H2O)

pH

5.2-8.0 (20 °C, 50 g/L in H2O)

pH

-

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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