Sodium sulfate

Name: Sodium sulfate
Brand: MM

anhydrous, coarse granules for analysis EMSURE^® ACS

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About This Item

Linear Formula:

Na₂SO₄

CAS Number:

7757-82-6

Molecular Weight:

142.04

NACRES:

NA.21

EC Index Number:

231-820-9

UNSPSC Code:

12352302

MDL number:

MFCD00003504

assay:

≥99.0% (acidimetric)

grade:

ACS reagent

form:

solid

solubility:

200 g/L

Product Name

Sodium sulfate, anhydrous, coarse granules for analysis EMSURE^® ACS

InChI

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

SMILES string

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

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

grade

ACS reagent

product line

EMSURE^®

assay

≥99.0% (acidimetric)

form

solid

potency

>2000 mg/kg LD₅₀, oral (Rat)

impurities

≤0.01% Insoluble matter

loss

≤0.5% loss on ignition, 800 °C

pH

5.2-8.0 (20 °C, 50 g/L in H₂O)

mp

884 °C (lit.)

solubility

200 g/L

density

2.68 g/mL at 25 °C (lit.)

bulk density

1400‑1600 kg/m³

anion traces

chloride (Cl^-): ≤0.001%
phosphate (PO₄^3-): ≤0.001%

cation traces

As: ≤0.0001%
Ca: ≤0.01%
Fe: ≤0.0005%
K: ≤0.002%
Mg: ≤0.001%
N: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

Quality Level

300

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Related Categories

Lab Chemicals

Salts

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Identity: passes test
Insoluble matter: ≤ 0.01 %
pH-value (5 %; water): 5.2 - 9.2
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.01 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.001 %
Loss on ignition (800 °C): ≤ 0.5 %
Particle size (250-2000 µm): ≥ 85 %
Corresponds to ACS

Application

Removal of Sodium Sulfate from Iron Phosphate: Sodium sulfate is also involved in methods for removing impurities from chemical compounds. A recent study focused on developing a method to remove sodium sulfate from iron phosphate, an essential process in the production of high-purity materials for various industrial applications. This research highlights the importance of sodium sulfate in refining chemical processes and improving the quality of industrial products (Li et al., Advances in Analytical Chemistry, 2022).

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c