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1.06637

Supelco

Sodium sulfate

anhydrous, coarse granules for analysis EMSURE® ACS

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About This Item

Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-820-9

grade

ACS reagent

Quality Level

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 (PO43-): ≤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

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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Related Categories

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).

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

Legal Information

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

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Protocols

High resolution separations of low molecular weight heparin-daletparin and enoxaparin can be achived using Zenix SEC-100 columns.

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