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31481

Sigma-Aldrich

Natriumsulfat

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.0%

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About This Item

Lineare Formel:
Na2SO4
CAS-Nummer:
7757-82-6
Molekulargewicht:
142.04
EG-Nummer:
231-820-9
MDL-Nummer:
MFCD00003504
UNSPSC-Code:
12352302
PubChem Substanz-ID:
329753782
NACRES:
NA.22

Qualität

ACS reagent
puriss. p.a.

Agentur

USP/NF
reag. ISO
reag. Ph. Eur.

Assay

≥99.0%

Form

crystalline

Verunreinigungen

≤0.0005% heavy metals (by ICP-OES)
≤0.0005% total nitrogen (N)
≤0.01% in water insoluble matters
≤0.03% free alkali (as NaOH)
≤0.05% free acid (as H2SO4)

Verlust

≤0.5% loss on ignition, 800 °C

pH-Wert

5.2-8.0 (20 °C, 5%)

mp (Schmelzpunkt)

884 °C (lit.)

Dichte

2.68 g/mL at 25 °C (lit.)

Anionenspuren

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

Kationenspuren

As: ≤1 mg/kg
Ca: ≤20 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Mg: ≤25 mg/kg

Eignung

complies for appearance of solution

Lagertemp.

2-8°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

InChIKey

PMZURENOXWZQFD-UHFFFAOYSA-L

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Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

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