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31481

Sigma-Aldrich

Sulfato de sódio

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

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About This Item

Fórmula linear:
Na2SO4
Número CAS:
Peso molecular:
142.04
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de substância PubChem:
NACRES:
NA.22

grau

ACS reagent
puriss. p.a.

Agency

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

Ensaio

≥99.0%

Formulário

crystalline

Impurezas

≤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)

perda

≤0.5% loss on ignition, 800 °C

pH

5.2-8.0 (20 °C, 5%)

pf

884 °C (lit.)

densidade

2.68 g/mL at 25 °C (lit.)

traços de ânion

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

traços de cátion

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

adequação

complies for appearance of solution

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

[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

chave InChI

PMZURENOXWZQFD-UHFFFAOYSA-L

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Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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