31481-M
Sodium sulfate
puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., anhydrous, ≥99.0%
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About This Item
InChI key
PMZURENOXWZQFD-UHFFFAOYSA-L
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
grade
ACS reagent, puriss. p.a.
agency
USP/NF, reag. ISO, reag. Ph. Eur.
vapor pressure
<0.1 hPa ( 20 °C)
assay
≥99.0%
form
crystalline
impurities
≤0.0005% heavy metals (by ICP-OES), ≤0.01% in water insoluble matters, ≤0.03% free alkali (as NaOH), ≤0.05% free acid (as H2SO4), ≤5 ppm total nitrogen (N)
loss
≤0.5% loss on ignition, 800 °C
pH
5.2-8.0 (20 °C, 5%)
density
2.68 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤10 ppm, phosphate (PO43-): ≤0.001%
cation traces
As: ≤0.0001%, Ca: ≤20 ppm, Fe: ≤5 ppm, K: ≤0.01%, Mg: ≤25 ppm
suitability
complies for appearance of solution
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Application
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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