grade
technical
assay
≥99%
impurities
≤0.005% heavy metals (as Pb), ≤0.1% free alkali (as NaOH), ≤0.2% free acid (as H2SO4)
loss
≤0.2% loss on drying, 130 °C
mp
884 °C (lit.)
density
2.68 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤200 mg/kg
cation traces
Fe: ≤50 mg/kg
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
Other Notes
A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.
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存储类别
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)