13459
Sodium metabisulfite
puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E223, dry, 97-100.5%
Synonym(s):
Sodium disulfite, Sodium pyrosulfite
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About This Item
grade
puriss.
Quality Segment
assay
97-100.5%
form
powder or crystals
quality
dry, meets analytical specification of Ph. Eur., BP, NF, FCC, E223
composition
SO2, 65.0-67.4%
impurities
residue of solvents, complies, ≤0.02% thiosulfate (S2O3)
pH
3.5-5.0 (20 °C, 5%)
mp
>300 °C (lit.)
anion traces
chloride (Cl-): ≤100 mg/kg
cation traces
As: ≤2 mg/kg, Cu: ≤10 mg/kg, Fe: ≤10 mg/kg, Hg: ≤1 mg/kg, Pb: ≤2 mg/kg, Se: ≤5 mg/kg, Zn: ≤10 mg/kg
suitability
complies for appearance of solution
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
HRZFUMHJMZEROT-UHFFFAOYSA-L
General description
Application
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
13459-1KG-R:4.548173921617E12 + 13459-5KG-R:4.548173921631E12 + 13459-500G-R:4.548173921624E12
jan
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