Sigma-Aldrich 12619 Potassium disulfite puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide 1 kg
Kategori
Marka
Stok Kodu
LB.SA.12619-1KG
Kısa Bilgi
Synonym(s): Potassium metabisulfite, Potassium pyrosulfite Linear Formula: K2S2O5 CAS Number: 16731-55-8 Molecular Weight: 222.32 EC Number: 240-795-3 MDL number: MFCD00167605 PubChem Substance ID: 329749774 NACRES: NA.21
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Sigma-Aldrich 12619 Potassium disulfite |
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Synonym(s): Potassium metabisulfite, Potassium pyrosulfite
Linear Formula: K2S2O5
CAS Number: 16731-55-8
Molecular Weight: 222.32
EC Number: 240-795-3
MDL number: MFCD00167605
PubChem Substance ID: 329749774
NACRES: NA.21 |
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PROPERTIES
grade puriss.
Quality Level 100
Assay 95.0-101.0% (iodometric)
form powder
quality meets analytical specification of Ph.Eur., BP, NF, FCC, E224
impurities
organic volatile impurities, complies (GC)
residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.08% thiosulfate (S2O3)
51.8-57.6% sulfur dioxide
pH 3.5-4.5 (20 °C, 5%)
anion traces
chloride (Cl-): ≤100 mg/kg
cation traces
As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Se: ≤5 mg/kg
Zn: ≤20 mg/kg
suitability in accordance for appearance of solution
SMILES string [K+].[K+].[O-]S(=O)S([O-])(=O)=O
InChI 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key RWPGFSMJFRPDDP-UHFFFAOYSA-L |
