31268
Potassium disulfite
puriss. p.a., ≥96% (iodometric), powder
Synonym(s):
Potassium metabisulfite, Potassium pyrosulfite
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About This Item
Linear Formula:
K2S2O5
CAS Number:
Molecular Weight:
222.32
UNSPSC Code:
12352302
PubChem Substance ID:
EC Number:
240-795-3
MDL number:
Assay:
≥96% (iodometric)
Form:
powder
InChI key
RWPGFSMJFRPDDP-UHFFFAOYSA-L
InChI
1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
SMILES string
[K+].[K+].[O-]S(=O)S([O-])(=O)=O
grade
puriss. p.a.
assay
≥96% (iodometric)
form
powder
anion traces
chloride (Cl-): ≤50 mg/kg
cation traces
As: ≤1 mg/kg, Cu: ≤10 mg/kg, Fe: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤10 mg/kg
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signalword
Danger
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 1
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2
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D A Mathison et al.
Chest, 87(1 Suppl), 50S-54S (1985-01-01)
Several types of reactions to drugs and chemicals may precipitate or perpetuate asthmatic relapse. This review focuses on reactions to aspirin and sulfites. Approximately 40 percent of patients with rhinosinusitis, nasal polyps, and asthma and 5 to 10 percent of
E Pastorkova et al.
International journal of food microbiology, 161(3), 209-213 (2013-01-22)
This paper investigates the in vitro antimicrobial potential of 15 grape phenolic compounds of various chemical classes (phenolic acids, stilbenes and flavonoids) using the broth microdilution method against yeasts and acetic acid bacteria frequently occurring in deteriorated wine. Pterostilbene (MICs=32-128
S Raisuddin et al.
Food additives and contaminants, 8(6), 707-712 (1991-11-01)
The occurrence of aflatoxins in market betel nut samples was studied. It was observed that several betel nut samples were infested with aflatoxin-producing fungus, Aspergillus flavus. Out of 32 samples collected from various places, 12 were positive for aflatoxin. Aflatoxin
Carcinogenicity test of potassium metabisulfite in mice.
T Tanaka et al.
Ecotoxicology and environmental safety, 3(4), 451-453 (1979-12-01)
W H Yang et al.
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 133(9), 865-867 (1985-11-01)
Sulfites are widely used as preservatives in the food and pharmaceutical industries. In the United States more than 250 cases of sulfite-related adverse reactions, including anaphylactic shock, asthmatic attacks, urticaria and angioedema, nausea, abdominal pain and diarrhea, seizures and death
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