V800328
Potassium disulfite
AR, ≥97%
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:
≥97%
Grade:
AR
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
AR
product line
Vetec™
assay
≥97%
form
powder
pH
3.0-4.5 (5% in water)
anion traces
chloride (Cl-): ≤0.005%
cation traces
Fe: ≤0.0005%, heavy metals (as Pb): ≤0.001%
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Legal Information
Vetec is a trademark of Merck KGaA, Darmstadt, Germany
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 1
Regulatory Information
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M Takahashi et al.
Japanese journal of cancer research : Gann, 77(2), 118-124 (1986-02-01)
Ethanol, potassium metabisulfite, formaldehyde and hydrogen peroxide were tested for tumor-promoting activity in a two-stage stomach carcinogenesis experiment. Male outbred Wistar rats were given N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) in the drinking water (100 mg/liter) and a diet supplemented with 10% sodium chloride
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
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
Carcinogenicity test of potassium metabisulfite in mice.
T Tanaka et al.
Ecotoxicology and environmental safety, 3(4), 451-453 (1979-12-01)
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
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