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60508

Sigma-Aldrich

Potassium disulfite

BioUltra, ≥97.0% (RT)

Sinônimo(s):

Potassium metabisulfite, Potassium pyrosulfite

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About This Item

Fórmula linear:
K2S2O5
Número CAS:
16731-55-8
Peso molecular:
222.32
Número CE:
240-795-3
Número MDL:
MFCD00167605
Código UNSPSC:
12352302
ID de substância PubChem:
57651772
NACRES:
NA.25

grau

reagent grade

linha de produto

BioUltra

Ensaio

≥97.0% (RT)

Impurezas

insoluble matter, passes filter test

pH

2.5-4.5 (25 °C, 0.1 M in H2O)

solubilidade

H2O: 0.1 M at 20 °C, clear, colorless

traços de ânion

chloride (Cl-): ≤50 mg/kg

traços de cátion

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤1000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

Absorção

cut-off at 308 nm in H2O at 0.1 M

cadeia de caracteres SMILES

[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

chave InChI

RWPGFSMJFRPDDP-UHFFFAOYSA-L

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Aplicação

Potassium disulfite (Potassium metabisulfite) may be use to study is antioxidant effects and ability to preserve food. Potassium disulfite may be used as an inhibitor of yeasts, bacteria, and fungi growth. Potassium metabisulfite may be used to study its potential toxicities in vivo.

Pictogramas

Corrosion
GHS05

Palavra indicadora

Danger

Frases de perigo

H318

Declarações de precaução

P280 - P305 + P351 + P338

Classificações de perigo

Eye Dam. 1

Perigos de suplementos

EUH031

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análise (COA)

Lot/Batch Number
BCCF0593
BCCC2728
BCBZ3375
BCBW1933
BCBV3523

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Bindu Nair et al.
International journal of toxicology, 22 Suppl 2, 63-88 (2003-10-14)
Sodium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Potassium Bisulfite, Ammonium Bisulfite, Sodium Metabisulfite, and Potassium Metabisulfite are inorganic salts that function as reducing agents in cosmetic formulations. All except Sodium Metabisulfite also function as hair-waving/straightening agents. In addition, Sodium Sulfite, Potassium
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
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
Luca Settanni et al.
Journal of bioscience and bioengineering, 114(6), 606-614 (2012-08-11)
In this work, the yeast ecology associated with the spontaneous fermentation of Grillo cultivar grapes from 10 vineyards was analyzed from grape harvest till complete consumption of must sugars. The microbiological investigation started with the plate count onto two culture
Ayse Yavuz-Kocaman et al.
Environmental and molecular mutagenesis, 49(4), 276-282 (2008-03-14)
Potassium metabisulfite (PMB) is used as an antimicrobial substance in many kinds of foods. In the present study, the effects of PMB on chromosome aberrations (CAs), sister chromatid exchanges (SCEs), and micronucleus (MN) formation in human lymphocytes and as well
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