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60508

Sigma-Aldrich

Potassium disulfite

BioUltra, ≥97.0% (RT)

Sinonimo/i:

Potassium metabisulfite, Potassium pyrosulfite

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About This Item

Formula condensata:
K2S2O5
Numero CAS:
16731-55-8
Peso molecolare:
222.32
Numero CE:
240-795-3
Numero MDL:
MFCD00167605
Codice UNSPSC:
12352302
ID PubChem:
57651772
NACRES:
NA.25

Nome Commerciale

BioUltra

Saggio

≥97.0% (RT)

Impurezze

insoluble matter, passes filter test

pH

2.5-4.5 (25 °C, 0.1 M in H2O)

Solubilità

H2O: 0.1 M at 20 °C, clear, colorless

Anioni in tracce

chloride (Cl-): ≤50 mg/kg

Cationi in tracce

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

Assorbimento

cut-off at 308 nm in H2O at 0.1 M

Stringa SMILE

[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
RWPGFSMJFRPDDP-UHFFFAOYSA-L

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Applicazioni

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.

Pittogrammi

Corrosion
GHS05

Avvertenze

Danger

Indicazioni di pericolo

H318

Consigli di prudenza

P280 - P305 + P351 + P338

Classi di pericolo

Eye Dam. 1

Rischi supp

EUH031

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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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
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Japanese journal of cancer research : Gann, 77(2), 118-124 (1986-02-01)
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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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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
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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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