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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
Prezzi e disponibilità al momento non sono disponibili

Grado

reagent grade

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

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Certificati d'analisi (COA)

Lot/Batch Number
BCCL7201
BCCK6362
BCCH7590
BCCG4006
BCCF0593

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