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12654

Sigma-Aldrich

Potassium nitrite

meets analytical specification of FCC, 97-100.5%

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About This Item

Formule empirique (notation de Hill):
KNO2
Numéro CAS:
Poids moléculaire :
85.10
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Pureté

97-100.5%

Forme

crystals

Qualité

meets analytical specification of FCC

Impuretés

≤0.001% heavy metals (as Pb)

Pf

350 °C (dec.) (lit.)

Solubilité

water: soluble 0.35 part
alcohol: slightly soluble

Traces d'anions

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤200 mg/kg

Traces de cations

As: ≤1 mg/kg
Fe: ≤10 mg/kg
Pb: ≤4 mg/kg

Chaîne SMILES 

[K+].[O-]N=O

InChI

1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1

Clé InChI

BXNHTSHTPBPRFX-UHFFFAOYSA-M

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Application

Potassium nitrite has been used for determining the bacteriostatic and fungistatic activity of acidified nitrite. It has also been used as a supplement in buffer for investigating the impact of nitrite on nosocomial pathogens including C. difficile spores. Adulterants such as “Klear” and “Whizzies” contain potassium nitrite which masks tests for abused drugs in urine. Hence potassium nitrite is used along with Klear and Urine Luck for preparing adulterated urine for drug-of-abuse testing.

Actions biochimiques/physiologiques

Potassium nitrite is a strong oxidizing agent that enhances seeds to germinate without a pre-incubation period and without ethylene.

Pictogrammes

Flame over circleSkull and crossbonesEnvironment

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 3 Oral - Aquatic Acute 1 - Ox. Sol. 2

Code de la classe de stockage

5.1B - Oxidizing hazardous materials

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Agam Rao et al.
Antimicrobial agents and chemotherapy, 50(11), 3901-3904 (2006-10-27)
Exposure to pH 1 or 2 buffers or acidic gastric contents resulted in the killing of vancomycin-resistant Enterococcus sp., Klebsiella pneumoniae, Staphylococcus aureus, and Candida glabrata but not Clostridium difficile spores. Nitrite enhanced killing under acidic conditions, but significant killing
Ethylene, Nitrate and Nitrite Interactions in the Promotion of Dark Germination of Common Purslane Seeds.
<BIG>G. H. Egley</BIG>
Annals of Botany, 53, 833-840 (1984)
R Weller et al.
Journal of applied microbiology, 90(4), 648-652 (2001-04-20)
Nitric oxide is generated from sweat nitrite in the acidic environment of the skin surface and is thought to contribute to protection against infection. This study examined the sensitivity of Trichophyton mentagrophytes, T. rubrum, Candida albicans, Streptococcus pyogenes, Staphylococcus aureus
H P Til et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 35(3-4), 349-355 (1997-03-01)
In a previous subchronic oral toxicity study with potassium nitrite, hypertrophy of the adrenal zona glomerulosa was observed for all nitrite levels examined including the lowest level of 100 mg/litre. This present study was carried out, therefore, to establish a
Dorea I Reeser et al.
The journal of physical chemistry. A, 113(30), 8591-8595 (2009-09-02)
Glancing angle laser-induced fluorescence was used to follow the kinetics of chlorophyll loss at the air-salt water interface under the influence of visible radiation. Aqueous solutions of NaCl, NaBr, NaI, KNO(3), and NaNO(2) in a range of concentrations up to

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