12654
Potassium nitrite
meets analytical specification of FCC, 97-100.5%
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About This Item
Empirical Formula (Hill Notation):
KNO2
CAS Number:
Molecular Weight:
85.10
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-832-4
MDL number:
Assay:
97-100.5%
Form:
crystals
Solubility:
water: soluble 0.35 part, alcohol: slightly soluble
Quality Level
assay
97-100.5%
form
crystals
quality
meets analytical specification of FCC
impurities
≤0.001% heavy metals (as Pb)
mp
350 °C (dec.) (lit.)
solubility
water: soluble 0.35 part, alcohol: slightly soluble
anion traces
chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤200 mg/kg
cation traces
As: ≤1 mg/kg, Fe: ≤10 mg/kg, Pb: ≤4 mg/kg
SMILES string
[K+].[O-]N=O
InChI
1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1
InChI key
BXNHTSHTPBPRFX-UHFFFAOYSA-M
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.
Biochem/physiol Actions
Potassium nitrite is a strong oxidizing agent that enhances seeds to germinate without a pre-incubation period and without ethylene.
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Aquatic Acute 1 - Ox. Sol. 2
Storage Class
5.1B - Oxidizing hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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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
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)
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