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Merck
CN

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:
7758-09-0
Molecular Weight:
85.10
NACRES:
NA.21
PubChem Substance ID:
329749790
UNSPSC Code:
12352302
EC Number:
231-832-4
MDL number:
MFCD00011408
Assay:
97-100.5%
Form:
crystals
Solubility:
water: soluble 0.35 part
alcohol: slightly soluble

Key Documents

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Product Name

Potassium nitrite, meets analytical specification of FCC, 97-100.5%

InChI key

BXNHTSHTPBPRFX-UHFFFAOYSA-M

InChI

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

SMILES string

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

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

Quality Level

200

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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.

Biochem/physiol Actions

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

signalword

Danger

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

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCM4243
BCCK7376
BCCF5050
BCCB5947
BCBV5238

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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
Rasmus Aamand et al.
American journal of physiology. Heart and circulatory physiology, 297(6), H2068-H2074 (2009-10-13)
In catalyzing the reversible hydration of CO2 to bicarbonate and protons, the ubiquitous enzyme carbonic anhydrase (CA) plays a crucial role in CO2 transport, in acid-base balance, and in linking local acidosis to O2 unloading from hemoglobin. Considering the structural
R Weller et al.
Journal of the American Academy of Dermatology, 38(4), 559-563 (1998-04-29)
Nitric oxide is continually released from normal skin and has antimicrobial effects. An acidified nitrite cream releases supraphysiologic concentrations of nitric oxide and is fungicidal in vitro. The purpose of this study was to assess the efficacy of an acidified
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