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1.05063

Potassium nitrate

Name: Potassium nitrate
Brand: MM

for analysis EMSURE^® ISO,Reag. Ph Eur

Synonym(s):

Potassium nitrate, Nitric acid potassium salt

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About This Item

Empirical Formula (Hill Notation):

KNO₃

CAS Number:

7757-79-1

Molecular Weight:

101.10

UNSPSC Code:

12352302

EC Index Number:

231-818-8

NACRES:

NA.21

MDL number:

MFCD00011409

Assay:

≥99.0% (alkalimetric)

Grade:

reagent grade

Form:

solid

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Properties

Quality Level

300

grade

reagent grade

agency

reag. ISO, reag. Ph. Eur.

product line

EMSURE^®

assay

≥99.0% (alkalimetric)

form

solid

potency

3015 mg/kg LD₅₀, oral (Rat)

pH

5.0-7.5 (20 °C, 50 g/L in H₂O)

mp

334 °C

bulk density

800 kg/m³

anion traces

chloride (Cl^-): ≤0.001%, iodate (IO₃^-): ≤0.0005%, nitrite (NO₂^-): ≤0.001%, phosphate (PO₄^3-): ≤0.0005%, sulfate (SO₄^2-): ≤0.003%

cation traces

Ca: ≤0.001%, Cu: ≤0.0001%, Fe: ≤0.0003%, Mg: ≤0.0015%, NH₄⁺: ≤0.001%, Na: ≤0.02%, Pb: ≤0.0001%, heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

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

InChI

1S/K.NO3/c;2-1(3)4/q+1;-1

InChI key

FGIUAXJPYTZDNR-UHFFFAOYSA-N

Description

Application

The scientific rationale and development of an optimized dentifrice for the treatment of dentin hypersensitivity.: This clinical study details the development of a dentifrice containing potassium nitrate, aimed at treating dentin hypersensitivity, showcasing the compound′s application in dental health products (Tavss et al., 2004).

Analysis Note

Assay (alkalimetric): ≥ 99.0 %
pH-value (5 %; water): 5.0 - 7.5
Chloride (Cl): ≤ 0.001 %
Iodate (IO₃): ≤ 0.0005 %
Nitrite (NO₂): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.003 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Cu (Copper): ≤ 0.0001 %
Fe (Iron): ≤ 0.0003 %
Mg (Magnesium): ≤ 0.0015 %
Na (Sodium): ≤ 0.02 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.0001 %
Corresponds to ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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pictograms

GHS03

signalword

Warning

hcodes

H272

pcodes

P210 - P220 - P280 - P370 + P378 - P501

Hazard Classifications

Ox. Sol. 3

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c