12648

Potassium nitrate

puriss., meets analytical specification of Ph Eur, BP, USP, FCC, E252, 99.0-100.5%

• Fórmula empírica (Notação de Hill): KNO₃
• Número CAS: 7757-79-1
• Peso molecular: 101.10
• Número CE: 231-818-8
• Número MDL: MFCD00011409
• Código UNSPSC: 12352302
• ID de substância PubChem: 329749787
• NACRES: NA.21
• Ensaio: 99.0-100.5%
• Formulário: powder or crystals

Propriedades

• grau: puriss.
• Nível de qualidade: 100
• Ensaio: 99.0-100.5%
• Formulário: powder or crystals
• qualidade: meets analytical specification of Ph Eur, BP, USP, FCC, E252
• Impurezas: acidity or alkalinity, complies; reducing matter, complies; residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤0.005% ammonium (NH₄)
• perda: ≤0.5% loss on drying, 105 °C
• pH: 5-8 (20 °C, 5%)
• pf: 334 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤10 mg/kg; nitrite (NO₂^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• traços de cátion: As: ≤1 mg/kg; Ca: ≤50 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Na: ≤1000 mg/kg; Pb: ≤4 mg/kg; Zn: ≤10 mg/kg
• adequação: complies for appearance of solution
• cadeia de caracteres SMILES: [K+].[O-][N+]([O-])=O
• InChI: 1S/K.NO3/c;2-1(3)4/q+1;-1
• chave InChI: FGIUAXJPYTZDNR-UHFFFAOYSA-N

Descrição

Descrição geral

Potassium nitrate is colorless potassium salt having rhombic crystals. It is an oxidizing agent. In nature it is found as saltpeter. It can be prepared by reacting potassium carbonate/ hydroxide with nitric acid or by the reaction of sodium nitrate with potassium chloride.1 It can be prepared by combining ammonium nitrate and potassium hydroxide under hot conditions.
Potassium nitrate can find applications as an oxidizer, which can be prepared by combining ammonium nitrate and potassium hydroxide under hot conditions.

Aplicação

Potassium nitrate may be employed for the following studies:

• Preparation of gun powder, ceramics, glass, dyeing and printing.1
• As oxidizing agent in the fireworks.1
• Preparation of potassium nitrite.1
• As desensitizing agent for tooth hypersensitivity.
• As phase change material for the preparation of nanofluids with phase change behavior.

Informações de segurança

• Pictogramas: GHS03
• Palavra indicadora: Warning
• Frases de perigo: H272
• Declarações de precaução: P210 - P220 - P280 - P370 + P378 - P501
• Classificações de perigo: Ox. Sol. 3
• Código de classe de armazenamento: 5.1B - Oxidizing hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable