60220-M

Fosfato de potássio

buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%

• Sinônimo(s): Di-hidrogenofosfato de potássio, Fosfato de potássio prim., Fosfato monopotássico
• Fórmula linear: KH₂PO₄
• Número CAS: 7778-77-0
• Peso molecular: 136.09
• Número CE: 231-913-4
• Número MDL: MFCD00011401
• Código UNSPSC: 12352302
• ID de substância PubChem: 329758828
• NACRES: NA.21

Propriedades

• grau: ACS reagent; anhydrous; puriss. p.a.
• Agency: reag. ISO; reag. Ph. Eur.
• Ensaio: 99.5-100.5%
• forma: crystalline
• Impurezas: ≤0.001% total nitrogen (N)
• perda: ≤0.2% loss on drying, 105 °C
• pH: 4.2-4.5 (20 °C, 5%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• pb: >450 °C
• pf: 252.6 °C (lit.)
• densidade: 2.338 g/mL at 25 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• traços de cátion: As: ≤0.5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤15 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg; heavy metals: ≤0.001% (by ICP-OES)
• cadeia de caracteres SMILES: [K+].OP(O)([O-])=O
• InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• chave InChI: GNSKLFRGEWLPPA-UHFFFAOYSA-M

Descrição

Descrição geral

Potassium phosphate monobasic is a soluble salt employed as heterogeneous catalyst, additive, fungicide, buffer, and plant fertilizer.

Aplicação

Potassium phosphate monobasic can be used as a catalyst:

• In the regioselective monobromination of aralkyl ketones to synthesize monobrominated ketones.
• To synthesize acridine-1,8-diones and hexahydroquinolines via Hantzsch type reaction.

It can also be used as an additive in the oxidation of alcohols to aldehydes. The role of KH₂PO₄ was to regulate the pH of the solution, which affected the rate at which hydroxyl radicals were generated. As a result, the reaction′s selectivity was improved.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable