磷酸钾二元 一元

KH₂PO₄

136.09

231-913-4

MFCD00011401

329758828

NA.21

Potassium phosphate is widely used in buffers to prepare biological samples and examine biological interactions.

Potassium phosphate monobasic has been used:

• to prepare the working luminol solution to study the prooxidant activity in the chemiluminescent system luminol–H₂O₂
• in phosphate buffer saline (PBS) to culture embryonic stem cells (ESCs) and generate embryoid bodies
• in PBS to prepare polydimethylsiloxane (PDMS) substrate

100

ACS reagent
anhydrous
puriss. p.a.

reag. ISO
reag. Ph. Eur.

99.5-100.5%

crystalline

≤0.001% total nitrogen (N)

≤0.2% loss on drying, 105 ℃

4.2-4.5 (20 ℃, 5%)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

252.6 ℃ (lit.)

water: 0.5 g/10 mL, clear, colorless to light yellow

2.338 g/mL at 25 ℃ (lit.)

chloride (Cl^-): ≤5 mg/kg
sulfate (SO₄^2-): ≤30 mg/kg

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)

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

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

GNSKLFRGEWLPPA-UHFFFAOYSA-M

1, 2.5 kg in poly bottle
500 g in poly bottle

11 - Combustible Solids

WGK 1