60220-M
磷酸二氢钾 一元
buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%
别名:
prim.-磷酸钾, 磷酸二氢钾
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线性分子式:
KH2PO4
化学文摘社编号:
分子量:
136.09
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-913-4
MDL number:
Assay:
99.5-100.5%
Form:
crystalline
Solubility:
water: soluble (208 g/l at 20 °C (68 °F))
InChI key
GNSKLFRGEWLPPA-UHFFFAOYSA-M
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
grade
ACS reagent, anhydrous, puriss. p.a.
agency
reag. ISO, reag. Ph. Eur.
assay
99.5-100.5%
form
crystalline
impurities
≤0.001% total nitrogen (N)
loss
≤0.2% loss on drying, 105 °C
pH
4.2-4.5 (20 °C, 5%)
bp
>450 °C
mp
252.6 °C (lit.)
solubility
water: soluble (208 g/l at 20 °C (68 °F))
density
2.338 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤30 mg/kg
cation traces
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)
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General description
Potassium phosphate monobasic is a soluble salt employed as heterogeneous catalyst, additive, fungicide, buffer, and plant fertilizer.
Application
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.
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
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