?? ???
|
|
?? ??? ??
- ???
- 1340 °C
- ??
- 2.564 g/mL at 25 °C(lit.)
- ???
- 0Pa at 20℃
- ?? ??
- room temp
- ???
- ?: ???100mg/mL, ??, ??
- ??? ??
- ??
- ??? ??
- ??? ??
- Specific Gravity
- 2.564
- ??
- ???
- ??
- 100.00%. ?? ??
- ???
- 50.8g/100mL(25℃)
- ??
- Hygroscopic
- Merck
- 14,7660
- BCS Class
- 1
- ???
- ????. ?? ???, ??? ???? ????.
- CAS ??????
- 7778-53-2(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | C,Xi | ||
|---|---|---|---|
| ?? ???? ?? | 38-41-34 | ||
| ????? | 26-39-45-36/37/39 | ||
| ????(UN No.) | UN 1805 8/PG 3 | ||
| WGK ?? | 2 | ||
| RTECS ?? | TC8450000 | ||
| F ?????? | 8-10 | ||
| TSCA | Yes | ||
| HS ?? | 28352400 | ||
| ???? ?? | KE-34771 |
?? ??? C??? ??, ??, ??
??
? ??? ?? ???? ????? ???? ??; ? ???? ??????? ???? ?? ????? ?? ??; ? ? 100ml? ?? ???? 44.2(7.5°C), 49(23.3°C), 59.7(45.1°C).??
????, pH???, ?????, ???? ????? ??, ?????, ???, ??????, ???, ?????, ????, ???? ? ?? ??? ??? ?????, ??/???? ??, ??? ??? ???? ??/???? ???? ?????
? (1) ???? :「???????」? ???? (1)? ?? ??? ?, ? ?? 0.2% ????? ??.
??(2) ?? : ? ?? 1g? ? 100mL? ??? ?? ?? pH? 11.5～12.5??? ??.
??(3) ?? : ? ??? ?????? ?? ??? ?, ? ?? 4.0ppm ????? ??.
??(4) ? : 「???????」? ???? (2)? ?? ????(4.0ppm ??).
??(5) ??? : 「???????」? ???? (3)? ?? ????(1.0ppm ??).
??(6) ?? : ? ??? ?????? ?? ??? ?, ? ?? 1.0ppm ????? ??.
??(7) ???? : ? ?? 1g? ??? ?? 「?????」? ???? (8)? ?? ????(10ppm ??).
???
? ? ??? ??? ?? ? 2g? ??? ?? ? 50mL? ??? ??? ? 15℃? ????? 1N ???? ????(??? : ???????????? FF?? 3～4??).
1N ?? 1mL ＝ 106.13mg K3PO4
??? ??
white powder or crystals??? ??
Colorless orthorhombic crystals; deliquescent; density 2.564 g/cm3at 17°C;melts at 1,380°C; very soluble in water, 90 g/100mL at 20°c; aqueous solutions strongly alkaline; insoluble in alcohol.??
Potassium phosphate tribasic is a reagent with a very high buffering capacity. It is widely used in molecular biology, biochemistry, and chromatography, used for the extraction of keratohyalin protein from bovine tissue, to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.?? ??
The tribasic salt is produced by complete neutralization of phosphoric acid with potassium hydroxide, followed by evaporation and crystallization:H3PO4+ 3KOH →K3PO4+ 3H2O.?? ??
Potassium phosphate tribasic exhibits high catalytic property in trans esterification reactions. It has bactericidal activity.?? ??? ?? ?? ? ???
???
?? ??
?? ??? ?? ??
???( 528)?? ??
| ??? | ?? | ??? | ?? | ?? ? | ?? |
|---|---|---|---|---|---|
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