Tom ntej: Potassium Hydrogen Phthalate CAS 877-24-7
Potassium hydrogen phthalate dawb crystals. Tus txheeb ze ntom ntom yog 1.636. Dissolve nyob rau hauv kwv yees li 12 qhov chaw ntawm dej txias thiab 3 qhov chaw ntawm boiling dej; Me ntsis soluble hauv ethanol. Lub pH ntawm 0.05M aqueous tov ntawm 25 ℃ yog 4.005. Decompose ntawm 295-300 ℃.
| Yam khoom | Specification |
| Boiling point | 98.5-99.5 ° C / 740mmHg (lit .) |
| Qhov ntom | 1.006 g / mL ntawm 20 ° C |
| Melting point | 295-300 ° C (txog.) (lit.) |
| PH | 4.00-4.02 (25.0 ℃ ± 0.2 ℃, 0.05M) |
| tiv taus | H2O: 100 mg/ml |
| Cia tej yam kev mob | Khaws ntawm +5 ° C rau + 30 ° C. |
Potassium hydrogen phthalate feem ntau yog siv rau kev ntsuas ntawm sodium hydroxide tus qauv kev daws teeb meem vim nws yooj yim kom tau txais cov khoom ntshiab los ntawm recrystallization, tsis muaj dej crystallization, tsis muaj hygroscopicity, yooj yim cia, thiab siab sib npaug; Nws kuj tuaj yeem siv rau kev ntsuas cov tshuaj acetic acid nrog perchloric acid (siv methyl violet ua qhov taw qhia).
Feem ntau ntim rau hauv 25kg / nruas, thiab kuj tuaj yeem ua pob customized.
Tom ntej: Potassium Hydrogen Phthalate CAS 877-24-7
Tom ntej: Potassium Hydrogen Phthalate CAS 877-24-7
