4-Hydroxyvalerophenone (CAS # 2589-71-1)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| WGK Germany | 3 |
| HS Code | 29182900 ib |
Taw qhia
P-hydroxyvalerone yog ib qho organic compound. Cov hauv qab no yog cov lus qhia ntxaws txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm p-hydroxypenterone:
Zoo:
P-hydroxyvalerone yog cov kua xim tsis muaj xim nrog lub cim aromatic saj. Nws tuaj yeem yaj los ntawm dej thiab ntau cov kuab tshuaj organic xws li ethanol thiab ether.
Siv:
P-hydroxyvalerone yog siv dav hauv kev lag luam tshuaj. Nws yog ib qho hnyav hnyav thiab feem ntau siv rau hauv kev npaj cov xim, inks thiab varnishes. P-hydroxypentanone kuj tseem siv tau los ua cov khoom siv hluavtaws rau cov tshuaj tsw qab, xws li tshuaj tsw qab thiab tsw.
Txoj kev:
Muaj ntau txoj hauv kev los npaj p-hydroxypenterone. Ib txoj hauv kev uas nquag siv yog kom tau txais p-hydroxypentanone los ntawm acid-catalyzed cov tshuaj tiv thaiv ntawm benzoic acid thiab acetone. Lwm txoj kev yog tau los ntawm transesterification ntawm benzoic acid thiab acetone, ua raws li los ntawm acid hydrolysis.
Cov ntaub ntawv kev nyab xeeb:
P-hydroxyvalerone yog cov kua hluav taws xob uas nws cov vapors tuaj yeem tsim cov nplaim taws lossis tawg sib xyaw nrog huab cua. Thaum tuav thiab siv, kev tiv thaiv hluav taws yuav tsum tau ua thiab tiv thaiv cov nplaim taws thiab qhov chaw kub siab. P-hydroxyvalerone muaj qhov ua rau khaus thiab ua rau lub qhov muag thiab tawv nqaij, thiab kev sib cuag ncaj qha yuav tsum raug zam. Cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes thiab tsom iav yuav tsum hnav thaum siv.
