p-Tolyl acetate (CAS # 140-39-6)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
| UN IDs | NA 1993 / PIB |
| WGK Germany | 2 |
| RTECS | AJ 7570 000 |
| Toxicity | Tus mob qhov ncauj LD50 hauv nas tau tshaj tawm tias yog 1.9 (1.12-3.23) g/kg (Denine, 1973). Tus mob dermal LD50 hauv luav tau tshaj tawm tias yog 2.1 (1.24-3.57) g / kg (Denine, 1973). |
Taw qhia
P-cresol acetate, tseem hu ua ethoxybenzoate, yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm acetic acid p-cresol ester:
Zoo:
p-cresol acetate yog cov kua tsis muaj xim uas muaj ntxhiab tsw. Cov compound yog soluble hauv cov kuab tshuaj organic xws li ethanol thiab ethers, tab sis tsis tshua muaj dej.
Siv:
p-cresol acetate muaj ntau yam kev siv hauv kev lag luam. Nws yog ib qho kev lag luam hnyav uas tuaj yeem siv rau hauv cov coatings, adhesives, resins, thiab ntxuav. Nws kuj tseem siv tau los ua cov tshuaj tsw qab thiab cov musks, tso cai rau cov tsw qab thiab cov tshuaj tsw qab ntev dua.
Txoj kev:
Kev npaj ntawm p-cresol acetate tuaj yeem ua los ntawm transesterification. Ib txoj hauv kev yog kom sov thiab ua rau p-cresol nrog acetic anhydride nyob rau hauv lub xub ntiag ntawm cov kua qaub catalyst los tsim p-cresol acetate thiab acetic acid.
Cov ntaub ntawv kev nyab xeeb:
Acetic acid yog tshuaj lom thiab khaus rau cresol ester. Thaum siv lossis ua haujlwm, yuav tsum tau saib xyuas kom tiv thaiv daim tawv nqaij thiab qhov muag thiab tsis txhob sib cuag ncaj qha. Yog noj los yog nqus tau, nrhiav kev kho mob tam sim ntawd. Nws yuav tsum tau muab cia rau hauv qhov chaw txias, qhov cua thiab qhov chaw qhuav, kom deb ntawm hluav taws thiab oxidizers, kom ntseeg tau tias kev siv nyab xeeb.
