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mankhwala

p-Tolyl acetate(CAS#140-39-6)

Chemical Property:

Molecular Formula C9H10O2
Misa ya Molar 150.17
Kuchulukana 1.047g/mLat 25°C(lit.)
Melting Point 48.5 °C
Boling Point 210-211°C(kuyatsa)
Pophulikira 194°F
Nambala ya JECFA 699
Kusungunuka kwamadzi 1.195g/L pa 25 ℃
Kusungunuka Zosasungunuka m'madzi
Kuthamanga kwa Vapor 21.864Pa pa 25 ℃
Maonekedwe ufa kuti mtanda uchotse madzi
Specific Gravity 1.052 (20/4 ℃)
Mtundu Zoyera kapena Zopanda Mtundu mpaka Zoyera kapena Zopanda mtundu
Mkhalidwe Wosungira Osindikizidwa muuma, Kutentha Kwapachipinda
Refractive Index n20/D 1.501(lit.)
Zakuthupi ndi Zamankhwala Malo Owira: 210 - 211kachulukidwe: 1.047

refractive index: 1.5

Maonekedwe: madzi opanda mtundu

Gwiritsani ntchito Amagwiritsidwa ntchito ngati zonunkhira

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xn - Zowopsa
Zizindikiro Zowopsa R22 - Zowopsa ngati zitamezedwa
R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
Ma ID a UN NA 1993 / PGIII
WGK Germany 2
Mtengo wa RTECS AJ7570000
Poizoni Pakamwa pakamwa LD50 mu makoswe adanenedwa kuti ndi 1.9 (1.12-3.23) g / kg (Denine, 1973). Acute dermal LD50 mu akalulu adanenedwa kuti ndi 2.1 (1.24-3.57) g/kg (Denine, 1973).

 

Mawu Oyamba

P-cresol acetate, yomwe imadziwikanso kuti ethoxybenzoate, ndi organic compound. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha acetic acid p-cresol ester:

 

Ubwino:

p-cresol acetate ndi madzi opanda mtundu okhala ndi fungo lonunkhira. Pawiri ndi sungunuka mu organic solvents monga Mowa ndi ethers, koma kawirikawiri m'madzi.

 

Gwiritsani ntchito:

p-cresol acetate ili ndi ntchito zosiyanasiyana m'makampani. Ndiwosungunulira wamba m'mafakitale omwe amatha kugwiritsidwa ntchito ngati zokutira, zomatira, ma resin, ndi zotsukira. Itha kugwiritsidwanso ntchito ngati chokonzera fungo lonunkhira ndi musks, kulola kuti zokometsera ndi zonunkhira zizikhala nthawi yayitali.

 

Njira:

Kukonzekera kwa p-cresol acetate kumatha kuchitidwa ndi transesterification. Njira yodziwika bwino ndiyo kutenthetsa ndi kuchitapo kanthu p-cresol ndi acetic anhydride pamaso pa asidi catalyst kupanga p-cresol acetate ndi acetic acid.

 

Zambiri Zachitetezo:

Acetic acid ndi poizoni ndipo amakwiyitsa ku cresol ester. Mukamagwiritsa ntchito kapena kugwiritsa ntchito, muyenera kusamala kuti muteteze khungu ndi maso komanso kupewa kukhudzana mwachindunji. Mukalowetsedwa kapena kupumira, pitani kuchipatala mwamsanga. Iyenera kusungidwa pamalo ozizira, opanda mpweya wabwino komanso malo owuma, kutali ndi moto ndi oxidizer, kuonetsetsa kuti ikugwiritsidwa ntchito bwino.


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