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imveliso

I-Methyl benzoate(CAS#93-58-3)

Ipropati yeMichiza:

Ifomula yeemolekyuli C8H8O2
IMisa yeMolar 136.15
Ukuxinana 1.088 g/mL ku-20 °C (lit.)
Indawo yokunyibilika -12 °C (izibane.)
Indawo yeBoling 198-199 °C (isibane.)
Indawo yokuflasha 181°F
Inombolo yeJECFA 851
Ukunyibilika kwamanzi <0.1 g/100 mL ku-22.5 ºC
Ukunyibilika I-ethanol: i-soluble60%, icacile (1mL / 4ml)
Uxinzelelo loMphunga <1 mm Hg ( 20 °C)
Ukuxinana komphunga 4.68 (vs umoya)
Imbonakalo Ulwelo
Ubunzima obuthile 1.087~1.095 (20℃)
Umbala Icacile engenambala ukuya kumthubi
Merck 14,6024
I-BRN 1072099
Imeko yoGcino Gcina ku +5°C ukuya +30°C.
Uzinzo Izinzile. Ukutsha. Ayihambelani ne-oxidizing agents ezinamandla, i-acids eqinile, iziseko ezinamandla.
Umda wokuqhushumba 8.6-20%(V)
Refractive Index n20/D 1.516(lit.)
IiPropati zoMzimba kunye nezeMichiza Ulwelo olunamafutha angenambala, kunye nevumba eliqinileyo lentyatyambo kunye necherry.
indawo yokunyibilika -12.3 ℃
iqondo lokubila 199.6 ℃
ukuxinana kobudlelwane 1.0888
refractive index 1.5164
indawo edanyazayo 83 ℃
ukunyibilika ngokuxubene ne-ether, ukunyibilika kwi-methanol, i-ether, enganyibiliki emanzini kunye ne-glycerol.
Sebenzisa Ukulungiselela incasa, ikwasetyenziswa njenge-cellulose ester, cellulose ether, resin, irabha kunye nezinye izinyibilikisi.

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xn – Iyingozi
Iikhowudi zoMngcipheko 22 – Iyingozi xa iginyiwe
Inkcazelo yoKhuseleko 36 – Nxiba iimpahla ezifanelekileyo zokukhusela.
Izazisi ze-UN UN 2938
WGK eJamani 1
RTECS DH3850000
I-TSCA Ewe
Ikhowudi ye-HS 29163100
Ubutyhefu I-LD50 ngomlomo kwiimpuku: 3.43 g/kg (Smyth)

 

Intshayelelo

I-Methyl benzoate. Oku kulandelayo sintshayelelo kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-methyl benzoate:

 

Umgangatho:

- Inembonakalo engenambala kunye nevumba elikhethekileyo.

-Inyibilika kwizinyibilikisi zendalo ezifana neealkoholi, ii-ethers kunye nebenzene, ezinganyibilikiyo emanzini.

- Isenokusabela nge-oxidizing agents eyomeleleyo.

 

Sebenzisa:

- Isetyenziswa njengesinyibilikisi, umz. kwiiglu, iicoatings kunye nokufakwa kwefilimu.

- Kwi-organic synthesis, i-methyl benzoate yinto ebalulekileyo ephakathi kwi-synthesis yamachiza amaninzi.

 

Indlela:

- I-Methylparaben idla ngokulungiswa ngokuphendula kwe-benzoic acid kunye ne-methanol. I-Acid catalysts efana ne-sulfuric acid, i-polyphosphoric acid kunye ne-sulfonic acid ingasetyenziselwa iimeko zokusabela.

 

Ulwazi ngoKhuseleko:

- I-Methylparaben lulwelo olunokutsha kwaye kufuneka igcinwe kwaye ilahlwe ngomlilo kunye nokhuseleko lokudubula, kwaye kude nemithombo yobushushu kunye namadangatye.

- Ukuba sesichengeni kwi-methyl benzoate kunokubangela ukucaphuka kwamehlo kunye nolusu, kwaye kufuneka kuthathwe amanyathelo okhuseleko afanelekileyo.

- Xa usebenzisa i-methyl benzoate, qinisekisa ukungena komoya kakuhle kwaye uphephe ukuphefumla umphunga wayo.

- Uqheliselo olululo lwelabhoratri kunye namanyathelo okhuseleko kufuneka alandelwe xa kusetyenziswa kwaye kugcinwa i-methyl benzoate.


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