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mankhwala

Methyl benzoate(CAS#93-58-3)

Chemical Property:

Molecular Formula C8H8O2
Misa ya Molar 136.15
Kuchulukana 1.088 g/mL pa 20 °C (kuyatsa)
Melting Point -12 °C (kuyatsa)
Boling Point 198-199 °C (kuyatsa)
Pophulikira 181°F
Nambala ya JECFA 851
Kusungunuka kwamadzi <0.1 g/100 mL pa 22.5 ºC
Kusungunuka ethanol: sungunuka 60%, bwino (1mL / 4ml)
Kuthamanga kwa Vapor <1 mm Hg (20 °C)
Kuchuluka kwa Vapor 4.68 (vs mpweya)
Maonekedwe Madzi
Specific Gravity 1.087 ~1.095 (20℃)
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu
Merck 14,6024
Mtengo wa BRN 1072099
Mkhalidwe Wosungira Sungani pa +5 ° C mpaka +30 ° C.
Kukhazikika Wokhazikika. Zoyaka. Zosagwirizana ndi ma oxidizing amphamvu, ma acid amphamvu, maziko amphamvu.
Zophulika Malire 8.6-20% (V)
Refractive Index n20/D 1.516(lit.)
Zakuthupi ndi Zamankhwala Mafuta amadzimadzi opanda mtundu, okhala ndi fungo lamphamvu lamaluwa ndi chitumbuwa.
malo osungunuka -12.3 ℃
kutentha kwa 199.6 ℃
kachulukidwe wachibale 1.0888
Refractive index 1.5164
kung'anima 83 ℃
solubility miscible ndi etha, sungunuka mu methanol, etha, osasungunuka m'madzi ndi glycerol.
Gwiritsani ntchito Pokonzekera kukoma, amagwiritsidwanso ntchito ngati cellulose ester, cellulose ether, resin, rabala ndi zosungunulira zina.

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xn - Zowopsa
Zizindikiro Zowopsa 22 - Zowopsa ngati zitamezedwa
Kufotokozera Zachitetezo 36 - Valani zovala zoyenera zodzitetezera.
Ma ID a UN UN 2938
WGK Germany 1
Mtengo wa RTECS DH3850000
TSCA Inde
HS kodi 29163100
Poizoni LD50 pamlomo makoswe: 3.43 g/kg (Smyth)

 

Mawu Oyamba

Methyl benzoate. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha methyl benzoate:

 

Ubwino:

- Ili ndi maonekedwe opanda mtundu komanso fungo lapadera.

- Kusungunuka mu zosungunulira organic monga ma alcohols, ethers ndi benzene, osasungunuka m'madzi.

- Itha kuchitapo kanthu ndi ma oxidizing amphamvu.

 

Gwiritsani ntchito:

- Amagwiritsidwa ntchito ngati zosungunulira, monga zomatira, zokutira ndi zopaka mafilimu.

- Mu kaphatikizidwe ka organic, methyl benzoate ndi yofunika pakati pa kaphatikizidwe kazinthu zambiri.

 

Njira:

- Methylparaben nthawi zambiri imakonzedwa ndi zomwe benzoic acid ndi methanol. Acid catalysts monga sulfuric acid, polyphosphoric acid ndi sulfonic acid angagwiritsidwe ntchito pazinthu zomwe zimachitika.

 

Zambiri Zachitetezo:

- Methylparaben ndi madzi omwe amatha kuyaka ndipo amayenera kusungidwa ndikutayidwa ndi moto ndi chitetezo cha kuphulika, komanso kutali ndi kutentha ndi malawi.

- Kukhudzana ndi methyl benzoate kungayambitse kuyabwa kwa maso ndi khungu, ndipo muyenera kusamala.

- Mukamagwiritsa ntchito methyl benzoate, onetsetsani kuti mpweya wabwino ndi wabwino ndipo pewani kutulutsa mpweya wake.

- Mchitidwe woyenera wa labotale ndi njira zodzitetezera ziyenera kutsatiridwa mukamagwiritsa ntchito ndikusunga methyl benzoate.


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