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sehlahisoa

p-Cresol(CAS#106-44-5)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C7H8O
'Misa oa Molar 108.14
Botenya 1.034g/mLat 25°C(lit.)
Melting Point 32-34°C(lebone)
Boling Point 202°C(lebone)
Flash point 193°F
JECFA Nomoro 693
Ho qhibiliha ha Metsi 20 g/L (20 ºC)
Solubility 20g/l
Khatello ea Mouoane 1 mm Hg (20°C)
Tekano ea Mouoane 3.72 (khahlanong le moea)
Ponahalo Crystalline Solid kapa Mokelikeli
Matla a Khoheli a khethehileng 1.0341 (20/4℃)
Mmala Ha e na 'mala ho isa ho mosehla o khanyang, e ka fifala ha e pepesehetse khanya
Moedi wa ho pepeseha NIOSH REL: TWA 2.3 ppm (10 mg/m3), IDLH 250 ppm; OSHA PEL: TWA 5ppm (22 mg/m3); ACGIH TLV: TWA bakeng sa li-isomers tsohle 5 ppm (e amohetsoeng).
Merck 14,2579
BRN 1305151
pKa 10.17(ho 25 ℃)
Boemo ba polokelo Boloka ka tlase ho +30°C.
Botsitso E tsitsitseng. E tukang. Ha e lumellane le lisebelisoa tse matla tsa oxidizing. Moya le kganya. Hygroscopic.
E hloahloa Khanya e Imamela
Qeto ea ho phatloha 1%(V)
Refractive Index nD20 1.5395
Thepa ea 'Mele le ea Lik'hemik'hale Sehlahisoa sena ke mokelikeli o bonaletsang o se nang 'mala kapa kristale, e nang le tatso ea phenol, e tukang. E qhibiliha ka ethanol, ether, chloroform le metsi a chesang, ntlha e belang 202, ntlha ea ho qhibiliha 35.26.
Sebelisa Sehlahisoa sena ke tlhahiso ea li-antioxidant 2, 6-di-tert-butyl-p-cresol le lisebelisoa tse tala tsa rabara tsa antioxidant, ka nako e ts'oanang, empa hape le tlhahiso ea TMP ea meriana le lidae tse fumanehang motheong oa lisebelisoa tsa bohlokoa tse tala.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R24/25 -
R34 – E baka ho cha
R39/23/24/25 -
R23/24/25 – E na le chefo ka ho hema, ho kopana le letlalo le haeba e koetsoe.
Tlhaloso ea Tšireletseho S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho.
S45 – Ha ho ka etsahala kotsi kapa ha o ikutlwa o sa phele hantle, batla keletso ya bongaka hanghang (bontsha leibole neng kapa neng ha ho kgoneha.)
S36/37 - Apara liaparo tse loketseng tsa tšireletso le liatlana.
Li-ID tsa UN UN 3455 6.1/PG 2
WGK Jeremane 1
RTECS GO6475000
LIKHOUTU FLUKA BRAND F 8
TSCA Ee
Khoutu ea HS 29071200
Tsebiso ea Kotsi E tenang
Sehlopha sa Likotsi 6.1
Sehlopha sa ho paka II
Chefo LD50 ka molomo ho likhoto: 1.8 g/kg (Deichmann, Witherup)

 

Selelekela

Cresol, e tsejoang ka lik'hemik'hale e le methylphenol (lebitso la Senyesemane Cresol), ke motsoako oa lintho tse phelang. Se latelang ke selelekela sa thepa, tšebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho ea p-toluenol:

 

Boleng:

Ponahalo: Cresol ke mokelikeli o se nang 'mala kapa o mosehla o nang le monko o khethehileng oa phenolic.

Sollubility: E qhibiliha ka har'a joala, li-ether le li-ether, 'me e qhibiliha hanyenyane metsing.

Lintho tsa lik'hemik'hale: Cresol ke ntho e nang le asiti e kopanang le alkali ho etsa letsoai le tsamaisanang le eona.

 

Sebelisa:

Tšebeliso ea liindasteri: Cresol e sebelisoa e le sebaballi, sebolaea likokoana-hloko, le sehlapolli ha ho etsoa li-preservative. E boetse e sebetsa e le mokelikeli le mokelikeli indastering ea rabara le ea resin.

Tšebeliso ea temo: Toluene e ka sebelisoa lekaleng la temo e le sebolaea likokoanyana le fungi.

 

Mokhoa:

Ho na le mekhoa e mengata ea ho lokisa toluenol, e 'ngoe ea eona e atisang ho sebelisoa ho e fumana ka tsela ea oxidation ea toluene. Mohato o khethehileng ke ho qala ka ho arabela toluene ka oksijene ho hlahisa toluol tlas'a ketso ea "catalyst".

 

Lintlha tsa Tšireletseho:

Cresol e chefo, 'me ho kopana ka ho toba kapa ho hema ka bongata ba cresol ho ka ba kotsi bophelong bo botle. Mekhoa ea ts'ebetso ea ts'ireletso e nepahetseng e lokela ho lateloa ha e sebelisoa, 'me ho lokela ho sebelisoa lisebelisoa tse nepahetseng tsa tšireletso.

Qoba ho ama letlalo nako e telele 'me u qobe ho hema mouoane oa lona.

Ha u boloka le ho sebetsana le toluenol, e hloka ho koaloa hantle le ho bolokoa hole le ho chesa le mocheso o phahameng.

 


  • E fetileng:
  • E 'ngoe:

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