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

Ipropati yeMichiza:

Ifomula yeemolekyuli	C7H8O
IMisa yeMolar	108.14
Ukuxinana	1.034g/mLat 25°C(lit.)
Indawo yokunyibilika	32-34°C(lit.)
Indawo yeBoling	202°C(lit.)
Indawo yokuflasha	193°F
Inombolo yeJECFA	693
Ukunyibilika kwamanzi	20 g/L (20 ºC)
Ukunyibilika	20g/l
Uxinzelelo loMphunga	1 mm Hg ( 20 °C)
Ukuxinana komphunga	3.72 (vs umoya)
Imbonakalo	I-Crystalline Solid okanye i-Liquid
Ubunzima obuthile	1.0341 (20/4℃)
Umbala	Ayinabala ukuya kumthubi okhanyayo, inokuba mnyama xa utyhilekile ekukhanyeni
Umda wokuvezwa	I-NIOSH REL: TWA 2.3 ppm (10 mg / m3), IDLH 250 ppm; I-OSHA PEL: TWA 5ppm (22 mg/m3); ACGIH TLV: TWA yazo zonke ii-isomers 5 ppm (eyamkelweyo).
Merck	14,2579
I-BRN	1305151
pKa	10.17(nge-25℃)
Imeko yoGcino	Gcina ngaphantsi +30°C.
Uzinzo	Izinzile. Ukutsha. Ayihambelani ne-oxidizing agents ezinamandla. Umoya kunye nokukhanya. Hygroscopic.
Inovakalelo	Ukukhanya okunovelwano
Umda wokuqhushumba	1%(V)
Refractive Index	nD20 1.5395
IiPropati zoMzimba kunye nezeMichiza	Le mveliso ilulwelo olungenambala olucacileyo okanye ikristale, enencasa yephenol, inokutsha. Inyibilika kwi-ethanol, i-ether, i-chloroform kunye namanzi ashushu, indawo yokubilisa 202℃, indawo yokunyibilika 35.26℃.
Sebenzisa	Le mveliso yimveliso ye-antioxidant 2, i-6-di-tert-butyl-p-cresol kunye ne-rubber ye-antioxidant ye-raw materials, ngexesha elifanayo, kodwa kunye nokuveliswa kwe-TMP yamachiza kunye nedayi ekhoyo kwisiseko sezinto ezibalulekileyo ezibonakalayo.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko	R24/25 - I-R34 – Ibangela ukutsha R39/23/24/25 - I-R23/24/25 – Ityhefu ngokuphefumla, xa udibana nesikhumba naxa uginyiwe.
Inkcazelo yoKhuseleko	S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso. S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.) S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu.
Izazisi ze-UN	UN 3455 6.1/PG 2
WGK eJamani	1
RTECS	GO6475000
FLUKA BRAND F IIKHOWUDI	8
I-TSCA	Ewe
Ikhowudi ye-HS	29071200
Inqaku Lengozi	Iyacaphukisa
IKlasi yeeNgozi	6.1
Iqela lokuPakisha	II
Ubutyhefu	I-LD50 ngomlomo kwiimpuku: 1.8 g/kg (Deichmann, Witherup)

Intshayelelo

I-Cresol, ngokwekhemikhali eyaziwa ngokuba yi-methylphenol (igama lesiNgesi i-Cresol), yi-organic compound. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-p-toluenol:

Umgangatho:

Imbonakalo: ICresol lulwelo olungenambala okanye olutyheli olunevumba elikhethekileyo lephenolic.

Ukunyibilika: Kunyibilika kwiialkoholi, kwii-ethers nakwii-ethers, kwaye zinyibilika kancinane emanzini.

Iimpawu zemichiza: I-Cresol yinto eneasidi edibana ne-alkali yenze ityuwa ehambelana nayo.

Sebenzisa:

Ukusetyenziswa kwemizi-mveliso: I-Cresol isetyenziswa njengesigcini, isibulali-ntsholongwane, kunye nesinyibilikisi xa kusenziwa izithinteli. Ikwasebenza njenge-catalyst kunye ne-solvent kumashishini erabha kunye ne-resin.

Ukusetyenziswa kwezolimo: Itoluene ingasetyenziswa kwicandelo lezolimo njengesibulali zinambuzane kunye nesibulala-zinambuzane.

Indlela:

Zininzi iindlela zokulungisa i-toluenol, enye yazo esetyenziswa ngokuqhelekileyo ukuyifumana ngokusabela kwe-oxidation ye-toluene. Isinyathelo esithile kukuqala ukuphendula i-toluene nge-oxygen ukuvelisa i-toluol phantsi kwesenzo se-catalyst.

Ulwazi ngoKhuseleko:

I-Cresol iyityhefu, kwaye ukudibana ngokuthe ngqo okanye ukuphefumla isixa esikhulu se-cresol kunokuba yingozi empilweni. Iinkqubo ezifanelekileyo zokusebenza zokhuseleko kufuneka zilandelwe xa zisetyenziswa, kwaye kufuneka kusetyenziswe izixhobo ezifanelekileyo zokukhusela.

Kuphephe ukudibana ixesha elide nolusu kwaye ugweme ukuphefumla umphunga walo.

Xa ugcina kwaye uphatha i-toluenol, kufuneka ivalwe ngokufanelekileyo kwaye igcinwe kude nokushisa kunye nokushisa okuphezulu.

Ngaphambili: Phenol(CAS#108-95-2)

Okulandelayo: I-Ethyl maltol(CAS#4940-11-8)

Bhala umyalezo wakho apha kwaye uwuthumele kuthi