iphepha_ibhena

imveliso

I-Styrene(CAS#100-42-5)

Ipropati yeMichiza:

Ifomula yeemolekyuli C8H8
IMisa yeMolar 104.15
Ukuxinana 0.906 g/mL kwi-25 °C
Indawo yokunyibilika -31 °C (izibane.)
Indawo yeBoling 145-146 °C (isibane.)
Indawo yokuflasha 88°F
Ukunyibilika kwamanzi 0.3 g/L (20 ºC)
Ukunyibilika 0.24g/l
Uxinzelelo loMphunga 12.4 mm Hg ( 37.7 °C)
Ukuxinana komphunga 3.6 (vs umoya)
Imbonakalo Ulwelo
Ubunzima obuthile 0.909
Umbala Ayinambala
Umda wokuvezwa TLV-TWA 50 ppm (~212 mg/m3) (ACGIHand NIOSH), 100 ppm (~425 mg/m3)(OSHA kunye neMSHA); isilingi 200 ppm, peak600 ppm/5 min/3 h (OSHA); STEL 100 ppm (~425 mg/m3) (ACGIH).
Merck 14,8860
I-BRN 1071236
pKa >14 (Schwarzenbach et al., 1993)
Imeko yoGcino Gcina e
Uzinzo Izinzile, kodwa inokuthi ipholimezelise ekuvekeni ekukhanyeni. Ngokuqhelekileyo ithunyelwa nge-dissolved inhibitor. Izinto ekufuneka ziphetshwe ziquka iiasidi ezomeleleyo, i-aluminium chloride, ii-oxidizing agents ezinamandla, ubhedu,
Inovakalelo Ubuthathaka bomoya
Umda wokuqhushumba 1.1-8.9%(V)
Refractive Index n20/D 1.546(lit.)
IiPropati zoMzimba kunye nezeMichiza Ulwelo olunamafutha angenambala kunye nevumba elimnandi.
indawo yokubilisa 145 ℃
indawo yokukhenkceza -30.6 ℃
ukuxinana kwesihlobo 0.9059
refractive index 1.5467
indawo edanyazayo 31.11 ℃
Ukunyibilika okunganyibilikiyo emanzini, ukunyibilika kwi-ethanol kunye ne-ether.
Sebenzisa Isetyenziswa kakhulu njenge-polystyrene, irabha yokwenziwa, iiplastiki zobunjineli, i-ion exchange resin kunye nezinye izinto ezikrwada.

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R10-Inokutsha
I-R20 – Inobungozi ngokuphefumla
I-R36/38 – Iyacaphukisa amehlo kunye nolusu.
R40 – Ubungqina obuncinane besiphumo somhlaza
R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu.
R39/23/24/25 -
I-R23/24/25 – Ityhefu ngokuphefumla, xa udibana nesikhumba naxa uginyiwe.
I-R11 – Iyatsha kakhulu
R48/20 -
I-R63 – Ingozi enokwenzeka yokwenzakala kumntwana ongekazalwa
Inkcazelo yoKhuseleko S23 – Musa ukuphefumla umphunga.
S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo.
S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S16 – Gcina kude kwimithombo yomlilo.
S45 - Kwimeko yengozi okanye ukuba uziva ungaphilanga, funa iingcebiso zonyango ngokukhawuleza (bonisa ileyibhile nanini na kunokwenzeka.)
S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu.
S7 – Gcina isikhongozeli sivalwe ngokuqinileyo.
S46 – Ukuba uginyiwe, funa iingcebiso zonyango ngokukhawuleza kwaye ubonise esi sikhongozeli okanye ileyibhile.
Izazisi ze-UN UN 2055 3/PG 3
WGK eJamani 2
RTECS WL3675000
I-TSCA Ewe
Ikhowudi ye-HS 2902 50 00
IKlasi yeeNgozi 3
Iqela lokuPakisha III
Ubutyhefu I-LD50 kwiigundane (mg / kg): 660 ± 44.3 ip; 90 ± 5.2 iv

 

Intshayelelo

I-styrene, lulwelo olungenambala kunye nevumba elimnandi elikhethekileyo. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-styrene:

 

Umgangatho:

1. Uxinzelelo olulula.

2. Iyaguquguquka kwiqondo lobushushu begumbi kwaye inokukhanya okuphantsi kunye nomda wokudubula.

3. Iyaxubana neentlobo ngeentlobo zezinyibilikisi eziphilayo kwaye iyinto ebaluleke kakhulu ephilayo.

 

Sebenzisa:

1. I-Styrene yinto ebalulekileyo yeekhemikhali ekrwada, ehlala isetyenziswa kwi-synthesis yenani elikhulu leeplastiki, irabha yokwenziwa kunye nemicu.

2. I-styrene ingasetyenziselwa ukwenza izinto zokwenziwa ezifana ne-polystyrene (PS), i-polystyrene rubber (SBR) kunye ne-acrylonitrile-styrene copolymer.

3. Isenokusetyenziswa ukwenza iimveliso zeekhemikhali ezifana nencasa kunye neoyile yokuthambisa.

 

Indlela:

1. I-Styrene inokufumaneka nge-dehydrogenation ngokufudumeza kunye noxinzelelo lwee-molecule ze-ethylene.

2. I-styrene kunye ne-hydrogen nayo inokufumaneka ngokufudumeza kunye nokuqhekeka kwe-ethylbenzene.

 

Ulwazi ngoKhuseleko:

1. I-styrene iyatsha kwaye kufuneka ikhuselwe ekutshiseni kunye nokushisa okuphezulu.

2. Ukudibana nolusu kunokubangela ukucaphuka kunye nokungaguquki, kwaye kufuneka kuthathwe amanyathelo okhuseleko afanelekileyo.

3. Ukuvezwa kwexesha elide okanye okubonakalayo kunokuba neziphumo ezibi zempilo, kubandakanywa umonakalo kwi-central nervous system, isibindi kunye nezintso.

4. Nika ingqalelo kwindawo yokungenisa umoya xa usebenzisa, kwaye ugweme ukuphefumla okanye ukungena.

5. Ukulahlwa kwenkunkuma kufuneka kuhambelane nemithetho kunye nemimiselo efanelekileyo, kwaye akufanele ilahlwe okanye ilahlwe ngokuthanda kwakho.


  • Ngaphambili:
  • Okulandelayo:

  • Bhala umyalezo wakho apha kwaye uwuthumele kuthi