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sehlahisoa

cyclopentadiene(CAS#542-92-7)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C5H6
'Misa oa Molar 66.1
Botenya d40 0.8235; d410 0.8131; d420 0.8021; d425 0.7966; d430 0.7914
Melting Point -85°; mp32,5°
Boling Point bp760 41.5-42.0°
Ho qhibiliha ha Metsi 10.3 mM ka 25 °C (shake flask-UV spectrophotometry, Streitwieser and Nebenzahl, 1976)
Solubility E kopane le acetone, benzene, carbon tetrachloride, le ether. E qhibiliha ka acetic acid, aniline, le carbon disulfide (Windholz et al., 1983).
Khatello ea Mouoane 381 ho 20.6 °C, 735 ho 40.6 °C, 1,380 ho 60.9 °C (Stoeck le Roscher, 1977)
Ponahalo Seela se se nang mmala
Moedi wa ho pepeseha TLV-TWA 75 ppm (~202 mg/m3) (ACGIH,NIOSH, le OSHA); IDLH 2000 ppm(NIOSH).
pKa 16(ho 25℃)
Botsitso E tsitsitseng mocheso oa kamore. Ha e lumellane le li-oxidizing agents, li-acids le mefuta e mengata ea metsoako e meng. E ka etsa peroxides polokelong. E ka 'na ea etsa polymerisation e iketsang.E bola ha e futhumatsa
Refractive Index nD16 1.44632
Thepa ea 'Mele le ea Lik'hemik'hale Sehlahisoa sena ke mokelikeli o se nang 'mala, MP-97.2 ℃, BP 40 ℃,n20D 1.4446, relakane density 0.805 (19/4 ℃), motsoako oa joala, ether, carbon tetrachloride, e qhibilihang ka carbon disulfide, aniline le acetic acid. parafine e metsi, e sa qhibidihang metsing. Polymerization e ne e etsoa ka mocheso oa kamore ho hlahisa dicyclopentadiene. cyclopentadiene dimer, MP -1 ℃, BP 170 ℃,n20D 1.1510, boima bo amanang le 0.986. Cyclopentadiene hangata e teng e le dimer.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Li-ID tsa UN 1993
Sehlopha sa Likotsi 3.2
Sehlopha sa ho paka III
Chefo LD50 ea dimer ka molomo ho likhoto: 0.82 g/kg (Smyth)

 

Selelekela

Cyclopentadiene (C5H8) ke mokelikeli o monko o monate o se nang 'mala. Ke olefin e sa tsitsang haholo e nang le polymerized haholo mme e batla e ka cha.

 

Cyclopentadiene e na le mefuta e mengata ea likopo tsa lipatlisiso tsa lik'hemik'hale. E ka boela ea sebelisoa e le thepa e tala bakeng sa li-polymers le li-rubber ho ntlafatsa thepa ea bona ea 'mele le ea lik'hemik'hale.

 

Ho na le mekhoa e 'meli e meholo ea ho lokisetsa cyclopentadiene: e' ngoe e hlahisoa ho tloha ho phunyeha ha oli ea parafine, 'me e' ngoe e lokiselitsoe ke karabelo ea isomerization kapa hydrogenation reaction ea olefins.

 

Cyclopentadiene e futhumala haholo ebile e ka cha, 'me ke mokelikeli o tukang. Nakong ea polokelo le lipalangoang, mehato ea thibelo ea mollo le ho phatloha e lokela ho nkoa ho qoba ho kopana le malakabe a bulehileng le mocheso o phahameng. Apara lisebelisoa tse nepahetseng tsa ts'ireletso tse kang liatlana, likhalase le liaparo tse phatlohang ha u sebelisa kapa u tšoara cyclopentadiene. Ka nako e ts'oanang, tlhokomelo e lokela ho nkoa ho qoba ho kopana le letlalo le ho inhalation ea mouoane oa eona, e le hore e se ke ea baka ho halefa le chefo. Haeba ho na le ho lutla ka phoso, khaola mohloli oa ho lutla kapele 'me u o hloekise ka lisebelisoa tse loketseng tse monyang. Tlhahisong ea indasteri, mekhoa ea ts'ebetso ea ts'ireletso e nepahetseng e tlameha ho lateloa ho netefatsa polokeho ea ts'ebetso.


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