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samfur

cyclopentadiene (CAS#542-92-7)

Abubuwan Sinadarai:

Tsarin kwayoyin halitta C5H6
Molar Mass 66.1
Yawan yawa d40 0.8235; d410 0.8131; d420 0.8021; d425 0.7966; d430 0.7914
Matsayin narkewa -85°; mp 32.5°
Matsayin Boling bp760 41.5-42.0°
Ruwan Solubility 10.3 mM a 25 ° C (shake flask-UV spectrophotometry, Streitwieser da Nebenzahl, 1976)
Solubility Ba zato ba tsammani tare da acetone, benzene, carbon tetrachloride, da ether. Mai narkewa a cikin acetic acid, aniline, da carbon disulfide (Windholz et al., 1983).
Tashin Turi 381 a 20.6 ° C, 735 a 40.6 ° C, 1,380 a 60.9 ° C (Stoeck da Roscher, 1977)
Bayyanar Ruwa mara launi
Iyakar Bayyanawa TLV-TWA 75 ppm (~202 mg/m3) (ACGIH, NIOSH, da OSHA); IDLH 2000 ppm (NIOSH).
pKa 16 (a 25 ℃)
Kwanciyar hankali Barga a dakin da zafin jiki. Wanda bai dace da oxidizing jamiái, acid da wani iri-iri na sauran mahadi. Zai iya samar da peroxides a cikin ajiya. Za a iya sha polymerisation na kwatsam.Yana lalacewa akan dumama
Fihirisar Refractive nD16 1.44632
Abubuwan Jiki da Sinadarai Wannan samfurin ruwa ne mara launi, MP-97.2 ℃, BP 40 ℃, n20D 1.4446, dangi yawa 0.805 (19/4 ℃), miscible tare da barasa, ether, benzene da carbon tetrachloride, mai narkewa a cikin carbon disulfide, aniline, acetic acid da ruwa paraffin, maras narkewa a cikin ruwa. An yi amfani da polymerization a cikin zafin jiki don samar da dicyclopentadiene. cyclopentadiene dimer, MP -1 ℃, BP 170 ℃, n20D 1.1510, dangi yawa 0.986. Cyclopentadiene yawanci yana kasancewa azaman dimer.

Cikakken Bayani

Tags samfurin

ID na UN 1993
Matsayin Hazard 3.2
Rukunin tattarawa III
Guba LD50 na dimer baki a cikin beraye: 0.82 g/kg (Smyth)

 

Gabatarwa

Cyclopentadiene (C5H8) ruwa ne mara launi, ƙamshi mai ƙamshi. Olefin ne mai matuƙar rashin ƙarfi wanda aka yi shi da polymerized sosai kuma yana iya ƙonewa.

 

Cyclopentadiene yana da aikace-aikace da yawa a cikin binciken kimiyya. Hakanan za'a iya amfani da shi azaman ɗanyen abu don polymers da rubbers don haɓaka halayensu na zahiri da sinadarai.

 

Akwai manyan hanyoyi guda biyu don shirye-shiryen cyclopentadiene: ana samar da ɗayan daga fashewar man paraffin, ɗayan kuma an shirya shi ta hanyar isomerization dauki ko halayen hydrogenation na olefins.

 

Cyclopentadiene yana da rauni sosai kuma yana ƙonewa, kuma ruwa ne mai ƙonewa. A cikin tsarin ajiya da sufuri, ana buƙatar ɗaukar matakan rigakafin gobara da fashewa don guje wa haɗuwa da buɗewar wuta da yanayin zafi. Saka kayan kariya masu dacewa kamar safar hannu, tabarau, da tufafin fashewa yayin amfani da sarrafa cyclopentadiene. A lokaci guda kuma a kula don gujewa cudanya da fata da kuma shakar tururinsa, don kada a haifar da hargitsi da guba. A yayin da yatsa na bazata, yanke tushen ruwan da sauri kuma a tsaftace shi da kayan da suka dace. A cikin samar da masana'antu, hanyoyin aminci masu dacewa da matakan aiki suna buƙatar a bi don tabbatar da amincin aiki.


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