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hua

cyclopentadiene(CAS#542-92-7)

Āhuatanga matū:

Tātai rāpoi C5H6
Molar Mass 66.1
Kiato d40 0.8235; d410 0.8131; d420 0.8021; d425 0.7966; d430 0.7914
Te Whakarewa -85°; mp 32.5°
Piro Pouri bp760 41.5-42.0°
Wairewa wai 10.3 mM i te 25 °C (wiri ipu-UV spectrophotometry, Streitwieser me Nebenzahl, 1976)
Wairewa Ka uru ki te acetone, benzene, waro tetrachloride, me te etera. Ka whakarewahia i roto i te waikawa ahetiki, te aniline, me te waro warowaiwa (Windholz et al., 1983).
Kohu Kohu 381 i te 20.6 °C, 735 i te 40.6 °C, 1,380 i te 60.9 °C (Stoeck me Roscher, 1977)
Te ahua Te wai kore tae
Tepe Whakaaturanga TLV-TWA 75 ppm (~202 mg/m3) (ACGIH,NIOSH, and OSHA); IDLH 2000 ppm(NIOSH).
pKa 16(i te 25 ℃)
Te pumau Pumau i te pāmahana rūma. Kare e hototahi ki nga matū waikura, waikawa me te maha atu o nga momo pūhui. Ka hanga he peroxide i roto i te rokiroki. Ka taea te polymerisation mahorahora.Ka pirau i runga i te whakamahana
Taurangi Refactive nD16 1.44632
Āhuatanga ā-tinana, matū hoki Ko tenei hua he wai karekau, MP-97.2 ℃, BP 40 ℃, n20D 1.4446, kiato whanaunga 0.805 (19/4 ℃), whakauru ki te waipiro, ether, benzene me te waro tetrachloride, whakarewa i roto i te waro disulfide, te aniline, te waikawa acetic me paraffin wai, kare e rewa ki te wai. I mahia te polymerization i te pāmahana rūma ki te whakaputa dicyclopentadiene. cyclopentadiene dimer, MP -1 ℃, BP 170 ℃, n20D 1.1510, kiato whanaunga 0.986. Ko te Cyclopentadiene kei te nuinga o te waa he riima.

Taipitopito Hua

Tohu Hua

UN ID 1993
Te akomanga morearea 3.2
Roopu Tarapi III
Te paitini LD50 o dimer a waha i roto i te kiore: 0.82 g/kg (Smyth)

 

Kupu Whakataki

Ko te Cyclopentadiene (C5H8) he wai karekau he tae, he kakara kakara. Ko te olefin tino kore e mau e tino polymerized me te ahua mura.

 

He maha nga whakamahinga a Cyclopentadiene ki te rangahau matū. Ka taea hoki te whakamahi hei rauemi mata mo nga polymers me nga rapa hei whakapai ake i o raatau ahuatanga tinana me te matū.

 

E rua nga tikanga matua mo te whakarite i te cyclopentadiene: ko tetahi ka puta mai i te pakaru o te hinu parawini, ko tetahi he mea whakarite na te tauhohenga inemene, te tauhohenga hauwai ranei o te olefins.

 

Ko te Cyclopentadiene he tino pahekeheke, he muramura, he wai muramura. I roto i te tukanga o te rokiroki me te kawe, me mahi nga mahi aukati ahi me te pahū ki te karo i te pa ki nga mura tuwhera me te wera nui. Me mau taputapu whakamarumaru e tika ana penei i nga karapu, motiiti, me nga kakahu pupuhi ina whakamahi me te whakahaere i te cyclopentadiene. I te wa ano, kia tupato ki te karo i te pa ki te kiri me te ngongo o ona kohu, kia kore ai e pawera me te paihana. Mena ka pakaru ohorere, tapahia te puna o te turuturu kia tere ka horoi ki nga rauemi e tika ana. I roto i nga mahi whakangao ahumahi, me whai tonu nga tikanga whakahaere haumaru me nga tikanga hei whakarite i te haumaru whakahaere.


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