Diisopropyl ether/Isopropyl ether
Tirohanga Whānui o te Hua
Ingoa Matū: Isopropyl Ether (e mōhiotia ana ko Diisopropyl Ether, DIPE)
Tau CAS: 108-20-3
Tātai Ngota: C₆H₁₄O
Taumaha ngota: 102.18 karamu/mol
Āhua: Wai mārama, kore tae, he kakara āhua rite ki te etera
Te Pūnga Kohua: 68-69°C (154-156°F)
Pūwāhi Mura: -28°C (-18°F; kapu kua kati)
He matū etera mura, he pūngāwerewere te Isopropyl Ether, e mōhiotia whānuitia ana mō ōna āhuatanga whakarewa pai rawa atu. Hei whakarewa waenga-polarity, ka whakataurite i te wairewa mō ngā matū waro me ngā matū paku-polar, ka waiho hei rauemi matua mō te hanga matū, te tango, me te horoi ahumahi. Nā tōna pāmahana kohua iti me te taurite ngawari ka taea te whakaora ngāwari i roto i ngā tukanga whakatō, e tautoko ana i te whai huatanga utu me te pumau.
Ngā Āhuatanga Matua me ngā Painga
| Taonga | Whakatakotoranga | Painga Matua |
| Te wairewatanga | He wairewa pakupaku ki te wai (~1.2 g/L i te 20°C); ka taea te whakaranu ki te etanoru, te āketo, te penehīni, me te nuinga o ngā whakarewa waro | He maha ngā whakamahinga mō te whakarewa i ngā hinu, ngā kapia, ngā ware pi, me ngā matū waro; he hototahi ki ngā whakarewa tahi noa |
| Te hurihuri | Pēhanga kohu: 16.9 kPa i te 20°C; iti te pūwāhi koropupū (68 - 69°C) | Ka taea te tere o te mimiti i roto i ngā tukanga paninga/whakamaroke; ka ngāwari te wehewehe mā te whakahoromata |
| Te Pūmautanga Matū | Pūmau i raro i ngā tikanga rokiroki noa; ka memeha haere ina pā ki ngā waikawa kaha, ki ngā waikura rānei | He pono mō te rokiroki mō te wā roa (ina tiakina mai i ngā peroxides); he iti noa te tauhohenga ki te nuinga o ngā papa |
| Kiato (20°C) | 0.725 karamu/cm³ | Ka whakaitihia ngā utu kawe e te iti o te mātotoru; he ngāwari ki te whakahaere i roto i ngā tukanga whakaranu wai |
| Te pāmahana mura aunoa | 443°C (829°F) | He haumaru ake i ngā whakarewa mura rawa (hei tauira, te diethyl ether) i roto i ngā taiao whakahaeretia |
Ngā tono noa
Nā te maha o ngā āhuatanga o te whakarewa Isopropyl Ether, me tōna āhua hurihuri, he mea nui tēnei puta noa i ngā ahumahi maha:
3.1 Te Hanganga Matū me te Tangohanga
Hanganga Waro: Hei whakarewa tauhohenga mō ngā tauhohenga Grignard, ngā alkylation, me ngā esterification. Mā tōna polarity iti ka āwhina i te whakahaere i ngā tere tauhohenga me te whakapai ake i ngā hua hua mō ngā takawaenga kore-polar.
Tangohanga Wai-Wai: Whakamahia hei wehe i ngā matū waro mai i ngā wairewa (hei tauira, te tango i ngā rongoā, ngā patu pepeke, ngā matū kakara rānei mai i ngā hupa whakapūkara, i ngā tangohanga tipu rānei).
Te Hanganga Peroxide: He rauemi mata mō te hanga diisopropyl peroxydicarbonate (IPP), he mea whakaoho noa mō te hanga polymer (hei tauira, polyvinyl chloride, PVC).
3.2 Te Horoi me te Paninga Ahumahi
Kaiwhakakore Hinu: He whai hua mō te tango hinu, te ngako, me te ware pi i ngā wāhanga whakarewa (hei tauira, ngā wāhanga motuka, ngā mīhini) nā te mea he kaha tōna kaha ki te whakakore i ngā warowaihā.
Ngā Hanganga Paninga me te Piripiri: Ka waimeha i ngā kapia, ngā mea whakakikorua, me ngā piripiri hei whakatika i te matotoru, kia maeneene ai te paninga me te tere o te whakapakeketanga (e whakamahia ana i roto i ngā paninga rakau, ngā piripiri ahumahi).
3.3 Ngā Whakamahinga Taiwhanga me ngā Tātari
Te Whakarewa Chromatography: Whakamahia hei wāhanga wāhanga nekeneke i roto i te chromatography hau (GC) me te chromatography wai mahi-teitei (HPLC) hei wehewehe i ngā tātaritanga waro.
Te whakarewa mō te whakarite tauira: Ka whakarewa i ngā tauira totoka (hei tauira, ngā ngako, ngā pūmua) mō te tātari matū (hei tauira, te tirotiro infrared Fourier-transform, FTIR).
3.4 Wahie me te Pūngao
Tāpiri Wahie: I konatunatua ki te penehīni hei whakapai ake i te whakatauranga octane me te whakaiti i te patukitanga o te mīhini; ka whakarei ake hoki i te pumau o te wahie i te wā e rongoa ana.
Haumaru me te Whakatutukitanga
4.1 Ngā Aratohu Haumaru
Mōrearea Mura: He wai me he kohu mura rawa; kia matara atu i ngā mura tuwhera, ngā korakora, me ngā mata wera (whakamahia ngā taputapu ātete-pahūtanga ki ngā wāhi whakahaere).
Te Hanganga o te Peroxide: Ka taea te hanga i ngā peroxide pahū ina pāngia e te hau, te mārama, te wera rānei i roto i te wā. Whakamātauria ngā peroxide (mā te whakamahi i te pepa māngaro-iodide) i mua i te whakamahinga; maka atu mēnā ka kitea he peroxide.
Te Whakahaere i ngā Taputapu Ārai: Mauria he karapu nitrile, he mōhiti parewai matū, me te manawa whakamahana (N95, teitei ake rānei) i ngā wāhi kāore i te pai te hau. Āta karohia te pa ki te kiri/kanohi (tērā pea ka riri) me te manawa i ngā kohu (tērā pea ka pōuri, ka whakapairuaki rānei).
Rokiroki: Rokirokihia ki tētahi wāhi hauhautanga, pōuri, ā, he pai te hauhautanga; whakamahia he ipu karāhe amber, he ipu HDPE rānei, ā, kaua e uru ki roto. Tāpirihia he aukati peroxide (hei tauira, hydroquinone) hei rokiroki mō te wā roa.
4.2 Te Whakatutuki i ngā Ture
REACH (EU): Kua rēhitatia i raro i te REACH (Tau Rēhita: 01-2119488787-46-xxxx); e tutuki ana i ngā here mō ngā poke peroxide.
OSHA (US): Te Herenga Whakamārama Mahi (OEL): 500 ppm (8-haora TWA); he wai mura (NFPA Akomanga IB).
Whakarōpūtanga GHS: GHS02 (Wai Mura), GHS07 (Whakariri), GHS08 (Tērā pea ka puta he waikura pahū).
Ngā Paerewa ISO: E tutuki ana i te ISO 6353-2 (ngā whakaritenga mō te reagent grade) mō te whakamahinga taiwhanga.
Ngā Kaupapa Matua o te Pepa Raraunga Hangarau (TDS)
| Tawhā | Taumata Ahumahi | Taumata Whakahohe | Tikanga Whakamātautau |
| Parakore (min) | 99.0% | 99.5% | Te Whakamātautau Hau (GC) |
| Te Ihirangi Makuku (mōrahi) | 0.1% | 0.05% | Te Whakatakotoranga a Karl Fischer |
| Te Ihirangi Peroxide (mōrahi) | 5 ppm | 1 ppm | Te Titration Iodometric |
| Te waikawa (hei CH₃COOH, mōrahi) | 0.005% | 0.001% | Te Whakatakotoranga Hauwai Konutai |
| Toenga Kore-Pūrere (mōrahi) | 5 mg/kg | 1 mg/kg | Ine taumaha |
He aha i whiriwhiri ai i tā mātou Isopropyl Ether (CAS 108-20-3)?
He iti te mōrearea o te peroxide: Kua whakauhia tā mātou hua ki ngā aukati kai-kai, hei whakaiti i te hanganga peroxide, hei whakarite hoki i te whakamahinga haumaru.
Te Parakore Pūmau: Mā te whakahaere parakore o ia puranga (≥99.0% mō te taumata ahumahi) ka whakaitihia ngā poke e whakararuraru ana i ngā tukanga.
Mōkihi Whakaritenga: E wātea ana i roto i ngā pūwero 1L, 20L, 200L, ngā tāke ISO rānei mō ngā ota iti, ngā ota ahumahi nui rānei.
Tautoko Hangarau: Ka whakaratohia e tā mātou tīma he aratohu mō te whakamātautau peroxide, te rokiroki, me te arotautanga tono (hei tauira, te whakaranu whakarewa mō te tango).
Whakatutukitanga Ao Whānui: E tutuki ana i ngā paerewa o te ao (REACH, OSHA, ISO) mō te whakamahi i roto i ngā mākete o te EU, o te US, me Āhia.
Whakapā mai
Mō ngā utu, ngā tauira, ngā tuhinga TDS/COA katoa rānei, whakapā atu ki tā mātou tīma hokohoko:
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