(R) - (+) - 2 - (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Kayayyaki: (R) - (+) - 2 - (4-Hydroxyphenoxy) Propionic Acid (HPPA)
CAS#: 94050-90-5
Tsarin kwayoyin halitta: C9H10O4
Tsarin Tsari:
Amfani: Ana amfani da shi a cikin haɗin aryloxy phenoxy-propionates herbicide.
Ƙayyadaddun bayanai:
| Abu | Daidaitawa |
| Bayyanar | Farin kristal mai ƙarfi |
| Binciken kimiyya | ≥99.0% |
| Tsaftar gani | ≥99.0% |
| Wurin narkewa | 143-147 ℃ |
| Danshi | ≤0.5% |
takamaiman aikace-aikace
Tsakanin magungunan kashe qwari; Ana amfani dashi azaman tsaka-tsaki na puma, babban inganci Gaicao, jingwensha, jingquizalofop, alkyne ester da sauran herbicides.
Hanyar samarwa
1. P-chlorobenzoyl chloride an shirya shi ta hanyar amsawar p-chlorobenzoyl chloride tare da anisole, sannan kuma hydrolysis da demethylation.
2. Reaction na p-chlorobenzoyl chloride tare da phenol: narke 9.4g (0.1mol) na phenol a cikin 4ml na 10% sodium hydroxide bayani, ƙara 14ml (0.110mol) na p-chlorobenzoyl chloride dropwise a 40 ~ 45 ℃. 30min, kuma amsa a zazzabi iri ɗaya don 1H. Sanyi zuwa zafin jiki, tace kuma bushe don samun 22.3g na phenyl p-Chlorobenzoate. Yawan amfanin ƙasa shine 96%, kuma wurin narkewa shine 99 ~ 101 ℃.
Maganin gaggawa na yabo
Matakan kariya, kayan kariya da hanyoyin zubar da gaggawa ga masu aiki:
Ana ba da shawarar cewa ma'aikatan agajin gaggawa su sanya na'urorin numfashi na iska, tufafin da ba su da ƙarfi da safar hannu masu jure wa mai.
Kar a taɓa ko ketare zubewar.
Duk kayan aikin da ake amfani da su yayin aiki za su kasance ƙasa.
Yanke tushen zubewar kamar yadda zai yiwu. Cire duk tushen kunna wuta.
Dole ne a keɓance yankin faɗakarwa bisa ga yankin da ruwa ya shafa, tururi ko yaɗuwar ƙura, kuma za a kwashe ma'aikatan da ba su dace ba zuwa wurin aminci daga giciye da iska.
Matakan kare muhalli: sun ƙunshi ɗigogi don guje wa gurɓatar muhalli. Hana yabo daga shiga magudanun ruwa, ruwan saman da ruwan ƙasa.
Hannun adanawa da kawar da sinadarai da aka zube da kayan zubar da aka yi amfani da su:
Ƙaramin ɗigo: tattara ruwan ɗigo a cikin akwati mai rufewa gwargwadon yiwuwa. Shaye da yashi, carbon da aka kunna ko wasu kayan da ba su da ƙarfi kuma canja wuri zuwa wuri mai aminci. Kar a shiga cikin magudanar ruwa.
Yayyo mai yawa: gina dik ko tona rami don liyafar. Rufe bututun magudanar ruwa. Ana amfani da kumfa don rufe evaporation. Canja wurin motar tanki ko mai tarawa na musamman tare da famfo mai hana fashewa, sake yin fa'ida ko jigilar kaya zuwa wurin sharar gida don zubarwa.
Kayan kariya na sirri:
Kariyar numfashi: lokacin da maida hankali a cikin iska ya wuce misali, sa abin rufe fuska tace gas (rabin abin rufe fuska). Lokacin ceto ko fitarwa cikin gaggawa, yakamata ku sanya na'urar numfashi ta iska.
Kariyar hannu: sa safofin hannu masu juriya da mai.
Kariyar ido: sa idanu kare lafiyar sinadarai.
Kariyar fata da jiki: sa tufafin aikin rigakafin shigar guba.
