(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Kayayyaki:(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Lambar CAS: 94050-90-5
Tsarin Kwayoyin Halitta: C9H10O4
Tsarin Tsarin:
Amfani: Ana amfani da shi wajen haɗa maganin herbicides na aryloxy phenoxy-propionates.
Bayani dalla-dalla:
| Abu | Daidaitacce |
| Bayyanar | Farin lu'ulu'u mai ƙarfi |
| Gwajin sinadarai | ≥99.0% |
| Tsarkakakkiyar gani | ≥99.0% |
| Wurin narkewa | 143-147℃ |
| Danshi | ≤0.5% |
Takamaiman aikace-aikace
Magungunan kashe kwari; Ana amfani da shi azaman matsakaiciyar maganin puma, Gaicao, jingwensha, jingquizalofop, alkyne ester da sauran magungunan kashe kwari masu inganci.
Hanyar samarwa
1. An shirya P-chlorobenzoyl chloride ta hanyar amsawar p-chlorobenzoyl chloride tare da anisole, sannan aka biyo baya da hydrolysis da demethylation.
2. Yadda p-chlorobenzoyl chloride ke amsawa da phenol: Narke 9.4g (0.1mol) na phenol a cikin 4ml na maganin sodium hydroxide 10%, ƙara 14ml (0.110mol) na p-chlorobenzoyl chloride a 40 ~ 45 ℃, ƙara shi cikin mintuna 30, sannan a mayar da martani a daidai zafin na tsawon awa 1. A bar shi ya huce zuwa zafin ɗaki, a tace a busar da shi don samun 22.3g na phenyl p-Chlorobenzoate. Yawan amfanin shine 96%, kuma wurin narkewa shine 99 ~ 101 ℃.
Maganin gaggawa na ɓuya
Matakan kariya, kayan kariya da hanyoyin kawar da gaggawa ga masu aiki:
Ana ba da shawarar cewa ma'aikatan gaggawa su sanya na'urar numfashi ta iska, tufafin hana tsayawa da kuma safar hannu masu jure wa man roba.
Kada a taɓa ko a haɗa zubar da jini.
Duk kayan aikin da ake amfani da su yayin aiki za a yi amfani da su a kan hanya.
A yanke tushen ɓullar iska gwargwadon iyawa. A kawar da duk wata hanyar ƙonewa.
Za a ware yankin gargaɗin bisa ga yankin da ruwa, tururi ko ƙura suka shafa, kuma za a kwashe ma'aikatan da ba su dace ba zuwa yankin tsaro daga iska mai tsallakawa da kuma sama.
Matakan kare muhalli: suna ɗauke da ɓuɓɓugar ruwa don guje wa gurɓatar muhalli. Hana ɓuɓɓugar ruwa daga shiga magudanar ruwa, ruwan saman ruwa da kuma ruwan ƙasa.
Hanyoyin ajiya da cire sinadarai da kayan zubar da kayan da suka zube da aka yi amfani da su:
Ƙaramin ɓuya: tattara ruwan ɓuya a cikin akwati mai rufewa gwargwadon iyawa. Shanye shi da yashi, carbon mai aiki ko wasu kayan da ba su da aiki sannan a mayar da shi wuri mai aminci. Kada a zuba shi a cikin magudanar ruwa.
Babban ɓuya: gina babban daki ko haƙa rami don karɓar baƙi. Rufe bututun magudanar ruwa. Ana amfani da kumfa don rufe ƙafewar ruwa. A mayar da shi cikin motar tanki ko na musamman mai tara ruwa tare da famfo mai hana fashewa, a sake amfani da shi ko a kai shi wurin sarrafa shara don zubar da shi.
Kayan kariya na mutum:
Kariyar numfashi: idan yawan iska ya wuce misali, sanya abin rufe fuska na gas (rabin abin rufe fuska). Lokacin da kake ceto ko fita daga asibiti a lokacin gaggawa, ya kamata ka sanya na'urar numfashi ta iska.
Kariyar hannu: sanya safar hannu masu jure wa man roba.
Kariyar ido: sanya kariya daga sinadarai a idanu.
Kariyar fata da jiki: sanya tufafin aiki masu hana shigar guba.
