(R) - (+) - 2 - (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Akụrụngwa: (R) - (+) - 2 - (4-Hydroxyphenoxy) Propionic Acid (HPPA)
CAS #: 94050-90-5
Ụdị molekụla: C9H10O4
Usoro nhazi:
Na-eji: A na-eji ya na njikọ nke aryloxy phenoxy-propionates herbicide.
Nkọwapụta:
| Ihe | Ọkọlọtọ |
| Ọdịdị | White crystalline siri ike |
| Nyocha kemịkalụ | ≥99.0% |
| Ịdị ọcha anya | ≥99.0% |
| Ebe mgbaze | 143-147 ℃ |
| Mmiri | ≤0.5% |
Ngwa akọwapụtara
Ndị nọ n'etiti ọgwụ pesticide; A na-eji ya dị ka etiti nke puma, arụmọrụ dị elu Gaicao, jingwensha, jingquizalofop, alkyne ester na ọgwụ ndị ọzọ.
Usoro mmepụta
1. P-chlorobenzoyl chloride kwadebere site na mmeghachi omume nke p-chlorobenzoyl chloride na anisole, na-esote hydrolysis na demethylation.
2. Mmeghachi omume nke p-chlorobenzoyl chloride na phenol: igbari 9.4g (0.1mol) nke phenol na 4ml nke 10% sodium hydroxide ngwọta, tinye 14ml (0.110mol) nke p-chlorobenzoyl chloride dropwise na 40 ~ 45 ℃. 30min, ma meghachi omume n'otu ọnọdụ okpomọkụ maka 1H. Jụụ ruo ụlọ okpomọkụ, nzacha na nkụ iji nweta 22.3g nke phenyl p-Chlorobenzoate. Mkpụrụ ahụ bụ 96%, ebe agbaze bụ 99 ~ 101 ℃.
Ọgwụgwọ mberede nke ntapu
Usoro nchekwa, akụrụngwa nchebe na usoro mkpofu ihe mberede maka ndị na-arụ ọrụ:
A na-atụ aro ka ndị na-ahụ maka ọgwụgwọ ihe mberede na-eyi ngwa iku ume ikuku, uwe mgbochi static na gloves na-eguzogide mmanụ.
Emetụla aka ma ọ bụ gafee ihe nwụfu.
Ngwa niile eji eme ihe mgbe a na-arụ ọrụ ga-agbada.
Ebipụ isi iyi nke ntapu ka o kwere mee. Wepu isi mmalite mgbanye niile.
A ga-ahọpụta mpaghara ịdọ aka ná ntị dịka mpaghara mmiri mmiri na-emetụta, uzuoku ma ọ bụ uzuzu uzuzu, na ndị ọrụ na-adịghị mkpa ka a ga-ebupụ na ebe nchekwa site na ifufe na elu elu.
Usoro nchekwa gburugburu: nwere ntapu iji zere mmetọ gburugburu ebe obibi. Gbochie ntapu ịbanye n'ọwa mmiri, mmiri dị n'elu na mmiri ala.
Ụzọ nchekwa na mwepụ nke kemịkalụ agbapụta na ihe mkpofu ejiri:
Obere ntapu: na-anakọta mmiri mmiri na-agbapụta n'ime akpa nwere ike imechi ka o kwere mee. Were ájá, carbon na-arụ ọrụ ma ọ bụ ihe ndị ọzọ na-adịghị arụ ọrụ ma bufee n'ebe dị mma. Abanyela n'ime ọwa mmiri.
Nnukwu ntapu: wuo dike ma ọ bụ gwuo olulu maka nnabata. Mechie ọkpọkọ drainage. A na-eji ụfụfụ kpuchie evaporation. Nyefee na ụgbọ ala tankị ma ọ bụ onye na-anakọta pụrụ iche nwere mgbapụta mgbawa, megharịa ma ọ bụ bufee n'ebe a na-ekpofu ahịhịa maka mkpofu.
Ngwa nchedo onwe onye:
Nchekwa iku ume: mgbe itinye uche na ikuku gafere ọkọlọtọ, yi ihe nzacha gas nzacha (ọkara nkpuchi). Mgbe ị na-anapụta ma ọ bụ na-apụ na mberede, ị kwesịrị iyi ngwa iku ume ikuku.
Nchedo aka: yi uwe aka na-eguzogide mmanụ roba.
Nchedo anya: yikwasị anya nchekwa nchekwa kemịkal.
Nchekwa akpụkpọ ahụ na ahụ: yikwasị uwe ọrụ mgbochi nsi.
