(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Ngwaahịa:(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)
Nọmba CAS: 94050-90-5
Usoro Molekụla: C9H10O4
Usoro nhazi:
Ojiji: A na-eji ya eme ihe n'ịmepụta ọgwụ herbicidal aryloxy phenoxy-propionates.
Nkọwapụta:
| ihe | Ọkọlọtọ |
| Ọdịdị | Osikapa kristal ọcha siri ike |
| Nnyocha kemịkalụ | ≥99.0% |
| Ịdị ọcha anya | ≥99.0% |
| Ebe agbaze | 143-147℃ |
| Mmiri mmiri | ≤0.5% |
Ngwa akọwapụtara
Ọgwụ nje; A na-eji ya dị ka ihe dị n'etiti puma, Gaicao, jingwensha, jingquizalofop, alkyne ester na ọgwụ ndị ọzọ na-egbu egbu
Usoro mmepụta
1. E ji mmeghachi omume nke p-chlorobenzoyl chloride na anisole kwadebe P-chlorobenzoyl chloride, wee jiri hydrolysis na demethylation mee ya.
2. Mmeghachi omume nke p-chlorobenzoyl chloride na phenol: gbazee 9.4g (0.1mol) nke phenol na 4ml nke 10% sodium hydroxide solution, tinye 14ml (0.110mol) nke p-chlorobenzoyl chloride dropwise na 40 ~ 45 ℃, tinye ya n'ime nkeji 30, wee meghachi omume n'otu okpomọkụ ahụ maka awa 1. Jụụ ruo okpomọkụ ụlọ, yochaa ma kpọọ nkụ iji nweta 22.3g nke phenyl p-Chlorobenzoate. Mkpụrụ ya bụ 96%, ebe agbazekwa bụ 99 ~ 101 ℃.
Ọgwụgwọ mberede nke ntapu mmiri
Usoro nchekwa, ngwa nchekwa na usoro mkpofu mberede maka ndị ọrụ:
A na-atụ aro ka ndị ọrụ ọgwụgwọ mberede yi ihe eji eku ume ikuku, uwe mgbochi static na uwe aka na-eguzogide mmanụ rọba.
Emetụla aka ma ọ bụ kewaa ihe ndị na-awụfu.
A ga-eme ka akụrụngwa niile e ji arụ ọrụ ghara ịda.
Bepụ isi iyi mmiri ahụ ruo n'ókè o kwere mee. Wepụ ihe niile na-eme ka ọkụ gbaa.
A ga-ahọpụta ebe ịdọ aka ná ntị dịka mpaghara mmiri mmiri, uzuoku ma ọ bụ uzuzu si emetụta, a ga-akwapụkwa ndị ọrụ na-adịghị mkpa gaa ebe nchekwa site na ifufe na-efegharị efegharị na ifufe na-arị elu.
Usoro nchekwa gburugburu ebe obibi: nwere mmiri mmiri iji zere mmetọ gburugburu ebe obibi. Gbochie mmiri mmiri mmiri ịbanye na mmiri nsị, mmiri dị n'elu ala na mmiri dị n'okpuru ala.
Ụzọ nchekwa na iwepụ kemịkalụ na ihe mkpofu ndị na-agbapụta agbapụta ejiri:
Obere ntapu mmiri: chịkọta mmiri ntapu mmiri n'ime akpa a pụrụ imechi ruo ebe o kwere mee. Jiri ájá, carbon a na-arụ ọrụ ma ọ bụ ihe ndị ọzọ na-adịghị arụ ọrụ mịpụta ya ma bufee ya n'ebe dị mma. Etinyela ya n'ime mmiri nsị.
Nnukwu mmiri na-agbapụta: wuo mmiri ma ọ bụ gwuo olulu maka nnabata. Mechie paịpụ mmiri. A na-eji ụfụfụ ekpuchi uzuoku. Bufee ya na ụgbọala tankị ma ọ bụ ihe nchịkọta pụrụ iche nwere ọkpọkọ na-anaghị agbawa agbawa, megharịa ya ma ọ bụ bufee ya na ebe a na-agwọ ihe mkpofu maka mkpofu.
Ngwa nchekwa onwe:
Nchedo iku ume: mgbe ntinye ikuku karịrị ọkọlọtọ, yi ihe mkpuchi gas nzacha (ọkara ihe mkpuchi). Mgbe ị na-azọpụta ma ọ bụ na-apụ n'ụlọ mgbe ihe mberede gasịrị, ị kwesịrị iyi ihe mkpuchi ikuku.
Nchekwa aka: yi uwe aka na-eguzogide mmanụ rọba.
Nchedo anya: yie nchedo kemịkalụ anya.
Nchekwa akpụkpọ ahụ na ahụ: yi uwe ọrụ mgbochi nsị ịbanye n'ime ahụ.
