Tuam Tshoj Tus Muag Khoom Pgr Cog Kev Loj Hlob Regulator 4 Chlorophenoxyacetic Acid Sodium 4CPA 98% Tc

Scope ntawm daim ntawv thov

P-chlorophenoxyacetic acid yog ib yam khoom uas tswj kev loj hlob ntawm cov nroj tsuag phenoxyl uas muaj auxin ua haujlwm. Nws feem ntau yog siv los tiv thaiv cov paj thiab txiv hmab poob, tiv thaiv cov noob taum kom tsis txhob muaj cag, txhawb kom cov txiv hmab teeb, ua rau cov txiv hmab tsis muaj drupe, thiab txhawb kom cov txiv hmab loj hlob.

Txoj kev siv

Siv 1 gram ntawm sodium chloropenoxate los ntsuas qhov hnyav kom raug, muab tso rau hauv lub beaker (lossis lub khob me), ntxiv me ntsis dej kub lossis 95% cawv, do tas li nrog ib tug pas iav kom txog thaum nws yaj tag, thiab tom qab ntawd ntxiv dej rau 500 ml, uas yog, kom dhau los ua 2000 ml/kg ntawm cov tshuaj tiv thaiv kev poob. Thaum siv, nws yog ib qho tseem ceeb kom dilute ib qho ntawm cov tshuaj nrog dej kom txog thaum muaj qhov concentration xav tau rau kev txau, dipping, thiab lwm yam.
(1) Tiv thaiv kom tsis txhob poob paj thiab txiv hmab txiv ntoo:
① Ua ntej thiab tom qab 9 teev sawv ntxov, muab cov paj poj niam zucchini uas qhib lawm nrog 30 txog 40 mg/kg tshuaj kua rau.
②Muab 30 txog 50 mg/kg ntawm cov tshuaj kua rau hauv ib lub tais me me, thiab muab cov paj tso rau thaum sawv ntxov ntawm hnub uas cov txiv lws suav tawg paj (muab cov paj tso rau hauv cov tshuaj kua, thiab tom qab ntawd kov cov nplaim paj ntawm sab ntawm lub tais kom cov tee dej ntau dhau ntws mus rau hauv lub tais).
③ Nrog 1 txog 5 mg/kg ntawm cov tshuaj kua, tsuag rau ntawm cov paj noob hlis, tsuag ib zaug txhua 10 hnub, tsuag ob zaug.
④ Thaum lub caij nplooj zeeg paj noob hlis, nrog 4 txog 5 mg / kg ntawm cov tshuaj kua, tshuaj tsuag paj, tshuaj tsuag ib zaug txhua 4 txog 5 hnub.
⑤Thaum 2/3 ntawm cov paj qhib rau ntawm txhua lub paj ntawm cov txiv lws suav, tshuaj tsuag cov paj nrog 20 txog 30 mg / kg ntawm cov tshuaj kua.

⑥ Thaum lub sijhawm txiv hmab tawg paj, tsuag nrog 25 txog 30 mg / kg ntawm cov tshuaj kua.
⑦Thaum cov paj dib poj niam qhib, tsuag cov paj nrog 25 ~ 40 mg / kg ntawm cov tshuaj kua.
⑧ 3 hnub tom qab cov kua txob qab zib (kub) tawg paj, tsuag cov paj nrog 30 txog 50 mg/kg ntawm cov tshuaj kua.
⑨ Thaum cov txiv tsawb dawb tawg paj, tsuag cov paj nrog 60 ~ 80 mg / kg ntawm cov tshuaj kua.
(2) Txhim kho kev khaws cia: 3 txog 10 hnub ua ntej sau cov zaub qhwv Suav, xaiv hnub ci thaum tav su, nrog 40 txog 100 mg / kg ntawm cov tshuaj kua, txau los ntawm hauv qab mus rau hauv paus ntawm cov zaub qhwv Suav, nrog rau nplooj ntub thiab cov tshuaj kua tsis ntws, tuaj yeem txo lub sijhawm khaws cia ntawm nplooj zaub qhwv Suav.

Cov teeb meem uas xav tau kev saib xyuas

(1) Tsum tsis txhob siv zaub 3 hnub ua ntej sau qoob loo. Siv tau zoo dua li siv 2, 4-teev. Siv lub tshuab tsuag me me (xws li lub tshuab tsuag tshuaj kho mob) los tsuag paj thiab tsis txhob tsuag rau ntawm cov ceg thiab cov ceg. Tswj xyuas kom meej tias cov tshuaj siv ntau npaum li cas, qhov concentration thiab lub sijhawm siv ntawm cov tshuaj kom tiv thaiv kev puas tsuaj ntawm cov tshuaj.
(2) Tsis txhob siv tshuaj rau hnub kub, kub thiab los nag kom tiv thaiv kev puas tsuaj ntawm cov tshuaj. Tsis txhob siv tus neeg sawv cev no rau cov zaub uas tau khaws cia.

Kev khaws cia

Cov xwm txheej khaws cia 0-6 ° C; Kaw thiab qhuav. Qhov cua hauv tsev rau khoom thiab ziab kom qhuav qhov kub qis; Khaws thiab thauj cais ntawm cov khoom noj khoom haus.

Txoj kev npaj

Nws yog tau los ntawm kev sib xyaw ntawm phenol thiab chloroacetic acid thiab chlorination. 1. Condensation cov phenol yaj yog sib xyaw nrog 15% sodium hydroxide kua, thiab cov kua chloroacetic acid aqueous yog neutralized nrog sodium carbonate. Ob qho tib si sib xyaw hauv lub lauj kaub tshuaj tiv thaiv thiab cua sov rau reflux rau 4 teev. Tom qab cov tshuaj tiv thaiv, ntxiv hydrochloric acid rau pH ntawm 2-3, do thiab txias, crystallize, lim, ntxuav hauv dej khov, qhuav, phenoxyacetic acid tau txais. 2. Chlorination Sib tov phenoxyacetic acid thiab glacial acetic acid kom yaj, ntxiv cov ntsiav tshuaj iodine, thiab tshem tawm chlorine ntawm 26-34 ℃. Tom qab chlorine tas, muab tso rau ib hmos, hnub tom qab hauv dej txias crystallization, lim, ntxuav nrog dej kom txog thaum cov khoom tiav tsis muaj zog, qhuav.