20220326141712

(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)

Lumela, tloo ho bona lihlahisoa tsa rona!

(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)

Thepa:(R) – (+) – 2 – (4-Hydroxyphenoxy) Propionic Acid (HPPA)

CAS #: 94050-90-5

Foromo ea molek'hule: C9H10O4

Foromo ea Sebopeho:

Lisebelisoa: E sebelisoa ha ho etsoa motsoako oa herbicide ea aryloxy phenoxy-propionates.


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Litlhaloso :

Ntho

Standard

Ponahalo

E tiileng ka kristale e tšoeu

Teko ea lik'hemik'hale

≥99.0%

Bohloeki ba mahlo

≥99.0%

Sebaka se qhibilihang

143-147 ℃

Mongobo

≤0.5%

Tšebeliso e khethehileng
Mekhabiso ea chefo e bolaeang likokoanyana; E sebelisoa e le setsi sa mahareng sa puma, Gaicao e sebetsang hantle haholo, jingwensha, jingquizalofop, alkyne ester le litlama tse ling.

Mokhoa oa tlhahiso
1. P-chlorobenzoyl chloride e lokiselitsoe ke karabelo ea p-chlorobenzoyl chloride e nang le anisole, e lateloa ke hydrolysis le demethylation.
2. Karabelo ea p-chlorobenzoyl chloride ka phenol: qhala 9.4g (0.1mol) ea phenol ka 4ml ea 10% sodium hydroxide solution, eketsa 14ml (0.110mol) ea p-chlorobenzoyl chloride dropwise ho 40 ~ 45 ℃ 30min, 'me u arabe ka mocheso o tšoanang bakeng sa 1H. Pholile ho isa mocheso oa kamore, sefa 'me u omelle ho fumana 22.3g ea phenyl p-Chlorobenzoate. Sehlahisoa ke 96%, 'me ntlha ea ho qhibiliha ke 99 ~ 101 ℃.

Kalafo ea tšohanyetso ea ho lutla
Mehato ea ts'ireletso, lisebelisoa tsa ts'ireletso le mekhoa ea ho lahla maemo a tšohanyetso bakeng sa basebelisi:
Ho kgothaletswa hore basebeletsi ba tsa kalafo ya tshohanyetso ba apare disebediswa tsa ho phefumoloha moya, diaparo tse thibelang boemo le ditlelafo tse thibelang oli ya rabara.
U se ke ua tšoara kapa ua tšela marotholi.
Lisebelisoa tsohle tse sebelisoang nakong ea ts'ebetso li lokela ho etsoa fatše.
Khaola mohloli oa ho lutla ka hohle kamoo ho ka khonehang. Tlosa mehloli eohle ea ho tima.
Sebaka sa temoso se tla khethoa ho ea ka sebaka se anngoeng ke phallo ea mokelikeli, mouoane kapa lerōle, 'me basebetsi ba sa amehang ba tla fallisetsoa sebakeng sa tšireletso ho tloha maqhubu le moea o fokang.
Mehato ea ts'ireletso ea tikoloho: e na le ho lutla ho qoba tšilafalo ea tikoloho. Thibela ho lutla ho kena ka har'a likhoerekhoere, metsi a ka holim'a metsi le metsing a ka tlas'a lefatše.
Mekhoa ea ho boloka le ho tlosa lik'hemik'hale tse lutlang le lisebelisoa tsa ho lahla tse sebelisitsoeng:
Ho dutla ho honyane: bokella mokelikeli o dutlang ka setshelong se ka tiisehang kahohle kamoo o ka kgonang. Monya ka lehlabathe, k'habone e kentsoeng kapa lisebelisoa tse ling tsa inert ebe u fetisetsa sebakeng se sireletsehileng. U se ke ua hohola ka har'a likhoerekhoere.
Ho dutla ho hoholo: ho aha sekoti kapa ho tjheka lemena bakeng sa kamohelo. Koala phala ea drainage. Foam e sebelisoa ho koahela mouoane. Fetisetsa koloing ea litanka kapa pokello e khethehileng e nang le pompo e thibelang ho phatloha, ho e sebelisa hape kapa ho e tsamaisa ho ea sebakeng sa kalafo bakeng sa ho lahloa.
Lisebelisoa tsa ho itšireletsa:
Tšireletso ea ho phefumoloha: ha mahloriso a moeeng a feta tekanyo, roala maske a khase (half mask). Ha u pholosa kapa u tloha sebakeng sa tšohanyetso, u lokela ho apara lisebelisoa tsa ho hema moea.
Tšireletso ea letsoho: roala liatlana tse thibelang oli ea rabara.
Tšireletso ea mahlo: roala mahlo a tšireletso a lik'hemik'hale.
Tšireletso ea letlalo le 'mele: apara liaparo tsa mosebetsi tse thibelang chefo.

dr (2)
dr (3)

  • E fetileng:
  • E 'ngoe:

  • Ngola molaetsa wa hao mona mme o re romele wona