Phosphoric Acid International Nqe
CAS Naj Npawb: 13598-36-2
Formula﹕H₃PO₃
EINECS: 233-663-1
Lub cev lub cev: dawb crystal
UN: 2834 Ntim: 25KG / hnab
PROSPHOROUS ACID
Phosphorous acid, H₃PO₃, yog dawb, crystalline khoom nyob rau hauv chav tsev kub nrog siab solubility nyob rau hauv dej, tsim ib tug tsis muaj kob, syrupy tov. Nws muaj qhov melting point nyob ib ncig ntawm 73 degree thiab decomposes thaum cua sov saum toj no kub kom tso phosphine (PH₃) thiab phosphoric acid (H₃PO₄). Tshwj xeeb hygroscopic, nws absorbs noo noo los ntawm huab cua. Nws kuj nthuav tawm deliquescence, dissolving nkag mus rau hauv cov kua daim ntawv nyob rau hauv humid tej yam kev mob. Nws cov qauv tsim muaj txheej txheej txheej vim muaj zog hydrogen bonding, uas ua rau nws ruaj khov nyob rau hauv ib lub xeev ruaj khov.
| Cov khoom kuaj | Sawv |
|
Assay (raws li H3PO3) Ntau dua lossis sib npaug rau % |
98.5% Min |
|
Sulfate (raws li SO4) Tsawg dua lossis sib npaug li % |
0.006%Max |
|
Chloride (raws li CL) Tsawg dua lossis sib npaug rau % |
0.01% Max |
|
Phosphate (raws li PO4) Tsawg dua lossis sib npaug li % |
0.1% Max |
|
Hnyav Hlau (Pb) Tsawg dua lossis sib npaug rau % |
0.001%Max |
Phosphorous acid yog dav siv los ua fungicide hauv kev ua liaj ua teb, tshwj xeeb tshaj yog rau kev tswj cov kab mob xws li cov kab mob downy mildew thiab Phytophthora kab mob hauv cov nroj tsuag. Nws txoj kev ua tau zoo los ntawm nws cov khoom siv hauv lub cev, txhais tau tias nws tuaj yeem nqus tau los ntawm cov nroj tsuag thiab muab kev tiv thaiv thoob plaws. Ib zaug hauv cov nroj tsuag, nws cuam tshuam cov cell membranes ntawm cov kab mob fungal, ua rau lawv muaj peev xwm rov tsim dua. Tsis zoo li cov kab mob fungicides uas tsom rau cov enzymes tshwj xeeb, nws muaj qhov tshwj xeeb ntawm kev ua, ua rau nws muaj txiaj ntsig zoo txawm tias tiv thaiv qee hom kab mob fungicide. Tsis tas li ntawd, nws yog biodegradable thiab ua rau muaj kev cuam tshuam ib puag ncig tsawg, ua rau nws muaj koob meej hauv kev ua liaj ua teb ruaj khov.
Ua tsaug rau koj tuaj xyuas thiab txais tos koj cov lus nug zoo!
Cim npe nrov: Tuam Tshoj phosphoric acid thoob ntiaj teb nqe manufacturers, lwm tus neeg, Hoobkas
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