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Khoom npe:Phosphoric acid
Molecular hom:H3O4 P
CAS Nr:.7664-38-2 : kuv
Cov khoom siv molecular:
Phosphoric acid yog cov xim tsis muaj xim, tsis muaj ntxhiab, crystalline khoom lossis cov kua qaub tuab. Lub cev lub cev yog lub zog thiab qhov kub thiab txias nyob ntawm.
Concentrated phosphoric acid tshwm sim raws li tsis muaj xim, tsis muaj ntxhiab, syrupy kua. Nws muaj ib tug pleasing acid saj thaum haum diluted.
Pure phosphoric acid, tseem hu ua orthophosphoric acid, yog ib qho ntshiab, tsis muaj xim, ntxhia acid nrog lub zog me ntsis. Nws yog ib txwm ua lag luam raws li cov tshuaj aqueous ntawm 75-85% nyob rau hauv uas nws tshwm sim raws li ib tug ntshiab, viscous kua.
Khoom noj khoom haus qib phosphoric acid yog siv los acidify cov zaub mov thiab dej haus. Nws muab tangy los yog qaub saj thiab, yog ib tug loj-tsim tshuaj, yog muaj nyob rau hauv pheej yig thiab ntau ntau. Phosphoric acid, siv nyob rau hauv ntau yam dej qab zib, tau txuas mus rau txo cov pob txha ceev nyob rau hauv kev tshawb fawb epidemiological. Nyob rau hauv luv luv, phosphoric acid yog ib tug muaj zog acid thiab muaj kev lag luam chemical siv nyob rau hauv lub tsim ntawm ib tug ntau ntawm cov khoom, tshwj xeeb tshaj yog porcelain thiab hlau ntxuav, detergents, thiab fertilisers. Nws kuj yog siv los ua khoom noj khoom haus thiab yog ib qho tseem ceeb ntawm ntau cov dej qab zib. Tsawg phosphate concentrations muaj nyob rau hauv cov dej haus uas nws ntxiv rau hauv qee qhov chaw kom txo tau cov hmoov lead solubility.
Phosphoric acid yog qhov thib ob tsuas yog sulfuric acid raws li cov kua qaub ua lag luam thiab tsis tu ncua ranksin saum 10 cov tshuaj siv thoob ntiaj teb.States, tab sis nws yog siv nyob rau hauv ib tug xov tooj ntawm lwm yam kev siv. Phosphates tau siv los ua cov neeg tsim khoom thiab cov dej softeners. Tus neeg tsim khoom yog ib yam khoom ntxiv rau xab npum lossis tshuaj ntxuav tes kom ua kom lawv lub zog huv.
Phosphoric acid yog siv los ua ib qho nruab nrab hauv kev tsim cov khoom noj tsiaj, tshuaj kho dej, kho cov hlau saum npoo, etching tus neeg sawv cev, thiab cov khoom tu tus kheej xws li tshuaj txhuam hniav. Nws yog siv los ua catalyst hauv kev lag luam roj av thiab polymer. Phosphoricacid yog siv nyob rau hauv cov zaub mov raws li preservative, acidulant, thiab tsw enhancer; nws acidifies carbonateddrinks xws li Coca Cola thiab Pepsi, muab lawv ib tug tangy tsw. Phosphoric acid yog siv los ua arust remover thiab hlau ntxuav. Naval Jelly yog kwv yees li 25% phosphoric acid. Lwm cov kev siv rau phosphoric acid suav nrog kev tswj qhov pom ntawm cov iav ntau lawm, textile dyeing, roj hmab latexcoagulation, thiab kho hniav cements.
Phosphoric acid (H3PO4) yog qhov tseem ceeb tshaj plaws oxoacid ntawm phosphorus thiab nws txoj kev siv tseem ceeb yog hauv kev tsim cov chiv.
Nyob rau hauv tib neeg lub cev, phosphate yog lub ntsiab phosphorus-muaj compound. Phosphate yog ib qho inorganic compound thiab yog ntsev ntawm phosphoric acid. Nws tuaj yeem tsim cov organic esters nrog ntau yam sib txuas thiab cov no tseem ceeb hauv ntau cov txheej txheem biochemical. Phosphate muaj cov mis empirical PO43-. Nws yog tetrahedral molecule, qhov twg lub hauv paus phosphorus atom yog surrounded los ntawm plaub oxygen atoms.
Hauv cov kab ke lom neeg, phosphate feem ntau pom xws li cov ion dawb (inorganic phosphate) lossis ua ester tom qab cov tshuaj tiv thaiv nrog cov organic tebchaw (feem ntau hu ua organic phosphates). Inorganic phosphate (feem ntau txhais tau tias yog Pi) yog sib xyaw ntawm HPO42- thiab H2PO4- ntawm lub cev pH.
Chemwin tuaj yeem muab ntau hom hydrocarbons thiab cov kuab tshuaj tshuaj lom neeg rau cov neeg siv khoom.Ua ntej ntawd, thov nyeem cov lus qhia hauv qab no txog kev ua lag luam nrog peb:
1. Kev ruaj ntseg
Kev nyab xeeb yog peb qhov tseem ceeb tshaj plaws. Ntxiv nrog rau kev muab cov neeg siv khoom paub txog kev nyab xeeb thiab ib puag ncig tus phooj ywg siv peb cov khoom, peb kuj tau cog lus los xyuas kom meej tias kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov neeg cog lus raug txo qis rau qhov tsim nyog thiab ua tau yam tsawg kawg nkaus. Yog li, peb xav kom tus neeg siv khoom kom ntseeg tau tias qhov tsim nyog tshem tawm thiab khaws cov qauv kev nyab xeeb tau ua tiav ua ntej peb xa khoom (thov xa mus rau HSSE appendix nyob rau hauv cov nqe lus dav dav thiab kev muag khoom hauv qab no). Peb cov kws tshaj lij HSSE tuaj yeem muab kev taw qhia txog cov qauv no.
2. Txoj kev xa khoom
Cov neeg siv khoom tuaj yeem xaj thiab xa cov khoom los ntawm chemwin, lossis lawv tuaj yeem tau txais cov khoom los ntawm peb cov chaw tsim khoom. Cov hom kev thauj mus los muaj xws li tsheb thauj mus los, tsheb ciav hlau lossis kev thauj mus los ntau yam (xws li kev sib cais).
Nyob rau hauv cov ntaub ntawv ntawm cov neeg yuav tsum tau, peb muaj peev xwm qhia kom meej qhov yuav tsum tau ntawm barges los yog tankers thiab siv tshwj xeeb kev nyab xeeb / tshuaj xyuas cov qauv thiab cov kev cai.
3. Yam tsawg kawg nkaus kom muaj nuj nqis
Yog tias koj yuav khoom los ntawm peb lub vev xaib, qhov kev txiav txim yam tsawg kawg nkaus yog 30 tons.
4. Kev them nyiaj
Txoj kev them nyiaj tus qauv yog txiav tawm ncaj qha hauv 30 hnub txij li daim ntawv xa nyiaj.
5. Cov ntaub ntawv xa tuaj
Cov ntaub ntawv hauv qab no tau muab nrog rau txhua qhov kev xa khoom:
· Bill of Lading, CMR Waybill lossis lwm yam ntaub ntawv thauj mus los
· Certificate of Analysis los yog Conformity (yog xav tau)
· Cov ntaub ntawv hais txog HSSE raws li txoj cai
· Cov ntaub ntawv kev lis kev cai raws li txoj cai (yog tias xav tau)
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