Kev siv thiab siv cov xwm txheej ntawm phosphoric acid

Kev siv thiab kev siv scenarios ntawm phosphoric acid,
Phosphoric acid, phosphoric acid manufacturers, phosphoric acid manufacturers pom zoo, phosphoric acid qauv, Phosphoric Acid Supplier, phosphoric acid siv thiab ua haujlwm,
Physicochemical zog:
1. Colorless pob tshab kua, Tsis muaj irritant tsw
2. Melting point 42 ℃; Kub taw tes 261 ℃.
3.Missible nrog dej hauv txhua qhov sib piv

Storge:
1. Khaws rau hauv qhov chaw txias, cua txias.
2. Khaws kom deb ntawm qhov hluav taws kub thiab cua sov.
3. Lub pob yog kaw.
4. Nws yuav tsum tau muab cais los ntawm yooj yim (combustible) combustibles, alkalis, thiab active hlau hmoov, thiab tsis txhob sib tov cia.
5. Qhov chaw cia khoom yuav tsum tau nruab nrog cov ntaub ntawv tsim nyog kom muaj cov xau.

Phosphoric acidrau Industrial siv
Cov lus qhia zoo (GB / T 2091-2008)

Khoom noj khoom haus additives phosphoric acid
Cov lus qhia zoo (GB / T 1886.15-2015)

Siv:
Kev ua liaj ua teb siv: raw khoom ntawm phosphate fertilizer thiab pub cov as-ham
Kev lag luam siv: chemical raw khoom
1. Tiv thaiv cov hlau los ntawm corrosion
2.Mixed nrog nitric acid ua tshuaj polishing tus neeg saib xyuas kom txhim kho qhov chaw tiav ntawm cov hlau
3.Material ntawm phosphatide uas yog siv los tsim cov khoom siv ntxhua khaub ncaws thiab tshuaj tua kab
4.Kev tsim cov phosphorus uas muaj cov ntaub ntawv flameretardant.
Khoom noj khoom haus additives siv: acidic flavoring, Poov Nutri-ents, xws li coca-cola.
Kev siv kho mob: los tsim cov tshuaj uas muaj phos-phorus, xws li Na 2 Glycerophosphat

Phosphoric acid los yog orthophosphoric acid, tshuaj formula H3PO4, molecular hnyav 97.9724, yog ib hom inorganic acid, yog nruab nrab muaj zog acid. Nws yog tau los ntawm dissolving phosphorus tetroxide nyob rau hauv dej kub. Orthophosphoric acid tau txais kev lag luam los ntawm kev kho apatite nrog sulfuric acid. Phosphoric acid dehydrates yooj yim hauv huab cua. Thaum tshav kub kub poob dej rau pyrophosphoric acid, thiab ntxiv poob dej rau metaphosphate. Phosphoric acid feem ntau yog siv hauv tshuaj, zaub mov, chiv thiab lwm yam lag luam, thiab tseem tuaj yeem siv los ua tshuaj reagent.
Khoom siv
Orthophosphate yog phosphoric acid tsim los ntawm ib qho phospho-oxygen tetrahedron. Nyob rau hauv phosphoric acid molecule, P atom yog sp3 hybridized, peb hybrid orbitals tsim peb sigma bonds nrog oxygen atom, thiab lwm yam P-O daim ntawv cog lus yog tsim los ntawm ib tug sigma daim ntawv cog lus los ntawm phosphorus rau oxygen thiab ob d-pπ bonds los ntawm oxygen rau phosphorus. Ib daim ntawv cog lus sigma yog tsim los ntawm kev sib koom ua ke ntawm ib leeg ib khub ntawm electrons los ntawm phosphorus atom mus rau qhov chaw seem ntawm lub atom ntawm oxygen. d←p ​​daim ntawv cog lus yog tsim los ntawm kev sib tshooj ntawm py thiab pz ntawm cov pa oxygen atoms nrog dxz thiab dyz tsis muaj orbitals ntawm phosphorus atoms. Txij li thaum lub zog 3d ntawm phosphorus atoms ntau dua li 2p lub zog ntawm oxygen atoms, cov molecular orbitals tsis zoo heev, yog li cov PO bonds yog triple bonds nyob rau hauv cov nqe lus ntawm tus lej, tab sis nruab nrab ntawm ib thiab ob daim ntawv cog lus nyob rau hauv cov nqe lus ntawm daim ntawv cog lus zog. thiab daim ntawv cog lus ntev. Lub xub ntiag ntawm hydrogen bonds nyob rau hauv ob qho tib si ntshiab H3PO4 thiab nws cov crystalline hydrates yuav suav rau viscosity ntawm phosphoric acid tov.

Daim ntawv thov teb
Kev Ua Liaj Ua Teb: Phosphoric acid yog cov khoom siv raw rau kev tsim cov phosphate chiv tseem ceeb (calcium superphosphate, potassium dihydrogen phosphate, thiab lwm yam), thiab tseem siv rau kev tsim cov khoom noj pub mis (calcium dihydrogen phosphate).

Kev lag luam: Phosphoric acid yog ib qho tseem ceeb tshuaj raw khoom. Nws lub luag haujlwm tseem ceeb yog raws li hauv qab no:

Kho cov hlau saum npoo los tsim ib qho insoluble phosphate zaj duab xis ntawm cov hlau nto los tiv thaiv cov hlau los ntawm corrosion.
Siv los ua cov tshuaj txhuam hniav sib xyaw nrog nitric acid los txhim kho qhov ua tiav ntawm cov hlau.
Kev tsim cov tshuaj detergent, tshuaj tua kab raw khoom phosphate ester.
Cov khoom siv raw rau kev tsim cov phosphorous nplaim retardants.
Khoom noj khoom haus: Phosphoric acid yog ib qho ntawm cov khoom noj khoom haus additives, nyob rau hauv cov khoom noj raws li ib tug qaub tsw tus neeg sawv cev, poov xab tus neeg saib xyuas, Coca-Cola muaj phosphoric acid. Phosphates tseem yog cov khoom noj khoom haus tseem ceeb thiab tuaj yeem siv los ua cov khoom noj ntxiv.

Tshuaj: Phosphoric acid tuaj yeem siv los ua cov tshuaj phosphorous, xws li sodium glycerophosphate.