Properties thiab kev siv ntawm phosphoric acid
Cov khoom thiab kev siv ntawm phosphoric acid,
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1. Cov ntaub ntawv yooj yim
Cov mis mos molecular: H3PO4
Cov ntsiab lus: Muaj qib phosphoric acid (85%, 75%) Khoom noj khoom haus qib phosphoric acid (85%, 75%)
Molecular Luj: 98
CAS Nr .: 7664-38-2
Muaj peev xwm ntau lawm: 10,000 tons / xyoo
Ntim: 35Kg yas chim, 300Kg yas chim, tuj chim
2. Cov khoom lag luam zoo
3. Siv
Kev ua liaj ua teb: Phosphoric acid yog ib qho tseem ceeb raw khoom rau zus tau tej cov phosphate chiv (superphosphate, poov tshuaj dihydrogen phosphate, thiab lwm yam) raw cov ntaub ntawv.
Kev lag luam: Phosphoric acid yog ib qho tseem ceeb ntawm cov khoom siv raw, thiab nws cov haujlwm tseem ceeb yog raws li hauv qab no:
1. Kho cov hlau nto thiab tsim cov phosphate zaj duab xis insoluble ntawm cov hlau nto los tiv thaiv cov hlau los ntawm corrosion.
2. Sib xyaw nrog nitric acid ua cov tshuaj txhuam hniav los txhim kho qhov smoothness ntawm cov hlau nto.
3. Phosphate esters, raw khoom rau kev tsim cov tshuaj detergents thiab tshuaj tua kab.
4. Cov khoom siv raw rau kev tsim cov phosphorus-muaj cov nplaim hluav taws
Khoom noj khoom haus: Phosphoric acid yog ib qho ntawm cov khoom noj ntxiv. Nws yog siv nyob rau hauv cov zaub mov raws li ib tug qaub neeg sawv cev thiab poov xab nutrient. Coca-Cola muaj phosphoric acid.Phosphate kuj yog ib qho khoom noj khoom haus tseem ceeb thiab tuaj yeem siv los ua zaub mov noj.
Daim ntawv thov
Kev ua liaj ua teb: Phosphoric acid yog ib qho tseem ceeb raw khoom rau zus tau tej cov phosphate chiv (superphosphate, poov tshuaj dihydrogen phosphate, thiab lwm yam), tab sis kuj rau zus tau tej cov as-ham (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:
1. Kho cov hlau nto thiab tsim cov phosphate zaj duab xis insoluble ntawm cov hlau nto los tiv thaiv cov hlau los ntawm corrosion.
2. Sib xyaw nrog nitric acid ua cov tshuaj txhuam hniav, txhawm rau txhim kho qhov tiav ntawm cov hlau nto.
3. Kev tsim cov tshuaj ntxuav tes, tshuaj tua kab raw khoom phosphate ester.
4. Kev tsim cov khoom siv raw uas muaj phosphorous nplaim retardant.
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 uas tuaj yeem siv los ua cov khoom noj
Ib qho ntxiv.
hosphoric acid yog nruab nrab muaj zog acid, thiab nws cov crystallization point (kub point) yog 21 ℃. Thaum qhov kub thiab txias qis dua qhov no, cov khoom siv hluav taws xob semi-aqueous (ice) crystals yuav precipitated. Crystallization yam ntxwv: siab phosphoric acid concentration, siab purity, siab crystallinity.
Phosphoric acid crystallization yog lub cev tsis yog kev hloov tshuaj. Nws cov khoom siv tshuaj yuav tsis hloov pauv los ntawm crystallization, qhov zoo ntawm phosphoric acid yuav tsis cuam tshuam los ntawm crystallization, tsuav yog muab kub yaj lossis dej kub dilution, nws tseem tuaj yeem siv tau ib txwm.
Khaws nyob rau hauv qhov kub thiab txias, qhuav, zoo ventilated warehouse, deb ntawm hluav taws kub, qhov chaw tshav kub. Ntim ntim thiab khaws cia cais ntawm alkalis, zaub mov thiab pub.
Thaum lub sij hawm kev thauj mus los, xyuas kom meej tias lub pob yog kaw tag nrho. Nws yog txwv tsis pub thauj khoom ua ke nrog zaub mov thiab pub.
