Cov khoom
Perchloric acid - HClO4
Siv
Perchloric acid yog siv los ua oxidizer hauv kev sib cais ntawm sodium thiab potassium.
Siv los ua cov khoom tawg.
Siv rau plating ntawm cov hlau.
Siv los ua reagent los txiav txim 1H-Benzotriazole
Siv ua catalyst.
Siv hauv foob pob hluav taws roj.
Siv rau electropolishing los yog etching ntawm molybdenum.
Technical khoom
| SN | Yam khoom |
| Tus nqi |
| 1 | Purity | % | 50-72 : kuv |
| 2 | Chroma, Hazen Units | ≤ | 10 |
| 3 | Cawv insoluble | ≤ | 0.001 ib |
| 4 | Burning residue (raws li sulphate) | ≤ | 0.003 ib |
| 5 | Chlorate (ClO3) | ≤ | 0.001 ib |
| 6 | Chloride (Cl) | ≤ | 0.0001 |
| 7 | Dawb chlorine (Cl) | ≤ | 0.0015 |
| 8 | Sulfate (SO4) | ≤ | 0.0005 |
| 9 | Tag nrho nitrogen (N) | ≤ | 0.001 ib |
| 10 | Phosphate (PO4) | ≤ | 0.0002 |
| 11 | Silicate (SiO3) | ≤ | 0.005 ib |
| 12 | Manganese (Mn) | ≤ | 0.00005 |
| 13 | Hlau (Fe) | ≤ | 0.00005 |
| 14 | Copper (Cu) | ≤ | 0.00001 |
| 15 | Arsenic (As) | ≤ | 0.000005 |
| 16 | Nyiaj (Ag) | ≤ | 0.0005 |
| 17 | Lead (Pb) | ≤ | 0.00001 |
Cov lus nug nquag
Dab tsi yog kev siv ntawm perchloric acid?
Thawj daim ntawv thov ntawm perchloric acid yog nws siv raws li ib tug precursor rau ammonium perchlorate, uas yog ib tug inorganic compound uas yog ib tug tseem ceeb feem ntawm foob pob ua ntxaij roj.Yog li ntawd, perchloric acid yog suav hais tias yog ib qho tseem ceeb heev tshuaj compound nyob rau hauv qhov chaw lag luam.Qhov kev sib xyaw no kuj tseem siv rau hauv etching ntawm cov kua siv lead ua kua zaub tshuab (feem ntau abbreviated rau LCD).Yog li ntawd, perchloric acid yog siv dav hauv kev lag luam hluav taws xob thiab.Cov tshuaj no kuj tseem siv rau hauv kev tshuaj ntsuam chemistry vim nws cov khoom tshwj xeeb.Perchloric acid kuj tseem muaj ntau daim ntawv thov tseem ceeb hauv kev rho tawm cov ntaub ntawv los ntawm lawv cov ore.Tsis tas li ntawd, qhov sib xyaw no tseem siv tau rau hauv etching ntawm chrome.Txij li thaum nws ua raws li cov kua qaub super, perchloric acid yog suav tias yog ib qho ntawm cov muaj zog tshaj plaws Bronsted-Lowry acids.
Yuav ua li cas yog perchloric acid npaj?
Kev tsim khoom lag luam ntawm perchloric acid feem ntau ua raws ib qho ntawm ob txoj kev sib txawv.Thawj txoj kev, feem ntau hu ua txoj kev ib txwm muaj, yog ib txoj hauv kev npaj perchloric acid uas siv cov solubility siab heev ntawm sodium perchlorate hauv dej.Solubility ntawm sodium perchlorate nyob rau hauv dej sib haum mus rau 2090 grams ib liter ntawm chav tsev kub.Kev kho ntawm xws li kev daws ntawm sodium perchlorate hauv dej nrog hydrochloric acid ua rau tsim cov perchloric acid nrog rau precipitate ntawm sodium chloride.Cov concentrated acid no tuaj yeem ua kom huv ntawm cov txheej txheem ntawm distillation.Txoj kev thib ob suav nrog kev siv cov electrodes uas anodic oxidation ntawm chlorine uas yaj hauv dej yuav tshwm sim ntawm platinum electrode.Txawm li cas los xij, txoj kev hloov pauv yog suav tias yog kim dua.
Puas yog perchloric acid txaus ntshai?
Perchloric acid yog ib qho oxidant muaj zog heev.Vim nws cov khoom muaj zog oxidizing, qhov sib xyaw no nthuav tawm cov reactivities siab heev rau feem ntau cov hlau.Tsis tas li ntawd, qhov sib xyaw ua ke no muaj zog heev rau cov organic teeb meem ib yam nkaus.Cov tshuaj no tuaj yeem corrosive rau ntawm daim tawv nqaij.Yog li ntawd, kev ntsuas kev nyab xeeb txaus yuav tsum tau ua thaum tuav cov khoom sib xyaw no.
