Oxalic acidcas68603-87-2
kev qhia tshwj xeeb
| Yam | Cov lus qhia |
| Kev tshwm sim | Dawb pob tshab kua |
| Melting taw tes | 189.5°C (Dec.) (Lit.) |
| Kub taw tes | 337.5℃[ntawm 101 325 pah] |
| ceev | 0.99 g / ml ntawm 25 ° C |
| Vapor ceev | 4.4 (vs huab cua) |
| Vapor siab | <0.01mmhg(20℃) |
| Acidity Coefficient (PKA) | 4.43 [ntawm 20℃] |
| Dej solubility | 100g / l ntawm 25℃ |
| Kev Txwv Thaj Chaw | Acgih: Twa 1 mg / m3; Stel 2 mg / m3 |
| Lub cim | 0.162 ntawm 25 ℃ |
| Tag | Cov txiaj ntsig conforms nrog cov qauv kev lag luam |
Kev siv
Cov Oxalic AcidCov qauv kev daws teeb meem yog cov tshuaj pleev oxalic acid tov nrog cov kev paub tseeb thiab yog siv dav hauv cov liaj teb xws li kev tshawb tshuaj tshuaj, kev tsim khoom lag luam, thiab kev tshawb fawb txog kev lag luam. Cov txheej txheem tseem ceeb yog raws li hauv qab no:
Tshuaj ntsuam xyuas tshuaj thiab kev txiav txim siab
- Acid - Qhov tseem ceeb tshaj plaws: oxalic acid yog dibasic qaug zog acid uas tuaj yeem yauv ua nruab nrab nrog cov hauv paus. Nws tuaj yeem raug siv los ua cov txheej txheem acid daws teeb meem los txiav txim siab cov concentration ntawm ib qho tsis paub - concentration alkaline daws. Piv txwv li, thaum muaj feem ntau ntawm cov sodium hydrocide daws, siv cov tshuaj oxalofetrical thiab tus nqi ntawm cov oxalrocid txheem daws tau siv thaum kawg - taw tes ntawm lub tsev pheeb suab.
- Redox Tort: Cov carbon caij hauv oxalic acid muaj qhov valence ntawm +3, qhia kev ceev thiab muaj peev xwm los ua kom muaj zog oxidizing tshuaj nyob rau hauv redox cov tshuaj tiv thaiv. Nyob rau hauv ib qho nruab nrab acidic, sodium oxalate tuaj yeem oxidized los ntawm poov tshuaj permanganate. Siv cov tshuaj tiv thaiv no, cov oxalic acid txheem kev daws teeb meem tuaj yeem siv coj los ua kom haum rau txoj kev muaj tseeb ntawm cov poov tshuaj permanganate daws.
Muaj Cov Tswjhwm Zoo
- Kev kho hlau hlau deg: Hauv cov txheej txheem kev kho cuab cov cuab yeej xws li txhuas, oxalic acid daws tuaj yeem siv rau etching thiab tu. Los ntawm kev siv cov oxalic acid txheem kev daws teeb meem yuav raug tswj hwm kom ua tau zoo thiab ruaj khov ntawm cov khoom lag luam hlau nto. Piv txwv li, los ntawm kev tswj hwm cov kev xav ntawm cov oxalic acid txheem daws tsis pub dhau cov khoom, cov khoom lag luam txhuas tuaj yeem ua kom tau txais cov khaub ncaws zoo nkauj thiab zoo nkauj thiab zoo nkauj.
- Kev lag luam electroplating: Cov Oxalic Acid Style kev daws teeb meem, kom ua tau zoo thiab ua tau zoo ntawm cov txheej electroplated. Yog kev tswj hwm cov oxalic acid mession, ci thiab corrosion ua ntawm cov khoom electroplated, kom paub meej tias cov khoom electroplated raws cov qauv zoo.
Ntim thiab Thauj Khoom
25kg / nruas lossis raws li cov neeg siv khoom.
Shipping: 6 hom khoom txaus ntshai thiab tuaj yeem xa los ntawm dej hiav txwv.
Khaws thiab Cia
Txee lub neej: 24 lub hlis txij hnub ua lag luam hauv cov khoom ntim tsis tau ntim rau hauv qhov chaw txias txias tawm ntawm lub hnub ncaj qha, dej.
Qhov chaw ua kom lub tsev rau khoom, tsis muaj kub kom qhuav ziab, sib cais los ntawm oxidants, acids.
