Potassium iodate hmoov rau cov khoom noj khoom haus qib tshuaj qib reagent qib
Kev piav qhia txog khoom
Lub Npe Khoom: Potassium iodate
Kev huv huv: 99.5%;
CAS:7758-05-6
MF: IKO3
MW:214
EINECS:231-831-9
Melting point: 560 °
Tsos: Dawb los yog off-white hmoov / crystalline khoom
Potassium iodate yog ntsev nplua nuj iodine nrog cov mis KIO3. Hauv huab cua kub thiab noo noo, cov pa iodine raug hydrolyzed vim yog qhov hygroscopicity ntawm potassium iodide. Piv rau potassium iodide, potassium iodate ruaj khov dua thiab muaj lub sijhawm khaws cia ntev dua. Nws yog ib qho muaj zog thaiv kev nqus iodine los ntawm cov qog thyroid.
Cov Khoom Siv
Potassium iodate yog ib hom monoclinic crystalline uas tsis muaj xim los yog dawb crystalline hmoov. Tsis muaj ntxhiab. Yaj hauv dej, dilute acid, ethylenediamine, ethanolamine, thiab potassium iodide aqueous solutions; yaj me ntsis hauv cov kua sulfur dioxide; tsis yaj hauv cawv thiab ammonia.
Cov siv lead ua tsis muaj xim lossis hmoov dawb; cov qauv monoclinic; qhov ceev 3.90 g / cm3; ruaj khov ntawm qhov kub thiab txias; yaj ntawm 560 ° C nrog ib feem decompose-sition, tso cov pa oxygen; me ntsis soluble hauv dej txias; 4.74 g / 100mL ntawm 0 ° C; solubility ntau dua hauv dej npau 32.3 g / 100mL ntawm 100 ° C; soluble hauv potassium iodide kua; insoluble hauv cawv thiab kua ammonia.
Daim Ntawv Thov
1) Potassium Iodate yog ib qho chaw ntawm iodine uas ua los ntawm kev sib xyaw iodine nrog potassium hydroxide. Nws yog ib qho hmoov crystalline uas ruaj khov dua li iodide. Nws muaj qhov solubility ntawm 1 g hauv 15 ml dej. Nws yog siv ua cov khoom ua kom cov khoom noj sai sai; nws yog siv nrog potassium bromate ua tus neeg sawv cev oxidizing los hloov cov protein hauv hmoov qhob cij uas txhawb nqa qhov ntim thiab cov duab ntawm lub ncuav mog qab zib. Nws yog siv rau hauv cov khoom ci.
2) Potassium iodate yog ib qho tshuaj oxidizing muaj zog heev uas siv tau rau hauv kev sim ntau yam tshuaj, piv txwv li: benzalkonium chloride, cetrimide, hydralazine hydrochloride, potassium iodide, phenylhydrazine hydrochloride, semicarbazide hydrochloride thiab lwm yam. Nyob rau hauv cov kev sim tsim nyog, iodate reacts nrog ob qho tib si iodides thiab iodine. Txawm li cas los xij, nws yog qhov nthuav kom pom ntawm no tias cov iodate titrations yuav ua tau zoo nyob rau hauv qhov muaj cov organic acids saturated, cawv thiab ntau lwm yam organic tshuaj.
Cov txheej txheem oxidation-reduction nrog potassium iodate yeej ib txwm ua raws li kev tsim cov iodine monochloride (ICl) hauv cov tshuaj hydrochloric acid muaj zog.
3) Iodine tuaj yeem ntxiv rau hauv ntsev hauv daim ntawv ntawm potassium iodide (KI) lossis potassium iodate (KIO3). Vim tias KIO3 muaj kev ruaj khov siab dua nyob rau hauv qhov muaj cov ntsev tsis huv, av noo, thiab cov ntim khoom uas muaj qhov me me, nws yog daim ntawv pom zoo.
Potassium iodate, uas yog tsim los ua cov khoom thib ob, yog txo los ntawm cov pa roj carbon activated. Cov khoom yog purified los ntawm crystallization los ntawm dej. Xwb, hlau (II) iodide, npaj los ntawm kev siv hmoov hlau thiab iodine, tuaj yeem kho nrog potassium carbonate kom tau txais potassium iodide. High-purity potassium iodide tuaj yeem npaj los ntawm kev sib xyaw ntawm potassium bicarbonate nrog hydriodic acid.
Cov ntaub ntawv txog kev thauj mus los
Tus lej UN: 1479
Chav Kawm Txaus Ntshai: 5.1
Pawg Ntim Khoom: II
Tus lej HS: 28299080
Pom zoo cov khoom
Cov Lus Qhia Tshwj Xeeb
| Yam khoom ntawm kev tshuaj xyuas | Tus Qauv | Cov txiaj ntsig ntawm kev tshuaj xyuas |
| Kev piav qhia | Dawb los yog dawb hmoov / crystalline khoom | Ua raws li |
| Poob ntawm qhov ziab% | ≤0.5% | 0.03% |
| Kuv (%) ≤ | 0.0019% | <0.002% |
| CLO3 (%) ≤ | 0.01% | <0.01% |
| SO4 (%) ≤ | Ua raws li | Ua raws li |
| Hlau hnyav (Pb) (%) ≤ | <0.001% | <0.001% |
| PH | 5~8 | 6.0 |
| Raws li (%) ≤ | ≤0.0003% | <0.0003% |
| Kev Ntsuas | KIO3≥99.0% | 99.5% |
