Potassium hydroxide / CAS: 1310-58-3
Kev Piav Qhia Luv:
Lub npe khoom: Potassium hydroxide
Hom: ZA-N
CAS: 1310-58-3
MF:KOH
MW: 56.11
QAUV:
Qhov Ceev: 1.450 g/mL ntawm 20 °C
Qhov kub yaj: 52 °F
Cov siv lead ua dawb rhombohedral, cov khoom lag luam yog cov thaiv dawb lossis lub teeb grey lossis pas nrig. Yooj yim yaj hauv dej, yaj hauv ethanol, yaj me ntsis hauv ether.
cov lus qhia tshwj xeeb
| Xyuas cov khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov tsos | dawb flake |
| Potassium hydroxide (KOH) w/% ≥ | 90.0 |
| Potassium carbonate (K₂CO₃) w/% ≤ | 0.5 |
| Cov tshuaj Chlorides (raws li Cl) w/% ≤ | 0.005 |
| Sulfates (raws li SO₄) w/% ≤ | 0.002 |
| Nitrates thiab nitrites (raws li N) w/% ≤ | 0.0005 |
| Phosphates (ua PO₄) w/% ≤ | 0.002 |
| Silicates (raws li SiO₃) w/% ≤ | 0.01 |
| Hlau (Fe) w/% ≤ | 0.0002 |
| Sodium (Na) w/% ≤ | 0.5 |
| Txhuas (Al) w/% ≤ | 0.001 |
| Calcium (Ca) w/% ≤ | 0.002 |
| Nickel (Ni) w/% ≤ | 0.0005 |
| Cov hlau hnyav (xam ua Pb) w/% ≤ | 0.001 |
Kev Siv
Potassium hydroxide, feem ntau hu ua caustic potash lossis potash lye, muaj ob hom kev lag luam: khoom khov thiab kua. Cov khoom khov zoo li cov flakes dawb lossis grey daj, chunks, lossis rods, thaum cov kua yog cov kua daj daj. Nws cov khoom siv tshuaj zoo ib yam li cov sodium hydroxide, muaj zog alkalinity thiab corrosiveness. Nws yooj yim yaj hauv dej thiab tso tawm ntau qhov kub, kuj qhia txog deliquescence, txhais tau tias nws tuaj yeem nqus tau cov dej noo los ntawm huab cua thiab deliquesce, thiab tuaj yeem cuam tshuam nrog carbon dioxide los ua potassium carbonate. Thaum yaj hauv dej, cawv, lossis kho nrog acid, nws tso tawm ntau qhov kub. Ib qho tshuaj 0.1 mol / L muaj pH ntawm 13.5 (anhydrous). Nws muaj tshuaj lom nruab nrab, nrog rau qhov nruab nrab tuag taus (qhov ncauj, nas) ntawm 1230 mg / kg. Tam sim no, potassium hydroxide feem ntau yog siv los tsim potassium carbonate, potassium permanganate, thiab lwm yam, thiab feem ntau siv rau hauv kev lag luam tshuaj lom neeg, khoom noj, tshuaj, thiab kev ua liaj ua teb.
Potassium hydroxide feem ntau yog siv ua cov khoom siv raw rau kev tsim cov ntsev potassium, xws li potassium permanganate thiab potassium carbonate. Hauv kev lag luam tshuaj, nws yog siv los tsim cov potassium borohydride, Antishutong, silybin, progesterone, thiab testosterone propionate. Hauv kev lag luam teeb pom kev zoo, nws yog siv los tsim cov xab npum potassium, cov roj teeb alkaline, thiab cov tshuaj pleev ib ce (xws li cov tshuaj pleev txias, cov tshuaj pleev daus, thiab cov tshuaj zawv plaub hau). Hauv kev lag luam zas xim, nws yog siv los tsim cov xim vat, xws li vat xiav RSN. Hauv kev lag luam electrochemical, nws yog siv rau electroplating, engraving, thiab lwm yam. Hauv kev lag luam textile, nws yog siv rau kev luam ntawv, dyeing, bleaching, thiab mercerizing, thiab nws kuj yog siv dav ua cov khoom siv raw tseem ceeb rau kev tsim cov fibers dag thiab polyester fibers. Tsis tas li ntawd, nws kuj yog siv rau hauv cov neeg sawv cev cua sov metallurgical thiab tawv degreasing, ntawm lwm yam kev siv.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
