Potassium Chloride Cas: 7447-40-7
| Catalog Number | xwm 91858 |
| Khoom npe | Potassium Chloride |
| CAS | 7447-40-7 ib |
| Molecular Formula | ClK |
| Molecular Luj | 74.55 ib |
| Cov ntaub ntawv khaws cia | 2-8 ° C |
| Harmonized tariff Code | 3 1042090 |
Khoom Specification
| Qhov tshwm sim | Dawb crystal hmoov |
| Assay | 99% min |
| Melting point | 770 ° C (lit.) |
| Boiling point | 1420 ° C |
| ceev | 1.98 g / mL ntawm 25 ° C (lit.) |
| Refractive Index | N20/D 1.334 |
| Fp | 1500 ° C |
| solubility | H2O: soluble |
| Specific Gravity | 1.984 ib |
| tsw | Tsis hnov tsw |
| PH | 5.5-8.0 (20 ℃, 50mg / mL hauv H2O) |
| PH Range | 7 |
| Dej Solubility | 340 g / L (20 ºC) |
| lw max | λ: 260 nm Amax: 0.02 L: 280 nm Amax: 0.01 |
| rhiab heev | Hygroscopic |
| Sublimation | 1500 ºC |
| Kev ruaj ntseg | ruaj khov.Incompatible nrog muaj zog oxidizing neeg sawv cev, muaj zog acids.Tiv thaiv los ntawm noo noo.Hygroscopic. |
Potassium chloride (KCl) yog siv rau hauv kev npaj tshuaj thiab ua zaub mov ntxiv thiab tshuaj reagent.Nws tuaj yeem txo cov sodium hauv koj cov zaub mov los ntawm kev hloov cov tshuaj potassium chloride rau cov lus ntsev (sodium chloride), uas yuav ua rau muaj kev noj qab haus huv.Molten potassium chloride kuj tseem siv rau hauv electrolytic zus tau tej cov hlau poov tshuaj.KCl kuj pom muaj nyob rau hauv seawater brine thiab tuaj yeem muab rho tawm los ntawm cov ntxhia carnallite.
Potassium Chloride yog cov khoom noj khoom haus, kev noj haus ntxiv, thiab tus neeg sawv cev gelling uas muaj nyob hauv cov muaju lossis hmoov.Nws muaj ib tug solubility ntawm 1 g nyob rau hauv 2.8 ml ntawm dej ntawm 25 ° C thiab 1 g nyob rau hauv 1.8 ml ntawm boiling dej.hydrochloric acid, thiab sodium chloride thiab magnesium chloride txo nws cov solubility hauv dej.nws yog siv los ua ntsev hloov thiab ntxhia ntxiv.nws muaj kev xaiv siv nyob rau hauv artificially sweetened jelly thiab preserves.Nws yog siv los ua cov poov tshuaj rau qee hom carrageenan gels.nws yog siv los hloov sodium chloride hauv cov khoom noj uas tsis muaj sodium.
Potassium chloride yog ib qho chaw kuaj reagent siv los ua kom cov khoom viscosity hauv cov tshuaj pleev ib ce thiab tshuaj npaj.
Potassium chloride (KCl), feem ntau hu ua muriate ntawm potash, yog qhov feem ntau ntawm potash (K2O), thiab suav txog li 95% ntawm lub ntiaj teb potash ntau lawm.Zoo tag nrho (90%) kev lag luam potash yog muab rho tawm los ntawm tej yam ntuj tso cov poov tshuaj ntsev deposits tshwm sim nyob rau hauv nyias txaj nyob rau hauv loj ntsev basins tsim los ntawm evaporation ntawm ancient seas.Tam sim no-hnub ntsev pas dej thiab ntuj brine sawv cev txog 10% ntawm tag nrho cov potash rov qab tau.Extraction yog ua raws li milling, ntxuav, tshuaj ntsuam, flotation, crystallization, refining thiab ziab.
Ntau tshaj 90% ntawm tag nrho KCl noj yog siv rau kev tsim cov chiv.Kev tsim cov poov tshuaj hydroxide tso nyiaj ntau dua 90% ntawm cov tsis muaj chiv lossis kev siv KCl.KOH kuj tseem siv rau hauv kev tsim cov kua chiv ua liaj ua teb.Kev siv KCl suav nrog:
Potassium chloride (KCl) yog cov ntsev inorganic siv los ua chiv, vim tias kev loj hlob ntawm ntau cov nroj tsuag raug txwv los ntawm lawv cov poov tshuaj kom tsawg.Potassium nyob rau hauv cov nroj tsuag yog ib qho tseem ceeb rau cov kev cai osmotic thiab ionic, plays lub luag hauj lwm tseem ceeb nyob rau hauv cov dej homeostasis thiab yog nyob ze rau cov txheej txheem koom tes nyob rau hauv cov protein synthesis.
Hauv kev yees duab.Hauv cov kev daws teeb meem tsis, electrode hlwb.
Potassium chloride tuaj yeem siv rau kev npaj ntawm phosphate buffered saline, thiab rau kev rho tawm thiab solubilization ntawm cov protein.
Siv rau hauv kev daws teeb meem tsis, tshuaj, kev siv txuj ci, thiab kev ua zaub mov.
Siv rau hauv cov khoom noj khoom haus;gelling tus neeg sawv cev;ntsev hloov;poov mov.
Khoom noj khoom haus / khoom noj khoom haus additives: KCl yog siv los ua cov khoom noj khoom haus thiab / lossis cov khoom noj khoom haus additives.KCl kuj tseem ua cov tshuaj potassium ntxiv ntawm cov tsiaj pub.
Cov khoom siv tshuaj: KCl yog ib qho tseem ceeb ntawm kev kho mob tus neeg sawv cev, uas yog siv feem ntau hauv kev kho mob hypokalemia thiab cuam tshuam rau cov mob.Hypokalemia (potassium deficiency) yog ib yam mob uas yuav ua rau tuag taus uas lub cev tsis khaws cov poov tshuaj txaus los tswj kev noj qab haus huv.
Laboratory tshuaj: KCl yog siv nyob rau hauv electrode hlwb, tsis daws teeb meem, thiab spectroscopy.
drilling av nkos rau kev lag luam roj ntau lawm: KCl yog siv los ua cov cua txias hauv cov roj drilling av thiab ua cov shale stabilizer los tiv thaiv o.
Cov nplaim hluav taws kub hnyiab thiab cov tshuaj tiv thaiv hluav taws: KCl yog siv los ua cov khoom siv hauv cov tshuaj tua hluav taws qhuav.
Anti-freezing agents: KCl yog siv los yaj cov dej khov ntawm txoj kev thiab kev tsav tsheb.
Kwv yees li 4-5% ntawm potash ntau lawm yog siv nyob rau hauv cov ntawv thov kev lag luam (UNIDOIFDC, 1998).Nyob rau hauv 1996, lub ntiaj teb no mov ntawm industrial qib potash yog ze rau 1.35 Mt K2O.Cov khoom lag luam no yog 98-99% ntshiab, piv nrog kev ua liaj ua teb potash specification ntawm 60% K2O yam tsawg kawg nkaus (sib npaug rau 95% KCl).Kev lag luam potash yuav tsum muaj tsawg kawg yog 62% K2O thiab muaj tsawg heev ntawm Na, Mg, Ca, SO4 thiab Br.Cov qib siab potash no tsuas yog tsim los ntawm ob peb tus neeg tsim khoom thoob ntiaj teb.
Potassium hydroxide (KOH), tseem hu ua caustic potash, yog cov khoom loj tshaj plaws K rau kev siv tsis yog chiv.Nws yog tsim los ntawm electrolysis ntawm industrial KCl thiab yog dav siv rau kev tsim soaps, detergents, roj, catalysts, hluavtaws roj hmab, ntais ntawv, dyes thiab tshuaj tua kab.Caustic potash kuj yog cov kua chiv thiab ua cov khoom siv hauv cov roj teeb alkaline thiab cov duab thaij duab ua cov tshuaj.
Potassium hydroxide yog cov khoom siv raw hauv kev tsim ntau K ntsev, feem ntau yog K carbonates, thiab tseem citrates, silicates, acetates, thiab lwm yam. Potassium carbonate confers zoo heev clarity rau iav yog li yog siv rau feem ntau zoo optical lo ntsiab muag, tsom iav, zoo siv lead ua, iav. , chinaware thiab TV tubes.Potassium bicarbonate yog siv ntau hauv cov khoom noj thiab tshuaj lag luam.
Potash-derived compounds thiab ntsev kuj yog siv nyob rau hauv zus tau tej cov hlau fluxes, kho nqaij, tempered steel, ntawv fumigants, rooj plaub hardened steel, bleaching agents, ci hmoov, cream ntawm tartar thiab dej haus.Thoob ntiaj teb, kev lag luam KCl raug kwv yees siv raws li hauv qab no: tshuaj ntxuav tes thiab xab npum, 30-35%;iav thiab ceramics, 25-28%;textiles thiab dyes 20-22%;tshuaj thiab tshuaj, 13-15%;thiab lwm yam kev siv, 7-5% (UNIDO-IFDC, 1998).
Potassium chloride yog ib qho reagent siv dav hauv biochemistry thiab molecular biology.Nws yog ib feem ntawm phosphate buffered saline (PBS, Khoom No. P 3813) thiab ntawm polymerase chain reaction (PCR) buffer (50 mM KCl).
KCl kuj tseem siv rau hauv kev tshawb fawb ntawm ion thauj thiab cov poov tshuaj raws.
KCl kuj tseem siv rau hauv solubilization, extraction, purification, thiab crystallization ntawm cov proteins.
Kev siv KCl hauv crystallization ntawm histone core octamers tau tshaj tawm.
