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Chaw tsim tshuaj paus Zoo Nqe Sodium fluoride CAS: 7681-49-4
Sodium fluoride: NaF; SF;Inorganic Fluoride; Molecular Luj: 41.99 Lub cev thiab tshuaj lom neeg: Tsis muaj xim ci ci siv lead ua los yog hmoov dawb, lub ntiajteb txawj nqus 2.25, melting point 993C boiling point 1695C.Soluble hauv dej (solubility 10C366,206 406,300422,40C 4.4.60C468.80-C4.89,100 “C508), hydrogen xib fwb acid, me ntsis soluble hauv cawv.Aqueous tov yog qaug zog alkaline, soluble nyob rau hauv hydrofluoric acid thiab mus rau hauv sodium fluoride, tuaj yeem corrode iav.Toxic!.
Sodium fluoride CAS 7681-49-4 NaF; SF;Inorganic Fluoride;UN NO 1690;Kev phom sij: 6.1
EINECS NO 231-667-8
Khoom npe: Sodium fluorideCAS: 7681-49-4 Nr
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Tuam Tshoj Tus Nqi Zoo Potassium Hydroxide CAS: 1310-58-3
Potassium Hydroxide: Potassium hydroxide (tshuaj formula: KOH, formula kom muaj nuj nqis: 56.11) hmoov dawb los yog flake solid.Lub melting point yog 360 ~ 406 ℃, lub boiling point yog 1320 ~ 1324 ℃, tus txheeb ze ceev yog 2.044g / cm, lub flash point yog 52 ° F, lub refractive index yog N20 / D1.421, lub vapor siab yog 1mmHg (719 ℃).Muaj zog alkaline thiab corrosive.Nws yog ib qho yooj yim kom nqus noo noo nyob rau hauv cov huab cua thiab deliquescence, thiab nqus carbon dioxide rau hauv poov tshuaj carbonate.Soluble nyob rau hauv li 0.6 qhov chaw dej kub, 0.9 qhov chaw dej txias, 3 qhov chaw ethanol thiab 2.5 qhov chaw glycerol.Thaum yaj nyob rau hauv dej, cawv, los yog kho nrog acid, ib tug loj npaum li cas ntawm tshav kub yog generated.pH ntawm 0.1mol / L yog 13.5.Mob toxicity nruab nrab, qhov nruab nrab ntawm kev tuag (nas, qhov ncauj) 1230mg / kg.Soluble hauv ethanol, me ntsis soluble hauv ether.Nws yog heev alkaline thiab corrosive
Potassium Hydroxide CAS 1310-58-3 KOH; UN NO 1813;Hazard Level: 8
Khoom npe: Potassium HydroxideCAS: 1310-58-3 Nr
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Tuam Tshoj Tus Nqi Zoo CalciumAlumina Cement CAS: 65997-16-2
CalciumAlumina Cement yog cement nrog calcium calcium los yog calcium aluminium ua nws cov ntxhia tseem ceeb.Nws yog tsim los ntawm ntuj txhuas los yog muaj alumina thiab calcium carbonate (limestone) raws li ib qho kev faib ua feem, uas yog tsim los ntawm kev kub hnyiab lossis hluav taws xob yaj.
Cov khoom xyaw thiab pawg: CalciumAlumina Cement tuaj yeem muab faib ua aluminium calcium calcium cement (al2O3 53-72%, CAO 21-35%) thiab ntshiab aluminium calcium cement (al2O3 72-82%, CAO 19-23%) Ob pawg.Ordinary aluminium cement cement tuaj yeem muab faib ua hom hlau qis (FE2O3 <2%) thiab high-speed rail hom (Fe2O37-16%).Tsawg-rail-type aluminium-type calcium cement tuaj yeem muab faib ua alum av cement (Al2O353 ~ 56%, CAO 33-35%), aluminium -60 cement (al2O359% rau 61%, CAO 27-31%), thiab qis -calcium aluminium acid cement (Al2O3 65-70%, CAO 21 txog 24%).Ntshiab aluminium calcium cement tuaj yeem muab faib ua ob hom: Al2O3 72-78%) thiab ultra-high aluminium hom (Al2O3 78-85%).Tsis tas li ntawd, muaj qhov ceev thiab tawv thaum ntxov muaj zog aluminium calcium cement.CAS: 65997-16-2 Nr
