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Chaw Tsim Khoom Zoo Tus Nqi 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 siv lead ua ci lossis hmoov dawb, qhov hnyav tshwj xeeb 2.25, qhov taw tes yaj 993C qhov kub npau 1695C. Yaj hauv dej (solubility 10C366,206 406,300422,40C 4.4.60C468.80-C4.89,100 "C508), hydrogen xib fwb acid, me ntsis yaj hauv cawv. Cov kua dej yog alkaline tsis muaj zog, yaj hauv hydrofluoric acid thiab rau hauv sodium fluoride, tuaj yeem corrode iav. Tshuaj lom!.
Sodium fluoride CAS 7681-49-4 NaF; SF; Inorganic Fluoride; UN NO 1690; Qib txaus ntshai: 6.1
EINECS TSIS MUAJ 231-667-8
Lub Npe Khoom: Sodium fluorideCAS: 7681-49-4
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Chaw Tsim Khoom Zoo Nqe Potassium Hydroxide CAS: 1310-58-3
Potassium Hydroxide: Potassium hydroxide (tshuaj mis tshuaj: KOH, tus nqi mis: 56.11) hmoov dawb los yog khoom tawg. Lub ntsiab lus yaj yog 360 ~ 406 ℃, lub ntsiab lus kub yog 1320 ~ 1324 ℃, qhov ceev sib piv yog 2.044g / cm3, lub ntsiab lus flash yog 52 ° F, qhov ntsuas refractive yog N20 / D1.421, lub siab vapor yog 1mmHg (719 ℃). Muaj zog alkaline thiab corrosive. Nws yooj yim nqus cov dej noo hauv huab cua thiab deliquescence, thiab nqus cov pa roj carbon dioxide rau hauv potassium carbonate. Yaj hauv kwv yees li 0.6 feem dej kub, 0.9 feem dej txias, 3 feem ethanol thiab 2.5 feem glycerol. Thaum yaj hauv dej, cawv, lossis kho nrog acid, muaj cua sov ntau heev. Lub pH ntawm 0.1mol / L kua yog 13.5. Kev lom nruab nrab, qhov nruab nrab tuag taus (nas, qhov ncauj) 1230mg / kg. Yaj hauv ethanol, yaj me ntsis hauv ether. Nws yog alkaline heev thiab corrosive
Potassium Hydroxide CAS 1310-58-3 KOH; UN NO 1813; Qib txaus ntshai: 8
Lub Npe Khoom: Potassium HydroxideCAS: 1310-58-3
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Chaw Tsim Khoom Zoo Tus Nqi CalciumAlumina Cement CAS: 65997-16-2
CalciumAlumina Cement yog cov cement uas muaj calcium calcium lossis calcium aluminium ua nws cov khoom tseem ceeb. Nws yog ua los ntawm cov txhuas ntuj lossis alumina kev lag luam thiab calcium carbonate (limestone) raws li qee qhov kev faib ua feem, uas yog ua los ntawm kev hlawv lossis hluav taws xob yaj.
Cov khoom xyaw thiab pawg: CalciumAlumina Cement muaj peev xwm muab faib ua cov txhuas calcium calcium cement (al2O3 53-72%, CAO 21-35%) thiab cov txhuas calcium cement ntshiab (al2O3 72-82%, CAO 19-23%) Ob pawg. Cov txhuas cement cement muaj peev xwm muab faib ua hom hlau qis (FE2O3 <2%) thiab hom tsheb ciav hlau ceev (Fe2O37-16%). Cov txhuas calcium cement hom tsheb ciav hlau qis muaj peev xwm muab faib ua cov av alum cement (Al2O353 ~ 56%, CAO 33-35%), txhuas -60 cement (al2O359% txog 61%, CAO 27-31%), thiab cov txhuas acid cement qis (Al2O3 65-70%, CAO 21 txog 24%). Cov txhuas calcium cement ntshiab muaj peev xwm muab faib ua ob hom: Al2O3 72-78%) thiab hom txhuas siab heev (Al2O3 78-85%). Tsis tas li ntawd, muaj cov txhuas calcium cement ceev thiab tawv thaum ntxov.CAS: 65997-16-2
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Chaw Tsim Khoom Zoo Nqe Stearic acid CAS: 57-11-4
Stearic acid: (qib kev lag luam) Octadecanoic acid, C18H36O2, yog tsim los ntawm hydrolysis ntawm roj thiab feem ntau yog siv rau hauv kev tsim cov stearate
Stearic Acid-829 Stearic acid, Stearic acid yog cov roj fatty acid khov kho uas tau los ntawm cov roj tsiaj thiab cov roj zaub, cov khoom tseem ceeb yog stearic acid (C18H36O2) thiab palmitic acid (C16H32O2).
Cov khoom no yog dawb los yog dawb zoo li hmoov lossis crystalline tawv thaiv, nws cov profile muaj microstrip luster zoo li koob siv lead ua; Nws muaj ib tug me ntsis tsw zoo li roj thiab yog tasteless. Cov khoom no yog soluble nyob rau hauv chloroform los yog diethyl ether, yaj nyob rau hauv ethanol, yuav luag insoluble nyob rau hauv dej. Freezing point Lub freezing point (Ntxiv Ⅵ D) ntawm cov khoom yuav tsum tsis txhob qis dua 54 ℃. Iodine nqi Tus iodine nqi ntawm cov khoom no (Ntxiv Ⅶ H) tsis yog ntau tshaj 4. Acid nqi (Ntxiv Ⅶ H) ntawm cov khoom no yog los ntawm 203 mus rau 210. Stearate yooj yim reacts nrog magnesium thiab calcium ions los ua magnesium stearate thiab calcium stearate (dawb precipitate)
Stearic acid CAS 57-11-4
Lub Npe Khoom: Stearic acidCAS: 57-11-4
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Chaw Tsim Khoom Zoo Tus Nqi Sodium Formate CAS: 141-53-7
Sodium formate yog ib hom hmoov dawb los yog siv lead ua uas nqus tau dej nrog me ntsis tsw ntawm formic acid. Yaj hauv dej thiab glycerin, yaj me ntsis hauv ethanol, yaj tsis tau hauv diethyl ether. Muaj tshuaj lom. Sodium formate siv tau rau hauv kev tsim cov formic acid, oxalic acid, formamide thiab hmoov pov hwm, kev lag luam tawv, chromium tanning method hauv camouflage acid, siv rau hauv catalyst, thiab lwm yam.
Sodium Formate CAS: 141-53-7
Lub Npe Khoom: Sodium FormateCAS: 141-53-7
