Isonicotinic acid CAS 55-22-1 yog ib rab koob dawb zoo li siv lead ua. Tsis hnov tsw, sublimable. Molecular hnyav 123.11. Melting point 319 â. Me ntsis soluble hauv dej txias, soluble hauv Chemicalbook dej kub, insoluble hauv cawv, benzene thiab ether. Nws yog ib qho amphoteric compound, ob qho tib si soluble hauv acid thiab soluble hauv alkali. Soluble nyob rau hauv dej kub thiab ethanol, me ntsis soluble nyob rau hauv dej txias thiab ether. Ruaj rau cua sov thiab oxidation.
Ntseeg Tshuaj yog ib tug ua Tuam Tshoj Isonicotinic acid CAS 55-22-1 chaw tsim tshuaj paus, tsum thiab exporter. Ua raws li kev ua raws li cov khoom zoo tshaj plaws, kom peb cov Isonicotinic acid CAS 55-22-1 tau txaus siab los ntawm ntau tus neeg siv khoom. Shandong Ntseeg
Peb zoo ntawm qhov zoo ntawm cov khoom siv tshuaj lom neeg hauv thaj chaw. Peb cov khoom raug xa tawm mus rau Tebchaws Europe, Tebchaws Meskas, Nyiv, Kaus Lim Qab Teb, Sab Hnub Tuaj Asia thiab lwm lub tebchaws thiab cheeb tsam. Nrog rau kev tshawb fawb thiab thev naus laus zis raws li kev qhia, kev ncaj ncees raws li lub hauv paus, zoo li lub neej, thiab tso siab rau lub tswv yim kev lag luam ntawm kev tsim kho tshiab thiab kev loj hlob, peb cia siab tias yuav tsim kev sib pauv thiab kev koom tes nrog cov neeg siv khoom hauv tsev thiab txawv teb chaws los tsim kev vam meej!
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Khoom npe |
Isonicotinic acid |
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Formula |
C6H5 NPO 2 |
Molecular Luj |
123.11 |
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CAS Nr. |
55-22-1 ib |
Ntau |
500 KG |
|
Cov khoom |
Specification |
Cov txiaj ntsig |
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Qhov tshwm sim |
Ua raws |
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Assay |
â € 99% |
99.68% |
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TEEB MEEM |
Qhov tshwm sim ua raws li tus qauv |
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Melting point 300°C (lit.)
Kub taw tes 260 ° C (15mmHg)
Qhov ceev 1.47g / cm3
Refractive index 1.5423 (kwv yees)
Flash point 260 ° C / 15mm
Cia tej yam kev mob no txwv.
Solubility 6g / l
Acidity coefficient (pKa) 4.96 (ntawm 25â ¢ º)
Morphology hmoov
xim yellowtotan
PH tus nqi 3-4 (6g / l, H2O, 20â, saturatedsolution)
Solubility dej 5.2g / L (20ºC)
Isonicotinic acid yog siv dav hauv nruab nrab. Nws yog tsuas yog siv los ua raw khoom ntawm thawj kab tshuaj tiv thaiv kab mob xws li isoniazid (remifon), terfenadine thiab isonicotinate, thiab tseem tuaj yeem siv los ua tus neeg sawv cev tiv thaiv corrosion, electroplating additive, photosensitive agent. Resin stabilizer, PVC kub stabilizer thiab non-ferrous hlau flotation tus neeg saib xyuas, thiab lwm yam. Isoniazid tuaj yeem tau los ntawm condensing isoniazid thiab hydrazine hydrate, thiab melting thiab dehydrating. Isoniazid muaj cov tshuaj tua kab mob zoo rau Mycobacterium tuberculosis, nrog cov nyhuv kho kom zoo, noj me me thiab muaj tshuaj lom tsawg. Nws kuj tseem siv tau rau cov kab mob meningitis thiab lwm yam kab mob extrapulmonary tuberculosis, thiab lwm yam. Cov kev npaj muaj xws li ntsiav tshuaj, txhaj tshuaj, thiab lwm yam.
