4,4'-Diamino-2,2'-stilbenedisulfonic acid CAS 81-11-8
4,4 '- diaminodiphenyl-2,2' - disulfonic acid na cikin aji na stilbene mahadi kuma za a iya shirya ta hydrogenation na nitro maye precursor mahadi. 4,4 '- Diamino-2,2' - stilbenedisilfonic acid ne mai rawaya allura mai siffar hygroscopic crystal. Dan kadan mai narkewa a cikin ruwa, mai narkewa a cikin ethanol da ether, mai sauƙin narkewa a cikin maganin alkaline.
Abu | Ƙayyadaddun bayanai |
pKa | -1.58± 0.50 (An annabta) |
Wurin narkewa | 300 °C |
Yawan yawa | 1.4732 (ƙananan ƙididdiga) |
Matsin tururi | 1.3hPa a 25 ℃ |
MAI RUWANCI | <0.1 g/100 ml a 23ºC |
Refractivity | 1.6510 (ƙididdiga) |
4,4 '- Diamino-2,2' - stilbenedisilfonic acid rini da tsaka-tsaki kamar wakili na fari mai kyalli. 4,4 '- Diamino-2,2' - stilbenedisilfonic acid ana amfani da shi don samar da mai kyalli whitening wakili, kai tsaye daskararre rawaya G da kai tsaye rawaya R, kuma a matsayin kwari.
Yawancin lokaci cushe a 25kg / drum, kuma kuma za a iya yi musamman kunshin.
4,4'-Diamino-2,2'-stilbenedisulfonic acid CAS 81-11-8
4,4'-Diamino-2,2'-stilbenedisulfonic acid CAS 81-11-8