3 4-Dichlorophenylhydrazinae hydrochloridi-CAS# 19763-90-7)
Periculum et salus
| Periculum Codes | R20/21/22 - Inspiratio noxia, in contactu cum cute et absorpta. R36/37/38 - Irritando ad oculos, systema respiratorium et cutem. |
| Salus Descriptio | S26 - In contactu cum oculis, statim cum aqua multa ablue et consilium quaere medicinae. S37/39 - gere idoneam caestus et oculum/faciem tutelam S36/37/39 - Vestis tutelae, chirothecae et oculi/faciei tutelam idoneam induere. S22 — Pulverem noli spirare. S24/25 – Fuge contactum cum cute et oculis. |
| Consociatione Nationum IDs | 2811 |
| WGK Germania | 3 |
| HS Code* | 29280000 |
| Aleam Nota | Noxia / Irritant |
| Periculum Classis | INRITATIO |
3 4-Dichlorophenylhydrazinum hydrochloridi CAS# 19763-90-7) Informationes
| application | 3, 4-dichlorophenylhydrazinum hydrochloridum est medium pharmaceuticum, quod ad biphenylpyridinem praeparandum adhiberi potest. |
| modum praeparationis | Compositum 3,4-dichloroanilinum (38.88g,0.2399mol) in dichloroethane dissolvitur (30ml), deinde 12mol/L acido hydrochlorico coacto (70ml,0.84mol) additur, sodium nitritum (18.06g,0.261mol) additur; solutio reactionis excitatur ad 5℃ pro 30min, et liquor clarificatus eliquatus est, gutta ad 140ml solutionis sodii sulfiti continens (90.71g,0.7197mol), ad 80℃ circiter 3 horas agere, agere ad producendum 3,4-dichlorophenylhydrazinum, adde circiter (60ml,0.72mol) acidum hydrochloricum coactum horae 1 , pernoctare in cella temperie, colum obtinendum. 3,4-dichlorophenylhydrazinum hydrochloridum solidum album 46.1g, cede: 90%. |
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