3 4-Dichlorophenylhydrazine hydrochloride（CAS# 19763-90-7)
Morearea me te Haumaru
| Waehere Morearea | R20/21/22 – He kino ma te horomia, ka pa ki te kiri me te horomia. R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. |
| Whakaahuatanga Haumaru | S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S37/39 – Kia mau nga karapu tika me te whakamarumaru kanohi/kanohi S36/37/39 – Mau kakahu whakamarumaru tika, karapu me te whakamarumaru kanohi/kanohi. S22 – Kaua e pupuhi puehu. S24/25 – A ape i te pa ki te kiri me nga kanohi. |
| UN ID | 2811 |
| WGK Tiamana | 3 |
| Waehere HS | 29280000 |
| Tuhipoka morearea | Kino/Iriri |
| Te akomanga morearea | TANGATA |
3 4-Dichlorophenylhydrazine hydrochloride（CAS# 19763-90-7) Nga korero
| tono | Ko te 3, 4-dichlorophenylhydrazine hydrochloride he takawaenga rongoa ka taea te whakamahi hei whakarite i te biphenylpyridine. |
| tikanga whakarite | ka rewa te pūhui 3,4-dichloroaniline (38.88g,0.2399mol) ki te dichloroethane (30ml), ka tāpirihia te 12mol/L waikawa pūmāota (70ml,0.84mol), konutai nitrite (18.06g,0.261mol) ka tāpirihia, te ka whakakorikoria te otinga tauhohenga i te 5 ℃ mo te 30min, me te whakamarama ka tātarihia te wai, maturuturu ki te 140ml o te wairewa konutai sulfite kei roto (90.71g,0.7197mol), tauhohe i te 80 ℃ mo te 3 haora, tauhohe ki te whakaputa i te 3,4-dichlorophenylhydrazine, tāpirihia te (60ml,0.72mol) waikawa pūhaumāota. mo te 1 haora, whakaohokia mo te po i te pāmahana rūma, tātari kia whiwhi 3,4-dichlorophenylhydrazine hydrochloride ma totoka 46.1g, hua: 90%. |
Tuhia to korero ki konei ka tukuna mai ki a matou
