2-Methoxy-5-nitro-4-picolin（CAS# 6635-90-1)
| Waehere Morearea | R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. R41 – He kino kino ki nga kanohi R37/38 – He whakapataritari ki te punaha manawa me te kiri. R22 – He kino ki te horomia |
| 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 S39 – Mau whakamarumaru kanohi / kanohi. |
| WGK Tiamana | 3 |
| Te akomanga morearea | TANGATA |
Kupu Whakataki
He pūhui waro me te tātai matū C8H9NO3. Ko nga korero e whai ake nei mo tona ahuatanga, te whakamahinga, te whakarite me nga korero haumaru:
Taiao:
-Whakaahua: He toka toka kowhai ki te kowhai marama.
-Ko te whakarewatanga: He tata korekore ki te wai, engari he pai ake te whakarewatanga i roto i nga whakarewa waro penei i te ethanol me te dimethylformamide.
-Ira whakarewa: 72-75 nekehanga Celsius te ira whakarewa.
Whakamahia:
-Te whakahiato matū: He pūhui takawaenga e whakamahia nuitia ana ka taea te whakamahi ki te whakahiato i etahi atu pūhui waro.
-Rangahau: Ka taea te whakamahi mo nga tauhohenga whakahiato waro me etahi atu rangahau taiwhanga.
Tikanga Whakaritenga:
Ka taea te whakahiato ma nga mahi e whai ake nei:
1. Tuatahi, ka whiwhihia te 2-methyloxy-5-nitropyridine ma te tauhohe i te 2-methyloxy-5-nitropyridine me te waikawa nitric.
2. Ka tauhohehia te 2-methoxy-5-nitropyridine me te reagent methylating (pēnei i te methyl sodium iodide) kia whiwhi ai i te hua whakamutunga.
Mōhiohio Haumaru:
He iti nga raraunga haumaru, engari he paitini ki te tangata me te taiao. Ina whakamahi, me whai i nga tikanga taiwhanga e tika ana, me te whai i nga tikanga tiaki whaiaro e tika ana, penei i te mau karaehe whakamarumaru me nga karapu. I tua atu, me penapena te puhui me te tuku tika kia kore ai e poke te taiao.
