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5-Chloropyridine-2-carboxylic acid(CAS# 86873-60-1)

Āhuatanga matū:

Tātai rāpoi C6H4ClNO2
Molar Mass 157.55
Kiato 1.470±0.06 g/cm3(Te Matapae)
Te Whakarewa 166-171 ℃
Piro Pouri 310.3±22.0 °C(I Matapaetia)
Tohu Kohiko 141.5°C
Kohu Kohu 0.00026mmHg i te 25°C
pKa 3.41±0.10(I Matapaetia)
Tikanga Rokiroki Puritia ki te wahi pouri, Hiri ki te maroke, Te Pawera Rua
Taurangi Refactive 1.59
MDL MFC04114192

Taipitopito Hua

Tohu Hua

Waehere Morearea R20/21/22 – He kino ma te horomia, ka pa ki te kiri me te horomia.
R40 – Nga taunakitanga iti o te paanga mate pukupuku
R22 – He kino ki te horomia
Whakaahuatanga Haumaru S22 – Kaua e pupuhi puehu.
S36 – Mau kakahu whakamarumaru tika.
Tuhipoka morearea He kino
Te akomanga morearea TANGATA

 

Kupu Whakataki

Ko te waikawa (waikawa) he puhui waro me te tauira matū C6H4ClNO2.

 

Taiao:

Ko te waikawa he ma ki te marama kowhai kowhai karaihe totoka me te kakara motuhake. He wairewa i roto i etahi whakarewa waro, penei i te waiwaro, te dimethyl sulfoxide me te dichloromethane, engari he iti te whakarewatanga ki te wai. He pumau ki te hau, ka pirau i te wera nui.

 

Whakamahia:

Ko te waikawa he takawaenga waro nui, e whakamahia nuitia ana i roto i te whakahiato o etahi atu puhui waro. Ka taea te whakamahi i roto i te whakareri pesticides, raau taero, waikano me te ruruku pūhui.

 

Tikanga Whakaritenga:

Ka taea te whakahiato waikawa ma te maha o nga tikanga, ko nga tikanga e whakamahia ana ko enei e rua e whai ake nei:

1. Ka tauhohehia te waikawa 2-picolinic chloride ki te waikawa chloroacetic ki te whakaputa i te hua i whakaritea ma te awhina o te whakakorikori me nga tikanga e tika ana.

2. tauhohehia te mewaro 2-pyridyl ki te waikawa waro puota, katahi ka whakamarohia ki te waikawa kia whiwhi waikawa.

 

Mōhiohio Haumaru:

He iti te paitini o te waikawa, engari me aro tonu ki te mahi haumaru. A ape i te pa tika ki te kiri, ki nga kanohi, ki te ara manawa, ka mau i nga karapu whakamarumaru, nga karaehe me nga kanohi kanohi mena e tika ana. A ape i te pa atu ki nga matū waikura me nga matū muramura i te wa e whakamahia ana me te rokiroki. Me penapena i roto i te wahi maroke, pai-hau, tawhiti atu i te ahi. Mena ka ngongohia, ka ngongohia ranei, me rapu wawe i te rongoa.


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