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3 5-Dichloro-4-hydroxybenzoic acid(CAS# 3336-41-2)

Āhuatanga matū:

Tātai rāpoi C7H4Cl2O3
Molar Mass 207.01
Kiato 1.5281 (whakatau tata)
Te Whakarewa 264-266 °C (marama)
Piro Pouri 297.29°C (whakatau tata)
Tohu Kohiko 152.3°C
Wairewa DMSO (Paku), Methanol (Paku)
Kohu Kohu 7.79E-05mmHg i te 25°C
Te ahua Mārō
Tae Ma ki Off-White
BRN 2616297
pKa 3.83±0.10(I Matapaetia)
Tikanga Rokiroki Te hau hau, Te Pamahana rūma
Taurangi Refactive 1.4845 (whakatau tata)
MDL MCD00002550
Āhuatanga ā-tinana, matū hoki Kiriata ma. Ira whakarewa 268-269 ℃.
Whakamahi Ka whakamahia hei takawaenga ki te whakahiato waro

Taipitopito Hua

Tohu Hua

Nga Tohu Whakamate Xi – Irritant
Waehere Morearea 36/37/38 – 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
WGK Tiamana 3
RTECS DG7502000
Waehere HS 29182900

 

Kupu Whakataki

Ko te waikawa 3,5-Dichloro-4-hydroxybenzoic he pūhui waro. E whai ake nei he kupu whakataki mo ona rawa, ona whakamahinga, tikanga hanga me nga korero haumaru:

 

Kounga:

- Te ahua: Ko te waikawa 3,5-Dichloro-4-hydroxybenzoic he taekore ki te paura tioata ma.

- Wairewa: Ka whakarewahia i roto i etahi whakarewa pararopi penei i te waipiro me te etera, engari he iti ake te whakarewatanga ki te wai.

 

Whakamahia:

 

Tikanga:

- 3,5-Dichloro-4-hydroxybenzoic acid ka taea te whiwhi ma te chlorination o te waikawa parahydroxybenzoic. Ko te tikanga motuhake ko te whakahoki i te waikawa hydroxybenzoic me te thionyl chloride hei whakakapi i te ngota hauwai i runga i te roopu hydroxyl me nga ngota chlorine i raro i nga tikanga waikawa ma te whakakapi i nga katote hauota.

 

Mōhiohio Haumaru:

- Nga paanga ki te hauora o te tangata: Ko te waikawa 3,5-dichloro-4-hydroxybenzoic kaore he tino kino ki te hauora o te tangata i raro i nga tikanga whakamahi.

- Aukati i te pa atu: I te wa e whakahaere ana i tenei puhui, karohia te pa ki waenga i te kiri me nga kanohi, me te mahi i roto i te waahi pai te hau.

- Whakatupatotanga mo te rokiroki: Me penapena ki tetahi waahi maroke, hauhautanga me te hau, kia matara atu i te ahi me nga mura ahi.


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