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2 4-Difluorobenzaldehyde (CAS # 1550-35-2)

Āhuatanga matū:

Tātai rāpoi C7H4F2O
Molar Mass 142.1
Kiato 1.299 g/mL i te 25 °C (marama)
Te Whakarewa 2-3 °C (marama)
Piro Pouri 65-66 °C/17 mmHg (marama)
Tohu Kohiko 131°F
Kohu Kohu 123mmHg i te 25°C
Te ahua Te paura ma
Te taumahatanga motuhake 1.299
Tae Maama kore tae
BRN 2243422
Tikanga Rokiroki Ko te hau hau,2-8°C
Tairongo Te rangi tairongo
Taurangi Refactive n20/D 1.498(marama)
MDL MCD00010326
Āhuatanga ā-tinana, matū hoki Te wai marama kore tae

Taipitopito Hua

Tohu Hua

Morearea me te Haumaru

Nga Tohu Whakamate Xi – Irritant
Waehere Morearea R10 – He mura ahi
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.
S36 – Mau kakahu whakamarumaru tika.
S37/39 – Kia mau nga karapu tika me te whakamarumaru kanohi/kanohi
S16 – Kia matara atu i nga puna o te mura.
S36/37 – Mau kakahu whakamarumaru me nga karapu tika.
UN ID UN 1989 3/PG 3
WGK Tiamana 3
FLUKA BRAND F CODES 10-23
Waehere HS 29130000
Tuhipoka morearea Whakariri
Te akomanga morearea 3
Roopu Tarapi III

 

Kupu Whakataki
Ko te 2,4-Difluorobenzaldehyde he pūhui waro. E whai ake nei he kupu whakataki mo ona rawa, ona whakamahinga, tikanga hanga me nga korero haumaru:

 

Kounga:
- Te ahua: He wai kore tae, he kowhai ranei.
- Te wairewa: te whakarewa i roto i nga whakarewa pararopi penei i te waipiro, te etera me te waiwaro maota.

 

Whakamahia:
- Ka whakamahia te 2,4-Difluorobenzaldehyde hei takawaenga i roto i te whakahiato o etahi atu puhui waro.
- Nga tono nui i roto i te whakahiatotanga o etahi kaikorero whakaahua.

 

Tikanga:
Ko te 2,4-difluorobenzaldehyde i te nuinga o te waa ka mahia e nga tikanga e whai ake nei:
- Ka taea te whiwhi ma te tauhohe i te benzaldehyde me te hauwai fluoride, te tikanga i te 40-50°C.
- Ka taea hoki te whakarite ma te tauhohe ki te chlorobenzaldehyde me te hydrogen fluoride me te fluorosilanes.

 

Mōhiohio Haumaru:
- Ko te 2,4-Difluorobenzaldehyde pea ka whakapataritari ki te kiri, nga kanohi, me te punaha manawa. Ko nga taputapu whakamarumaru e tika ana, penei i nga karapu, motiuri, me te whakamarumaru manawa me mau i te wa e whakamahi ana, e whakahaere ana ranei.
- Me penapena atu i te ahi me te wera nui, ki te waahi hauhautanga, maroke, whai hau pai, kia wehe ke atu i nga mea hāora me nga matū kawakore kaha.
- Matakitaki me te whai i nga tikanga whakahaere haumaru e tika ana i mua i te whakamahi.

 


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