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2-Methoxy pyrazine(CAS#3149-28-8)

Āhuatanga matū:

Tātai rāpoi C5H6N2O
Molar Mass 110.11
Kiato 1.14 g/mL i te 25 °C (marama)
Piro Pouri 60-61 °C/29 mmHg (marama)
Tohu Kohiko 114°F
Nama JECFA 787
Kohu Kohu 4.24mmHg i te 25°C
Te ahua wai marama
Te taumahatanga motuhake 1.140
Tae Taekore ki Tata kore tae
BRN 2241
pKa 0.53±0.10(I Matapaetia)
Tikanga Rokiroki I hiri ki te maroke, Te Pawera o te rūma
Taurangi Refactive n20/D 1.509(marama)
Āhuatanga ā-tinana, matū hoki He wai kore tae ki te kowhai, he rite te kakano me te kakara o te pīni kaoo. Ira Kohuatanga 61 °c [3866PA (29mmHg)]. Wairewa ki te waiwaro, karekau ki te wai.
Whakamahi Mo te whakamahinga o ia ra, te reka o te kai

Taipitopito Hua

Tohu Hua

Nga Tohu Whakamate Xn – He kino
Waehere Morearea R10 – He mura ahi
R22 – He kino ki te horomia
R37/38 – He whakapataritari ki te punaha manawa me te kiri.
R41 – He kino kino ki nga kanohi
Whakaahuatanga Haumaru S16 – Kia matara atu i nga puna o te mura.
S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
S39 – Mau whakamarumaru kanohi / kanohi.
UN ID UN 1993 3/PG 3
WGK Tiamana 3
TSCA Ae
Waehere HS 29339990
Te akomanga morearea 3
Roopu Tarapi III

 

Kupu Whakataki

Ko te 2-Methoxypyrimidine he pūhui waro. He totoka kiriata ma, he kakara motuhake. E whai ake nei he kupu whakataki mo nga rawa, nga whakamahinga, nga tikanga whakarite me nga korero haumaru o te 2-methoxypyrazine:

 

Kounga:

- Te ahua: Ma te kirikiriata ma

- Wairewa: Ka whakarewahia i roto i te waipiro, te etera me te wairewa ester, he memeha noa ki te wai

 

Whakamahia:

- Ka taea hoki te whakamahi 2-Methoxypyrazine i roto i te ahumahi waikano ki te whakahiato i nga waikano waro.

 

Tikanga:

- Ko te 2-Methoxypyrazine te nuinga o te wa ka whiwhi i te tauhohenga o te 2-hydroxypyrazine me te methanol. Ka tauhohehia te 2-Hydroxypyrazine ki te konutai formate me te konutai waro waro hei hanga i te tote konutai e rite ana, katahi ka taapirihia te mewaro i te taikaha ki te kawe i te tauhohenga i te pāmahana me te wa tauhohenga. Ko te hua 2-methoxypyrazine i whiwhihia e te maimoatanga waikawa, te tioata, te whakamaroke me etahi atu taahiraa.

 

Mōhiohio Haumaru:

- Ko te 2-Methoxypyrazine he mea whakapataritari, me karo i te pa ki te kiri me nga kanohi.

- Kia tupato i te wa e whakamahi ana, penei i te mau kanohi me te whakamarumaru manawa.

- A ape i te hongi, te horo, te pa atu ranei ki te puehu, te hau, te otinga ranei o te puhui.

- Whakaritea nga ahuatanga pai o te hau i te wa e mahi ana.

- Whakaorangia te 2-methoxypyrazine ki tetahi waahi maroke, hauhautanga, hau pai i tawhiti atu i te ahi me nga waikura.

 


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