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huahana

2-5-Dimethyl pyrazine(CAS#123-32-0)

Waiwai Kemika:

ʻĀpana Molekala C6H8N2
Molar Mass 108.14
ʻO ka mānoanoa 0.99 g/mL ma 25 °C (kukui)
Lae hehee 15°C
Lae Boling 155 °C (māmā)
Lae Flash 147°F
Helu JECFA 766
Ka hoʻoheheʻe Chloroform (Lihi), DMSO (Lihi), Methanol (Lihi)
Puʻupuʻu mahu 3.98mmHg ma 25°C
Ka nana aku Waiwai
Kaumaha Kūikawā 0.990
kala kala ʻAʻole waihoʻoluʻu ʻaʻohe melemele ʻeleʻele
BRN 107052
pKa 2.21±0.10(Wanamua)
PH 7 (H2O)
Kūlana Waihona Ka lewa inert, ka wela lumi
Pilikino Hygroscopic
Hōʻike Hōʻike n20/D 1.502(māmā)
Na Waiwai Kino a Kimia ʻO ka mānoanoa 0.99
wahi hoʻolapalapa 155°C
helu hoʻopaʻapaʻa 1.491-1.493
kiko uila 63°C
Hoʻohana Hoʻohana ʻia i ka ʻoihana kala a me ka lāʻau lapaʻau, a hoʻohana ʻia hoʻi e like me ka meaʻai Spice

Huahana Huahana

Huahana Huahana

Nā Code Risk R22 – Poino ke aleia
R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S36 – E komo i nā lole pale kūpono.
UN ID NA 1993 / PGIII
WGK Kelemānia 3
RTECS UQ2800000
TSCA ʻAe
HS Code 29339990
Nānā Hazard Hoʻonanea

 

Hoʻolauna

ʻO ka 2,5-dimethylpyrazine kahi hui kūlohelohe. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o 2,5-dimethylpyrazine.

 

ʻAno maikaʻi:

ʻO 2,5-Dimethylpyrazine kahi kala ʻole i ka aniani melemele māmā me kahi ʻala ʻala, nutty, a me ka ʻala kofe.

 

E hoʻohana:

 

Hanana:

Hiki ke hana ʻia ka hoʻomākaukau ʻana o 2,5-dimethylpyrazine e nā ʻano hana like ʻole. ʻO kahi ala maʻamau ka loaʻa ʻana o ka huahana i manaʻo ʻia e ka ammonolysis o thioacetylacetone a ukali ʻia e ka cyclization. Eia kekahi, aia nā ʻano hana synthesis ʻē aʻe, e like me ka nitroation o nā pūhui kalapona, ka hoʻemi ʻana o ka acyl oxime, etc.

 

ʻIke palekana:

He palekana ka 2,5-Dimethylpyrazine no nā kānaka a me ke kaiapuni ma lalo o nā kūlana hoʻohana maʻamau

- Ke hoʻopili ʻia me ka ʻili a me nā maka, hiki ke hoʻoulu ʻia ka huhū a me ka mumū, a pono e mālama i ka wā e hoʻohana ai, e like me ke komo ʻana i nā mīkina lima pale a me nā maka.

- Hōʻalo i ka hoʻohu ʻana i ke kinoea a i ʻole ka lepo i ka wā e lawelawe ai, no ka mea, ʻo ka hoʻolōʻihi ʻia ʻana e hiki ke hōʻeha i ka hanu.

- Pono e ʻalo ʻia ka pilina me nā mea ʻokiʻekiʻe a me nā ʻakika ikaika i ka wā e mālama ai i mea e pale aku ai i nā hopena ʻino.

- I ka wā e hoʻolei aku ai, e hoʻolei iā ia e like me nā kānāwai kūpono a pale i ka hoʻokuʻu pololei ʻana i ke kaiapuni.

 


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