Melemele ʻeleʻele wai ʻawaʻawa 1,4-butynediol Kiʻi Hōʻike ʻia

Melemele ʻeleʻele wai ʻona nui 1,4-butynediol

ʻO ka wehewehe pōkole:

1,4-butynediol paʻa, kemika C4H6O2, keokeo orthorhombic kristal.Hiki ke hoʻoheheʻe ʻia i ka wai, ka waikawa, ka ethanol a me ka acetone, hiki ʻole ke hoʻoheheʻe ʻia i ka benzene a me ka etera.Hiki iā ia ke hoʻonāukiuki i ka mucous membrane, ka ʻili a me ka ʻōpū hanu luna o nā maka.I ka ʻoihana, hoʻomākaukau nui ʻia ka paʻa 1,4-butynediol e ke ʻano Reppe, catalyzed e butynediol copper a i ʻole copper bismuth catalyst, a hoʻomākaukau ʻia e ka hopena o ka acetylene a me formaldehyde ma lalo o ke kaomi (1 ~ 20 bar) a me ka hoʻomehana (110 ~ 112 ° C) .Loaʻa ka butynediol crude ma o ka pane ʻana, a loaʻa ka huahana i hoʻopau ʻia ma o ka noʻonoʻo ʻana a me ka hoʻomaʻemaʻe.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Hōʻike huahana

1, 4 butynediol hoʻohana nui:no ka synthesis organik, i hoʻohana ʻia e like me ka electroplating brightener.

Hiki ke hoʻohana ʻia ka 1,4-butynediol e hana i ka butene glycol, butanediol, n-butanol, dihydrofuran, tetrahydrofuran γ- Hiki ke hoʻohana hou ʻia ke ʻano o nā huahana organik koʻikoʻi e like me butyrolactone a me pyrrolidone e hana i nā plastic synthetic, fiber synthetic (nylon-4). ), ka ʻili hana, lāʻau lapaʻau, pesticides, solvents (N-methyl pyrrolidone) a me nā preservatives.

ʻAno:keʻokeʻo a ʻulaʻula melemele keʻokeʻo keʻokeʻo rhombic keʻokeʻo (melemele māmā ma hope o ka hoʻoheheʻe ʻia ʻana o ka makū)_ kiko: 58 ℃ Lae paila 238 ℃，145 ℃（2kPa）flash_ Point 152 ℃ kuhikuhipuu hoʻoheheʻe 1.450 solubility hiki ke hoʻoheheʻe ʻia i ka wai, wai ʻakika, ethanol a hiki ke hoʻoheheʻe iki i loko. chloroform, insoluble i loko o benzene a me nā waiwai ʻē aʻe butynediol paʻa maʻalahi ke hoʻoheheʻe ʻia i ka ea ma 25 ° C, loaʻa nā waiwai kemika o ka waiʻona kumu mua, a hiki ke hoʻokō i ka hopena hoʻohui.

Nā pōʻino kino a me nā kemika:inā loaʻa ka wela nui, ke ahi hāmama a i hui pū ʻia me ka oxidant, aia ka pilikia o ka puhi ʻana a me ka pahū ma o ka friction a me ka hopena.I ka wela kiʻekiʻe, inā hoʻohaumia ʻia e ka paʻakai mercury, ka waikawa ikaika, ka metala honua alkaline, hydroxide a me ka halide, hiki ke pahū.

Nā mālama mālama:hale kūʻai i loko o kahi hale kūʻai anuanu a me ka ea.E mālama i ke ahi a me ke kumu wela.Hoʻopaʻa pūʻolo.E mālama kaʻawale ia mai nā oxidants, alkalis a me nā kemika hiki ke ʻai, a ʻaʻole ʻae ʻia ka waiho ʻana i hui ʻia.Pono e hoʻohana ʻia nā kukui pahū a me nā hale ea.ʻAʻole ʻae ʻia ka hoʻohana ʻana i nā mea hana mechanical a me nā mea hana maʻalahi e hana i nā huna huna.Pono e hoʻolako ʻia ka wahi mālama me nā mea kūpono e loaʻa ai ka leakage.

Hoʻolako kiko o Henan Haiyuan Fine Chemical Co., Ltd.:1,4-butynediol paʻa, hou me ka deliquescence, maikaʻi maikaʻi.

Mua: 1,4 butynediol paʻa huahana ʻoi aku ka maikaʻi

Aʻe: 3-chloropropyne waihoʻoluʻu ʻona ʻona wai ʻona

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