He aha ka glacial acetic acid
He aha ka glacial acetic acid,
ʻAkaʻakika Glacial, hana acetic acid glacial, ʻO nā mea hana acetic acid glacial, ʻO ka hoʻohana a me ka hopena o ka waika acetic glacial,
ʻO ka ʻōlelo kikoʻī (GB/T 1628-2008)
Nā mea hoʻokalakala | Hōʻike | ||
Papa Kiekie | Papa Ekahi | Papa maʻamau | |
Ka nana aku | Maʻemaʻe a ʻaʻohe mea i hoʻopaʻa ʻia | ||
Kala (Pt-Co) | ≤10 | ≤20 | ≤30 |
ʻIke % | ≥99.8 | ≥99.5 | ≥98.5 |
wai % | ≤0.15 | ≤0.20 | —- |
ʻO ka ʻakika Formic % | ≤0.05 | ≤0.10 | ≤0.30 |
acetaldehyde % | ≤0.03 | ≤0.05 | ≤0.10 |
Ke koena mahuka % | ≤0.01 | ≤0.02 | ≤0.03 |
Hao(Fe) % | ≤0.00004 | ≤0.0002 | ≤0.0004 |
Manawa Permanganate min | ≥30 | ≥5 | —- |
Nā waiwai physicochemical:
1. ʻO ka wai kala ʻole a me ka dour hoʻonāukiuki.
2. Ka helu hehee 16.6 ℃; wahi paila 117.9 ℃; Kaila uila: 39 ℃.
3. ʻAʻole hiki ke hoʻoheheʻe ʻia ka wai, ethanol, benzene a me ka ethyl ether, hiki ʻole ke hoʻoheheʻe ʻia i loko o ka carbon disulphide.
Waihona:
1. Mālama ʻia i loko o kahi hale kūʻai ʻoluʻolu.
2. E mālama i ke ahi, wela. Pono ke kau anuanu e mālama i ka mahana ma mua o 16 DEG C, i mea e pale ai i ka paʻa. I ke kau anuanu, pono e mālama ʻia ka mahana ma luna o 16 DEG C i mea e pale ai a pale i ka paʻa.
3. E hoʻopaʻa i ka pahu. Pono e hoʻokaʻawale ʻia mai ka oxidant a me ka alkali. Pono e pale ʻia ka hui ʻana ma nā ʻano a pau.
4. E hoʻohana i nā kukui pahū, nā keʻena ea.
5. ʻO nā mea hana mīkini a me nā mea hana e pāpā ai i ka hoʻohana ʻana i ka maʻalahi o ka hana ʻana i nā huna ahi.
6. Pono e ho'olako 'ia nā wahi e waiho ai me nā lako lā'au ulia pōpilikia a me nā lako hale kūpono.
E hoʻohana:
1.Derivative: Hoʻohana nui ʻia i ka synthetising acetic anhydride, acetic ether, PTA, VAC / PVA, CA, ethenone, chloroacetic acid, etc.
2.Pharmaceutical: Acetic acid e like me ka mea hoʻoheheʻe a me ka lāʻau lapaʻau, hoʻohana nui ʻia no ka hana ʻana o ka penicilin G potas-sium, penicilin G sodium, penicillin procaine, acetanilide, sulfadiazine, a me sulfamethoxazole isoxazole, norfloxacin, ciprofloxacin, non-acetyl salicydine. ,caffeine, etc.
3.Intermediate: acetate , sodium hydrogen di ,ʻakika peracetic , etc
4.Destuff a me ka lole paʻi a me ka waihoʻoluʻu: Hoʻohana nui ʻia i ka hana ʻana i nā disperse dyes a me vat dyes, a me ka paʻi lole a me ka hana ʻana.
5. Synthesis ammonia: Ma ke ʻano o ka cuprammonia acetate, hoʻohana ʻia i ka hoʻomaʻemaʻe ʻana i nā syngas e wehe i kahi litl CO a me CO2
6. Kiʻi: Mea hoʻomohala
7. ʻO ke kopa maoli: Coagulant
8. ʻOihana hana: Kaohi ʻana i ka ʻuala mai ka paʻukū9. I ka addtin hoʻohana nui ʻia i ka mālama wai, syntheticfiber, pesticides, plastics, ʻili, pena, ka hana metala a me ka ʻoihana ʻoihana.
ʻO ka ʻakika acetic (i kapa ʻia hoʻi ka acetic acid, glacial acetic acid, a i ʻole ka formula CH COOH) he ʻakika mono organik ʻo ₃ ke kumu o ka ʻakika a me ka ʻala ʻala i loko o ka vīneka. ʻO ka waiʻakika anhydrous acetic maʻemaʻe (glacial acetic acid) he wai hygroscopic kala ʻole me kahi pae maloʻo o 16.7 ° C (62 ° F) a lilo i aniani kala ʻole i ka paʻa. ʻOiai ʻo ka ʻakika acetic he ʻakika nāwaliwali e pili ana i kona hiki ke hoʻokaʻawale i nā wai wai, he mea ʻino ka acetic acid a hoʻonāukiuki kona mau mahu i ka maka a me ka ihu.
ʻO ka ʻakika acetic, kahi ʻakika carboxylic saturated i loaʻa nā ʻātoma kalapona ʻelua, he mea hoʻoheheʻe koʻikoʻi i loko o ka oxy. ʻO ke ʻano molekole C2H4O₂, ka hoʻonohonoho ʻana
ʻAno molekala
ʻO ka CH₃COOH pōkole, ʻo HAC ke ʻano pōkole. ʻO ka pūʻulu hana o ke ʻano hana he hui carboxyl a ʻo ka helu CAS he 64-19-7. No ka mea, ʻo ia ka mea nui o ka vīnega, i ʻike ʻia hoʻi he acetic acid. I loko o nā huaʻai a i ʻole nā ʻaila ʻai, no ka laʻana, ma ke ʻano o nā esters o kā lākou pūhui; Aia ia ma ke ʻano he waikawa manuahi i loko o nā ʻiʻo, feces, a me ke koko o nā holoholona. Loaʻa i ka vīneka maʻamau ka 3% a 5% acetic acid. He wai waihoʻoluʻu ʻole ka ʻakika acetic me kahi ʻala ʻala ikaika. He 60.05 ke kaumaha o ka molekala, he 16.6 ℃ ka helu hoʻoheheʻe, he 117.9 ℃ ka paila hoʻoheheʻe, he 1.0492 (20/4 ℃) ka mea hoʻoheheʻe, ʻoi aku ka kiʻekiʻe ma mua o ka wai, ʻo ka index refractive he 1.3716. Hiki i ka ʻakika acetic maʻemaʻe ke hana i kahi paʻa like me ka hau ma lalo o 16.6 ° C, no laila ua kapa pinepine ʻia ka glacial acetic acid. Hiki ke hoʻoheheʻe ʻia i ka wai, ethanol, ether a me carbon tetrachloride. Ke hoʻohui ʻia ka wai i ka ʻakika acetic, e liʻiliʻi ka nui o ka leo a piʻi ka mānoanoa a hiki i ka ratio molecular he 1:1, e like me ka hoʻokumu ʻana o ka mono-acid CH3C (OH) ₃, i hoʻoheheʻe hou ʻia a ʻaʻole hoʻololi hou i ka leo. .