Aqoonta daabacaadda iyo midabaynta 】 Waa maxay sababta dheeha loo firdhiyo si loogu daro glacial acetic acid
Aqoonta daabacaadda iyo midabaynta 】 Waa maxay sababta dheeha loo kala firdhiyo si loogu daro glacial acetic acid
Glacial acetic acid, glacial acetic acid tallaabo, glacial acetic acid content, Soosaarayaasha glacial acetic acid, Acid Ashitada Glacial, isticmaalka glacial acetic acid,
Tilmaamaha tayada (GB/T 1628-2008)
| Qodobbada falanqaynta | Tilmaamid | ||
| Heerka Sare | Fasalka Koowaad | Fasalka caadiga ah | |
| Muuqashada | Cad oo ka madax bannaan arrin la hakiyey | ||
| Midabka (Pt-Co) | ≤10 | ≤20 | ≤30 |
| Qiimayn % | ≥99.8 | ≥99.5 | ≥98.5 |
| Qoyaanka % | ≤0.15 | ≤0.20 | —- |
| Formic Acid % | ≤0.05 | ≤0.10 | ≤0.30 |
| acetaldehyde % | ≤0.03 | ≤0.05 | ≤0.10 |
| Haraaga uumiga % | ≤0.01 | ≤0.02 | ≤0.03 |
| Birta (Fe) % | ≤0.00004 | ≤0.0002 | ≤0.0004 |
| Waqtiga Joogtada ah min | ≥30 | ≥5 | —- |
Sifooyinka physicochemical:
1. Dareere aan midab lahayn iyo dhadhan cuncun leh.
2. Barta dhalaalka 16.6 ℃;barta karkarinta 117.9 ℃;Dhibicda fiishka: 39 ℃.
3. Biyaha milmi kara, ethanol, benzene iyo ethyl ether immiscible, oo aan milmin karin disulfide carbon.
Kaydinta:
1. Lagu kaydiyaa bakhaar qabow oo hawo leh.
2. Ka ilaali dabka, kulaylka.Xilliga qabowgu waa inuu ilaaliyaa heerkul ka sarreeya 16 DEG C, si looga hortago adkaanta.Inta lagu jiro xilliga qaboobaha, heerkulka waa in lagu hayaa ka sarreeya 16 DEG C si looga hortago / looga fogaado adkaanta.
3. Weelka ha xidho.Waa in laga soocaa oxidant iyo alkali.Isku darka waa in laga fogaado si walba.
4. Isticmaal nalalka aan qarxin, tas-hiilaadka hawo-qaadista.
5. Qalabka makaanikada iyo qalabka mamnuucaya isticmaalka fudud ee soo saarista dhimbiil.
6. Goobaha kaydinta waa in lagu qalabeeyaa qalabka daaweynta degdega ah iyo qalab guri oo ku habboon.
Isticmaal:
1.Drivative: Inta badan loo isticmaalo synthetising acetic anhydride, acetic ether, PTA, VAC / PVA, CA, ethenone, chloroacetic acid, iwm
2.Pharmaceutical: Acetic acid sida dareeraha iyo alaabta farmashiyaha, inta badan loo isticmaalo soo saarista penicilin G potas-sium, penicilin G sodium, penicillin procaine, acetanilide, sulfadiazine, iyo sulfamethoxazole isoxazole, norfloxacin,ciprofloxacin, acetyl acid, ,caffeine, iwm.
3. Dhexdhexaad: acetate, sodium hydrogen di, peracetic acid, iwm
4.Dyestuff and textile printing and coloring:Inta badan loo isticmaalo soo saarida dheeha kala firdhisan iyo midabada,iyo daabacaadda dunta iyo dheeynta
5. Synthesis ammonia: Qaabka loo yaqaan 'Cuprammonia acetate', oo loo isticmaalo sifaynta syngas si looga saaro litl CO iyo CO2
6. Sawir: Horumariye
7. Caag dabiici ah: Coagulant
8. Warshadaha dhismaha: Ka hortagga shubka ee qaboojinta9.In addtin sidoo kale si ballaaran loo isticmaalo daaweynta biyaha, syntheticfiber, sunta cayayaanka, balaastikada, haragga, rinjiga, biraha warshadaynta iyo caagag.
Midabada kala firdhiso ayaa la isticmaalaa maalin kasta, laakiin waxaad isla markiiba odhan kartaa, maxay u kala firdhiyaan dheeha dheeha leh glacial acetic acid si loo hagaajiyo PH?(Aashitada Organic ayaa hadda lagu daray si loo hagaajiyo PH, marka laga reebo dheeha kala firdhida alkaline)
Sababtu waa:
Xasiloonida dheeha kala firdhisan ee qubeyska dheeha ayaa si dhow ula xidhiidha qiimaha pH.Gaar ahaan heerkulka sare iyo cadaadiska sare, haddii qiimaha pH ee qubeyska dheeha aan si adag loo koontaroolin, waxay badanaa keeni doontaa kala duwanaanshaha iftiinka midabka, sababaha ugu muhiimsan waa sida soo socota.
(1) Sababta hydrolysis dardargelinta ee dheeh kala firdhiso, in habka wax soo saarka ee dheeh, inta badan ku dar tiro badan oo kala firdhiyey sida wakiilka faafin NNO, lignin, sodium carbonate, iwm, si dheeh waa daciif alkaline, in
Markaad midabayso heerkulka sare ee 130%, way fududahay in la nadiifiyo, taasoo keentay midab khafiif ah iyo midab daciif ah.
(2) Sababo la xiriira dhimista burburka ee dheeha kala firdhiyey, khasaaraha kooxda chromophore, ifafaale this inta badan waa in dheeha la qaab-dhismeedka azo.
(3) Kooxda phenolic ee qaab-dhismeedka molecular ee dheehku wuxuu keenaa fal-celin ionic ah sababtoo ah ficilka alkali, milanka biyaha waa la xoojiyaa, dheeshana waa la daciifiyaa si waafaqsan, inta badan sababtoo ah kordhinta kala-baxa ee qubeyska midabaynta. , taasoo keentay kala firidhsan ee dheeha leh alkaline daciif ah.
