Acide acide acide ya CH3COOH acide ya anhydrous acetike

Imiti ya acide ya acike CH3COOH isukuye ya anhydrous acetike Yerekana Ishusho

Ibisobanuro bigufi:

Acide Acike

Acide acike, formulaire ya chimique CH3COOH, ni acide monobasic organique, igice cyingenzi cya vinegere. Acide ya acide ya anhydrous acide (acide glacial acetic acide) ni amazi ya hygroscopique idafite ibara. Ingingo yo gukonjesha ni 16,6 ° C (62 ° F) .Nyuma yo gukomera, ni ni kirisiti itagira ibara kandi igisubizo cyayo cyamazi ni acide acide kandi irashobora kwangirika cyane.Bora cyane kwangirika kwibyuma kandi amavuta arakaza amaso nizuru.

Acide acetike ikwirakwizwa cyane muri kamere, nko mumavuta yimbuto cyangwa amavuta yimboga. Acide acetike ibaho cyane cyane muburyo bwa esters.Mu nyama zinyamanswa, imyanda n'amaraso, aside acike ibaho muburyo bwa acide yubusa.Mikorobe nyinshi zirashobora guhindura organic zitandukanye ibintu muri acide acike binyuze muri fermentation.

Ohereza imeri kuri twe

Ibicuruzwa birambuye

Ibicuruzwa

Imiti yimiti: CH3COOH

Kugaragara: Amazi adafite ibara rifite impumuro nziza

Uburemere bwihariye: 60.05

CAS: 64-19-7

EINECS: 231-791-2

Ingingo yo gushonga: 16.6 ℃

Ingingo yo guteka: 117.9 ℃

Amazi ashonga: Yashonga mumazi

Ubucucike: 1.05 g / cm³

Ingingo yerekana: 39 ℃

Loni No.: 2790

Imiterere yumubiri:

Ingingo yo guteka: 117.9 ℃

Ingingo yo gukonjesha: 16.6 ℃

Ubucucike bugereranijwe (amazi = 1): 1.050

Imiterere yimiti

Acide yaacide

Carboxyl hydrogen atom yaacideirashobora kuba igice cya ion muri hydrogène ion (protons) ikarekurwa, acide iganisha kuri acide karubike. ubunini bwa 1 mol / L (bisa nubunini bwa vinegere yo murugo) bifite pH ya 2.4.Ni ukuvuga ko 0.4% gusa ya molekile ya acide acike itandukanijwe.

Ibikurikira nigipimo cyigihugu cya Repubulika yUbushinwa kuri acide acetike yinganda:

Ingingo	Byihariye
Icyiciro	Premium	Icyiciro cya mbere	Yujuje ibyangombwa
Chroma, Hazen Units (Platinum-Cobalt) ≤	10	20	30
Acide ya acike% ≥	99.8	99.0	98.0
Ubushuhe% ≤	0.15	-	-
Ibirimo aside irike% ≤	0.06	0.15	0.35
Acetaldehyde ibirimo% ≤	0.05	0.05	0.10
Umwuka usigaye% ≤	0.01	0.02	0.03
Ibirimo ibyuma (nka Fe)% ≤	0.00004	0.0002	0.0004
Kugabanya ibintu bya potasiyumu permanganate min ≥	30	5	-

Gusaba

Gusaba inganda

Acide acike nigicuruzwa kinini cyimiti kandi nikimwe mubintu byingenzi bya acide kama.Bikoreshwa cyane mugukora anhydride ya acetike, acetate na selile ya selile, nibindi. vinylon.Cellulose acetate irashobora gukoreshwa mugukora firime ya rayon na firime.
Acetate ikomoka kuri alcool yo hepfo ni umusemburo mwiza kandi ikoreshwa cyane munganda zisiga amarangi.Kubera ko acide acetike ishonga ibinyabuzima byinshi, ni nabwo bukoreshwa cyane (urugero nka okiside ya p-xylene kugirango itange aside terephthalic).

Gucunga ububiko

Ubike mu bubiko bukonje, buhumeka.Irinde umuriro nubushyuhe.Mu gihe cyo gukonjesha, ubushyuhe bwo kubika bugomba kubikwa hejuru ya 16 ℃ kugirango wirinde gukomera. Komeza ikintu gifunze cyane.Igomba kubikwa ukwayo na okiside na alkalis, kandi ntigomba kuvangwa. Koresha amatara adashobora guturika no guhumeka.Kubuza gukoresha ibikoresho bya mashini nibikoresho bikunda kugaragara.Ahantu ho guhunika hagomba kuba hafite ibikoresho byo kurekura byihutirwa nibikoresho bikwiye.