Chloroacetic acid: Shiri da kuma sinadaran Properties

Chloroacetic acid ne acetic acid, a cikin abin da daya daga cikin hydrogen atoms a methyl kungiyar sauya ta mai free chlorine zarra. An shirya ta maida martani acetic acid tare da chlorine.

Babban albarkatun kasa da shiri ne acetic acid. Chloroacetic acid kuma za a iya samu ta hanyar hydrolysis na trichlorethylene.

Hydrolysis da chemically m samfurin samu. Duk da haka, wannan hanya shafi yin amfani da tsarki distilled ruwa ba tare da wani impurities.

Chloroacetic acid da aka yi amfani da domin samun daban-daban iri iri na dyes, kwayoyi, da kuma bitamin daban-daban da magungunan kashe qwari. Haka kuma an yi amfani da matsayin surface-aiki mahadi (surfactants).

Chlorination na acetic acid a cikin matsakaici da inorganic catalysts (wato acetic anhydride, sulfur da phosphorus) samu chloroacetic acid, wanda dabara CH ₂ CL-COOH:

CH ₃ -COOH + CL ₂ ↑ → => CH ₂ CL-COOH + HCI.

jiki Properties

Chloroacetic acid ne hygroscopic, m crystal ciwon narkewa batu na 61,2 ° C da kuma tafasar batu na 189,5 ° C. The abu ne readily mai narkewa (as a barasa ko a wani ruwa-ruwa matsakaici, kazalika da acetone, benzene, kuma carbon tetrachloride).

Monochloroacetic acid - mai guba da hadarin gaske musamman a lokacin da abu ingested wanda aka sau da yawa gani mutuwa. Bayan lamba tare da fata chloroacetic acid sa mai tsanani konewa cewa ba warkar da na dogon lokaci.

Inhalation acid tururi za a iya lura kumburi canje-canje a cikin huhu, kazalika a cikin manya da ƙananan numfashi fili.

Aiki masana'antu shuke-shuke da samar da monochloroacetic acid da azãba mai take hakkin wari, kullum rhinopharyngitis, peeling da kuma rashin ruwa da fata.

Har ila yau, a lokacin da shafe tsawon hulda da m abubuwa ne kiyaye raunuka na fata epidermis, ya nuna dermatitis a kan fuskarsa, wuyansa, manya da ƙananan extremities, a rare lokuta - da jiki.

Chloroacetic acid a cikin jikin mutum ne tuba zuwa cikin tiodiuksusnuyu acid, wanda aka excreted a cikin tumbi da fitsari.

Babban hanyoyin da kiyaye domin yin amfani da:

- tsananin haramta numfashi vapors, gas, hayaki, da ƙura,

- ko da yaushe amfani sirri m kayan aiki a lokacin da yin aiki a hade da wani contact da acid (impermeable overalls, aminci fitattun idanu, roba takalma da safar hannu).

- a cikin hali na inhalation ko lamba tare acid a kan fata ya kamata nan da nan nẽma gwani kula a mafi kusa likita makaman.

Matsakaicin canja rubuce lafiya taro na chloroacetic acid a samar dakin iska ne game da daya MG / m ^3.

Idan acid kai, shi ne kunsasshen a wani polymeric ganga (da ganga ko ganga), fiber ganguna da karfe kwantena. Za a iya hawa ta kowane hanya na rufe kai.

Ya kamata a tuna da cewa monochloroacetic acid ne flammable da kuma fashewar. Wannan abu ne mai matuƙar flammable.