Bromochlorodifluoromethane

**Bromochlorodifluoromethane** ( **BCF** ), kuma ana magana da shi ta lambar lambobin **Halon 1211** da **Freon 12B1**, haloalkane ne tare da tsarin sinadarai C F 2 Cl Br . Ana amfani da shi don kashe wuta, musamman don kayan aiki masu tsada ko abubuwan da ragowar ke iya lalacewa ta hanyar sauran nau'ikan kashe gobara.  Ana adana shi azaman ruwa a ƙarƙashin matsi kuma yana yin tururi lokacin da aka fitar dashi don kashe gobara.  Amfani da halons, ciki har da Halon 1211, ya ragu a tsawon lokaci saboda mummunan tasirin da suke da shi a kan Layer na ozone. An ƙirƙiri madadin don rage matsalolin muhalli yayin da ake samar da ingantacciyar damar kashe gobara.

## Amfani da shi azaman mai kashe wuta
An fara amfani da haloalkanes a lokacin yakin duniya na biyu a cikin masu kashe wuta don jirgin sama da tankuna. An gabatar da BCF a matsayin mai tasiri mai kashe gobara a tsakiyar shekarun 1960 don amfani da kayan aiki masu mahimmanci a wurare kamar gidajen tarihi, ɗakunan mainframe, da cibiyoyin sauyawa sadarwa. An kuma yi amfani da BCFs a cikin masana'antun teku a cikin ɗakunan injiniya na jiragen ruwa da kuma masana'antar sufuri a cikin motoci. Ingancinsa a matsayin wakili na kashe wuta ya kuma haifar da shi ya zama babban zaɓi na wakili na tima wuta a kan jirgin sama na kasuwanci kuma yawanci ana samunsa a cikin kwantena na hannu. Fa'idodi a matsayin wakili na kashe wuta sune cewa yana da ƙananan guba fiye da sunadarai kamar su carbon tetrachloride kuma tun da yake yana da haɗin kai, ba ya samar da ions masu kaiwa, saboda haka ana iya amfani dashi akan kayan aikin lantarki.

BCF shine kyakkyawan wakili na kashe wuta, kamar yadda wakili ne mai gudana tare da ƙarancin guba, ƙarancin matsa lamba, iskar gas, da tasiri akan kowane nau'in gobara na yau da kullun, A, B, da C.  .   Ana amfani da shi ne a cikin na'urori masu ɗaukar hoto da masu motsi, da ƙananan raka'a kariya don aikace-aikacen jirgin sama da injin ruwa, kuma ba a taɓa yin amfani da shi sosai a tsayayyen tsarin kamar Halon 1301 ba.

BCF yana da ƙarancin guba. Matsakaicin haɗari don bayyanar minti 15 kusan 32%.

## Haɗuwa
BCF an hada shi ta hanyar kasuwanci a cikin matakai biyu daga chloroform. Chloroform yana da fluorine tare da hydrogen fluoride. Sakamakon chlorodifluoromethane ana amsawa tare da bromine na asali a 400-600 ° C, tare da lokacin amsawa iyakance zuwa kusan 3 seconds. Gabaɗaya amfanin gona ya wuce kashi 90%.&nbsp;

### Tsarin mulki
An dakatar da samar da BCF da irin wannan chlorofluorocarbons a yawancin ƙasashe tun daga ranar 1 ga Janairu, 1994 a matsayin wani ɓangare na Yarjejeniyar Montreal kan abubuwan da ke lalata ozone. Halon 1211 kuma iskar gas ce mai karfi tare da yiwuwar dumama duniya na shekaru 100 sau 2,070 na carbon dioxide da Rayuwar yanayi na shekaru 16.0. 

Sake amfani da Halon 1211 yana ba da damar ci gaba da amfani,   kodayake wadatar sassan yana iyakance ga 'yan masana'antun kuma yana iya zama matsala. Har yanzu ana amfani da Halon 1211 a ko'ina a Amurka, duk da tsada mai yawa, tare da sojojin Amurka su zama babban mai amfani. Turai da Ostiraliya sun haramta amfani da shi ga duk abin da ya faru sai dai "aikace-aikacen da suka dace" kamar jirgin sama, soja, da amfani da 'yan sanda. An yi la'akari da ƙera kayan kashe halon 1211 na UL a watan Oktoba 2009. Jerin nan gaba har yanzu yana cikin tattaunawa. Halotron I, mai maye gurbin mai kashewa, yana buƙatar ƙara girma don samun ƙididdigar iri ɗaya kamar 1211.

## Gidan wasan kwaikwayo

Fayil:H-1211_mm.png|alt=H-1211 measured by the Advanced Global Atmospheric Gases Experiment (AGAGE) in the lower atmosphere (troposphere) at stations around the world. Abundances are given as pollution free monthly mean mole fractions in parts-per-trillion.| H-1211 wanda aka auna ta Advanced Global Atmospheric Gases Experiment ( AGAGE ) a cikin ƙananan yanayi ( troposphere ) a tashoshi a duniya. Ana ba da wadatattun abubuwa azaman gurɓataccen ma'anar tawadar halitta kyauta kowane wata a cikin sassa-da- tiriliyan .
Fayil:Halon_1211_Fire_Extinguisher.jpg|alt=Halon 1211 Fire Extinguisher, USA, early 1990s.| Halon 1211 Wuta Extinguisher, Amurka, farkon 1990s.
Fayil:Aviation_H3R_Halon_1211_fire_extinguisher.jpg|alt=A portable aviation Halon 1211 fire extinguisher, USA, 2015.| Jirgin sama mai ɗaukar hoto Halon 1211 wuta kashe gobara, Amurka, 2015.


## Manazarta