Waikawa Chromic

Whakatikatika tikanga tātari

Te whakatau i te ihirangi waikawa chromic i roto i te hau: i kohia te tauira ma te tātari, ka rewa ki te waikawa pungatara, katahi ka whakatauhia ma te tae i muri i te taapiri i te diphenylcarbazide (tikanga NIOSH).

Te whakatau i te ihirangi waikawa chromic i roto i te wai: ka tangohia te tauira ka whakatauhia e te spectrometry whakaurunga ngota, te tae ranei.

Te tikanga tuku para: ka huri te wai para waikawa chromic ki roto i te chromium trivalent i muri i te whakahekenga matū, ka whakatikahia te uara pH o te otinga ki te hanga i te rerenga, ka whakakiihia te para hei para matū.

Whakamahinga whakatika

Ko te waikawa Chromic te wai horoi e whakamahia ana i roto i te taiwhanga.He waikawa me te oxidizability.Ka taea e ia te tango i nga paru me nga matū karekau e rewa mai i nga pakitara o roto me waho o nga taputapu whakamatautau.I te nuinga o te wa, ka whiwhihia te otinga horoi ma te taapiri i te konupora dichromate ki roto i te waikawa sulfuric kukū, engari he kino te chromium hexavalent ki te taiao, a, i etahi wa ka pakaru te taputapu i roto i te taiao waikawa kaha, na reira kua whakahekehia te tono o te hinu waikawa chromic.

Ka taea te whakamahi i te waikawa Chromic hei waikura.He maha nga puhui pararopi ka taea te waikura e te waikawa chromic, a he maha nga waiora i hangaia i runga i te hexavalent chromium kua whakawhanakehia.Jones reagent: he wairewa wai o te waikawa chromic, waikawa pungatara me te acetone e whakapouri ana i nga waipiro tuatahi me te tuarua ki nga waikawa warowairaka me nga ketone e rite ana me te kore e pa ki nga here haunga.Pyridinium chloride chromate: he mea whakarite na te chromium trioxide me te pyridine hydrochloride, ka taea te whakapouri i te waipiro tuatahi ki te aldehyde.Collins reagent: te taapiri o te chromium trioxide me te pyridine.

Ka taea hoki te whakamahi i te waikawa Chromic mo te whakakikorua chromium, te chromium whakarewa parakore teitei, te poaka, te mordant, te rongoa me te whakapiri waro, me te hanga i etahi karaehe me nga karaihe tae.