IHydrogen Sulfidi (H2S)

Iiparamitha zobugcisa

I-Hydrogen sulfide yi-inorganic compound ene-molecular formula ye-H2S kunye ne-molecular weight 34.076. Ngaphantsi kweemeko eziqhelekileyo, yigesi ye-asidi enokutsha. Ayinambala kwaye inevumba lamaqanda abolileyo kwindawo ephantsi. ityhefu. Isisombululo esinamanzi yi-hydrogen sulfuric acid, ebuthakathaka kune-carbonic acid, kodwa inamandla kune-boric acid. IHydrogen sulfide iyanyibilika emanzini, inyibilika ngokulula kwiialkoholi, izinyibilikisi zepetroleum kunye neoyile ekrwada, kwaye iimpawu zayo zemichiza azinzanga. IHydrogen sulfide yikhemikhali enokutsha kwaye iyingozi. Xa ixutywe nomoya, inokwenza umxube oqhumayo. Inokubangela ukutsha kunye nokudubula xa ibonakaliswe kumadangatye avulekileyo kunye nobushushu obuphezulu. Ikwayinto ebukhali kwaye iyityhefu kakhulu. I-hydrogen sulfide ephantsi-concentration ineempembelelo emehlweni, inkqubo yokuphefumula kunye nenkqubo ye-nervous central. Ukuphefumla umthamo omncinci we-high-concentration ye-hydrogen sulfide inokubulala ngexesha elifutshane. Isetyenziswe ekwenzeni i-phosphors yokwenziwa, i-electroluminescence, i-photoconductors, iimitha ze-photoelectric exposure metre, njl njl. Isetyenziselwa ukucokisa isinyithi, i-pesticides, iyeza, ukuvuselelwa kwe-catalyst. ii-reagents ngokubanzi. Ukulungiswa kweesulfides ezahlukeneyo. Isetyenziswa ekwenzeni i-inorganic sulfides, kwaye ikwasetyenziswa kuhlalutyo lweekhemikhali ezifana nokuchongwa kwee-ion zetsimbi. I-high-purity hydrogen sulfide isetyenziswa kwi-semiconductor nakwezinye iindawo. Isenokusetyenziswa kwishishini lemichiza yokhuselo lwelizwe, i-pharmaceutical and pesticide intermediates, i-non-ferrous metal refining kunye ne-metal surface modification treatment, esetyenziswa ekulungiseleleni igesi eqhelekileyo, igesi yokulinganisa, kunye nohlalutyo lweekhemikhali ezifana nokuchongwa kwee-ion zetsimbi. Isixhobo esibalulekileyo sokwenziwa kwezinto ezibonakalayo ze-infrared. Amanyathelo okhuseleko: Gcina kwindawo epholileyo, nengena umoya. Zigcine kude nomlilo kunye nemithombo yobushushu. Ubushushu bokugcina akufunekanga budlule kuma-30°C. Gcina isitya sivaliwe ngokuqinileyo. Kufuneka igcinwe ngokwahlukileyo kwi-oxidants kunye ne-alkali, kwaye ugweme ukugcinwa okuxubileyo. Sebenzisa izibane ezingagqabhukiyo kunye nezixhobo zokungenisa umoya. Akuvumelekanga ukusebenzisa izixhobo zoomatshini kunye nezixhobo ezixhomekeke kwiintlantsi. Indawo yokugcina kufuneka ixhotyiswe ngezixhobo zonyango olungxamisekileyo oluvuzayo.

Isicelo:

①Ukuveliswa kweekhompawundi ze-thioorganic:

Iikhompawundi ezininzi ze-organosulfur ziveliswa kusetyenziswa i-hydrogen sulfide. Ezi ziquka i-methanethiol, i-ethanethiol, kunye ne-thioglycolic acid.

②Ikhemistri yohlalutyo:

Ngaphezulu kwenkulungwane, i-hydrogen sulfide yayibalulekile kwi-chemistry yohlalutyo, kuhlalutyo olusemgangathweni lwe-ioni yensimbi.

③ Isandulela sesulfide zesinyithi:

Njengoko kubonisiwe ngasentla, ii-ion ezininzi zetsimbi zisabela ngehydrogen sulfide ukunika i-metal sulfide ehambelanayo.

④Iinkqubo eziziintlobo ngeentlobo:

I-Hydrogen sulfide isetyenziselwa ukwahlula i-deuterium oxide, okanye amanzi anzima, kumanzi aqhelekileyo ngenkqubo ye-Girdler sulfide.

Iphakheji eqhelekileyo:

I-advanteji:

①Ukucoceka okuphezulu, indawo yamva nje;

②ISO umenzi wesatifikethi;

③Ukuhanjiswa okukhawulezayo;

④Impahla ekrwada ezinzileyo evela kubonelelo lwangaphakathi;

⑤Inkqubo yokuhlalutya kwi-intanethi yokulawula umgangatho kwinqanaba ngalinye;

⑥Imfuno ephezulu kunye nenkqubo enobuchule yokuphatha isilinda ngaphambi kokuzaliswa;