zogadi da araorganuli qimia nawili meore (qimiuri elementebi)

Sb2O3 wyalSi praqtikulad ar ixsneba, magram moqmedebs tutesTan da
marilmJavasTan. Sb2O3 amfoteruli oqsidia:
E2O3 + 2KOH + 3H2O → 2K[E(OH)4]¯
sadac, E = As, Sb.
Bi2O3 mJaveebTan moqmedebs Bi(III)-is marilebis warmoqmniT. wyalTan da
tuteebTan praqtikulad ar moqmedebs.
analogiurad icvleba hidroqsidebis Tvisebebic. H3PO3 mJavaa, As(OH)3
da Sb(OH)3 amfoterulia. As(OH)3-Si Warbobs mJava Tvisebebi, Sb(OH)3-Si ki _
fuZe Tvisebebi. amasTan maTi disociacia, rogorc fuZe, ise mJavuri
tipiT, wyalxsnarebSi sustad mimdinareobs.
H3AsO3 wyalxsnarebidan gamoyofili ar aris. Sesabamisi wyalxsnari
susti mJavaa (dariSxanovani mJava, marilebi arsenitebi).
Sb(OH)3 da Bi(OH)3BwyalSi praqtikulad ar ixsneba. miiReba TeTri
naleqis saxiT − E2O3 . nH2O samvalentiani marilebze tutis moqmedebiT:
Bi(NO3)3 + 3KOH → Bi(OH)3 + 3KNO3
an anionur nawarmebze mJavis moqmedebiT:
Na[Sb(OH)4] + HCI → NaCI + Sb(OH)3 +H2O
xolo tutesTan SelRobisas E2O3 da E(OH)3 warmoqmnis polimerul
metaarsenits(III). metastibits(III) da metabismutits(III) SedgenilobiT
Me +1 EO2.. amasTan oqsobismutitebi(III) aramdgradia:
t
NaOH + As(OH)3 → 2NaAsO2 + 2H2O
t
2NaOH + As2O3 → 2NaAsO2 +H2O
NaOH + Sb(OH)3 → NaSbO2 + 2H2O
2NaOH +Sb2O3 → 2NaSbO2 +H2O
As +3 , Sb +3 , Bi +3 warmoqmnian sulfidebs. moyviTalo As2S3, narinjisferi
Sb2S3 da Savi Bi2S3 wyalSi uxsnadi myari nivTierebebia. sulfidebi miiReba
uSualo urTierTqmedebiT an E(III)-is naerTebze H2S-is moqmedebiT mJava
areSi:
2Na[As(OH)4] + 3H2S +2HCI → 2NaCI +As2S3 +8H2O
2Bi(NO3)3 +3H2S → Bi2S3 +6HNO3
As2S3 da Sb2S3 ZiriTadad mJavuri naerTebia. isini wyalSi advilad
ixsnebian fuZe sulfidebis Tanaobisas sulfidoarsenitebis(III) da
sulfidostibitebis(III) warmoqmniT (MЭS2, M3ЭS3):
E2S3 + (NH4)2S → 2NH4ЭS2
As2S3 + (NH4)2S → 2NH4AsS2
Sb2S3 + + (NH4)2S → 2NH4SbS2
Bi2S3 aRniSnul sulfidebSi ar ixsneba. fuZe sulfidebTan is mxolod
SelRobiT moqmedebs.
E2S3 tipis naerTebi advilad gadadian Э2O3 da ЭF3 tipis naerTebSi
Sesabamisad Jangbadis da ftoris moqmedebiT:
2Sb2S3 + 9O2 → 2Sb2O3 + 6SO2
As2S3-gan gansxvavebiT, Sb(III) da Bi(III)-is sulfidebi Sb2S3 da Bi2S3
ixsnebian konc. marilmJavaSi:
Sb2S3 + 8HCI → 2HSbCI4 + 3H2S
sulfidoarsenitebi(III) da sulfidostibitebi(III) myar mdgomareobaSi
savsebiT mdgradia, magram Sesabamisi TiomJavebi aramdgradia da
gamoyofisTanave iSlebian:
NH4AsS2 + HCI → HAsS2 + NH4CI
2HAsS2 → As2S3 + H2S
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