1. Solubility hauv dej
Solubility:soluble me ntsis, hais txog0.8 g/l(20 degree), ua cov tshuaj acidic me ntsis (ph ≈ 4).
Soluble cov khoom: reactsNrog dej los ua Metavanadate (HVO3) lossis, kom tsawg dua, polyvanate (piv txwv li, h2v4o11), nyob ntawm cov kev xav thiab ph.
V2o {5+ h2o → 2hvo3
Qhov kub nyhuv: Solubility nce nrog nce kub (piv txwv li, txog li 5 g / l ntawm 100 degree).
2. Solubility hauv acids
Muaj zog acids (piv txwv li sulfuric, nitric, hydrochloric):
Yooj yim yaj los ua ib tug vanadate cation (vo 2+) lossis vo 2+ (nyob ntawm cov kua qaub thiab txo cov khoom).
Piv txwv (hauv sulfuric acid):
V2o {{{{1} h2so4 → 2 {2++2} {} h2o
Cov kua qaub tsis muaj zog (piv txwv li, acetic acid):Tsawg dua soluble, yuav tsum muaj cua sov lossis siab ntawm cov kua qaub.
3. Solubility hauv alkalis
Muaj zog alkalis (piv txwv li naoh, koh):
Soluble, ua daim paladates tsis muaj kob (piv txwv li, sodium metavanadate navo3):
V2o {{5+2 na a naoh → 2navo 3+ h2o
Hauv concentrated alkalis, polyvadates (piv txwv li, NA3VO4) tuaj yeem tsim tau.
