Barium Chromate 10294-40-3 Yogwiritsidwa Ntchito Monga Anti-dzimbiri Pigment
Tsatanetsatane wa Zamalonda
| Dzina | Barium chromate |
| Nambala ya CAS | 10294-40-3 |
| Mapangidwe a maselo | BaCrO4 |
| Kulemera kwa maselo | 253.3207 |
| Nambala ya EINECS | 233-660-5 |
| Malo osungunuka | 210 °C (dec.) (kuyatsa) |
| Kuchulukana | 4.5 g/mL pa 25 °C (kuyatsa) |
| Fomu | Ufa |
| Mphamvu yokoka yeniyeni | 4.5 |
| Mtundu | Yellow |
| Kusungunuka kwamadzi | Zosasungunuka m'madzi.Kusungunuka mumphamvu zidulo. |
| Mvula Equilibrium Constant | pKs: 9.93 |
| Kukhazikika | Wokhazikika.Oxidizer.Itha kuchitapo kanthu mwamphamvu ndi zochepetsera. |
Mawu ofanana ndi mawu
Bariumcromate;BariumChromate,PuratronicBasis(Zitsulo);Bariumchromate:chromicacid,bariumsalt;BARIUMCHROMATE;ci77103;cipigmentyellow31;Chromicacid(H2-CrO4),bariumsalt(1:1);Chromicacid,1bariumsalt(1)
Chemical Properties
Pali mitundu iwiri ya barium chrome yellow, imodzi ndi barium chromate [CaCrO4], ndipo ina ndi barium potassium chromate, yomwe ndi mchere wambiri wa barium chromate ndi potassium chromate.Mankhwalawa ndi BaK2(CrO4)2 kapena BaCrO4·K2CrO4.Chromium Barium Oxide ndi ufa wonyezimira wonyezimira, wosungunuka mu hydrochloric acid ndi nitric acid, wokhala ndi mphamvu zochepa zopendekera.Khodi yapadziko lonse ya barium chromate ndi ISO-2068-1972, yomwe imafuna kuti zomwe zili mu barium oxide ndi zosachepera 56% komanso zomwe zili mu chromium trioxide ndi zosachepera 36.5%.Barium potaziyamu chromate ndi ufa wachikasu wa mandimu.Chifukwa cha potassium chromate, imakhala ndi kusungunuka kwamadzi.Kachulukidwe wake ndi 3.65, refractive index ndi 1.9, mayamwidwe ake amafuta ndi 11.6%, ndipo voliyumu yake yeniyeni ndi 300g/L.
Kugwiritsa ntchito
Barium chromate singagwiritsidwe ntchito ngati utoto wa pigment.Chifukwa ili ndi chromate, imakhala ndi zotsatira zofanana ndi zinc chrome yellow ikagwiritsidwa ntchito mu utoto wotsutsa.Barium potaziyamu chromate sangathe kugwiritsidwa ntchito ngati mtundu wa pigment, koma angagwiritsidwe ntchito ngati anti- dzimbiri pigment, amene akhoza m'malo mbali ya zinki chikasu.Kuchokera pamalingaliro achitukuko, ndi imodzi yokha mwa mitundu yamitundu yotsutsa dzimbiri ya chromate yomwe imapezeka pamsika wokutira.
