I-Barium Chromate 10294-40-3 Isetshenziswa njenge-Anti-rust Pigment
Imininingwane Yomkhiqizo
| Igama | I-Barium chromate |
| Inombolo ye-CAS | 10294-40-3 |
| Ifomula yamangqamuzana | I-BaCrO4 |
| Isisindo samangqamuzana | 253.3207 |
| Inombolo ye-EINECS | 233-660-5 |
| Iphoyinti lokuncibilika | 210 °C (dec.) (lit.) |
| Ukuminyana | 4.5 g/mL ku-25 °C (okhanyisiwe) |
| Ifomu | Impushana |
| Amandla adonsela phansi athize | 4.5 |
| Umbala | Okuphuzi |
| Ukuncibilika kwamanzi | Ayincibiliki emanzini. Incibilika kuma-asidi aqinile. |
| I-Recipitation Equilibrium Constant | pKsp: 9.93 |
| Ukuzinza | Izinzile. I-oxidizer. Ingase isabele ngamandla ngama-ejenti anciphisayo. |
Omqondofana
I-Bariumcromate;BariumChromate,Puratronic (Isisekelo Sensimbi);I-Bariumchromate:chromicacid,bariumsalt;BARIUMCHROMATE;ci77103;cipigmentyellow31;Chromicacid(H2-CrO4),bariumsalt(1:1);Chromicacid,1bariumsalt(1)
Chemical Properties
Kunezinhlobo ezimbili ze-barium chrome yellow, eyodwa i-barium chromate [CaCrO4], kanti enye i-barium potassium chromate, okuwusawoti oyinhlanganisela we-barium chromate ne-potassium chromate. Ifomula yamakhemikhali ithi BaK2(CrO4)2 noma BaCrO4·K2CrO4. I-Chromium Barium Oxide iyimpushana ephuzi ukhilimu, encibilika ku-hydrochloric acid ne-nitric acid, enamandla okuthayela aphansi kakhulu. Ikhodi ejwayelekile yamazwe ngamazwe ye-barium chromate yi-ISO-2068-1972, edinga ukuthi okuqukethwe kwe-barium oxide kungabi ngaphansi kuka-56% futhi okuqukethwe kwe-chromium trioxide kungabi ngaphansi kuka-36.5%. I-Barium potassium chromate iyimpushana ephuzi kalamula. Ngenxa ye-potassium chromate, inokuncibilika okuthile kwamanzi. Ukuminyana kwayo okuhlobene ngu-3.65, inkomba yayo ye-refractive ingu-1.9, ukumuncwa kukawoyela wayo ngu-11.6%, kanti ivolumu yayo ecacile ingu-300g/L.
Isicelo
I-Barium chromate ayikwazi ukusetshenziswa njenge-pigment enemibala. Ngenxa yokuthi iqukethe i-chromate, inomthelela ofanayo ku-zinc chrome yellow uma isetshenziswa kupende ophikisana nokuvuvukala. I-Barium potassium chromate ayikwazi ukusetshenziswa njenge-pigment enemibala, kodwa ingasetshenziswa kuphela njenge-anti-rust pigment, engangena esikhundleni sengxenye ye-zinc yellow. Ngokombono wenkambiso yentuthuko, ingenye kuphela yezinhlobonhlobo ze-chromate anti-rust pigments ezitholakala embonini yokumboza.
