亚铬酸盐是“亚铬酸”（HCrO2）[1]形成的盐，其中铬为+3价。它可由氧化物为原料合成得到：[2][3]
- Na2O + Cr2O3 → 2 NaCrO2
- CaO + Cr2O3 → Ca(CrO2)2
反应所需的碱金属氧化物也可通过叠氮化物和硝酸盐的反应原位生成：[4]
- 5 KN3 + KNO3 + 3 Cr2O3 → 6 KCrO2 + 8 N2
两性的氢氧化铬溶解在强碱中，可以得到四羟基合铬(III)酸盐（Cr(OH)−
4）。[5]
- ^T. Maekawa, O. Yamamuro, A. Inaba, T. Matsuo, M. Ohama, M. Ichikawa, T. Tsuchida.Deuteration-Induced Phase Transition in Chromous Acid DCrO2. Ferroelectrics. 2007-03-26,346 (1): 149–155 [2022-06-17].ISSN 0015-0193.doi:10.1080/00150190601182444. （原始内容存档于2022-07-10）（英语）.
- ^Scheld, W.; Hoppe, R. On the α-NaFeO2 type: about sodium and potassium chromium oxides NaCrO2 and KCrO2.Zeitschrift fuer Anorganische und Allgemeine Chemie, 1989. 568. 151-156.ISSN 0044-2313.
- ^Zheng-wei Liu, Hong-ling Zhang, Min-ting Luo, Li-li Pei, Yi-lang Shi, Zai-hua Cai, Hong-bin Xu, Yi Zhang.Molten salt synthesis of δ-CaCr2O4 and its annealing to prepare β-CaCr2O4. Ceramics International. 2017-01,43 (1): 1231–1235 [2022-06-17].doi:10.1016/j.ceramint.2016.10.069. （原始内容存档于2018-06-21）（英语）.
- ^Naveed Zafar Ali, Jürgen Nuss, Martin Jansen.A New Polymorph of Potassium Chromate(III), β-KCrO2, and Reinvestigation of α-KCrO2. Zeitschrift für anorganische und allgemeine Chemie. 2013-02,639 (2): 241–245 [2022-06-17].doi:10.1002/zaac.201200476. （原始内容存档于2022-06-24）（英语）.
- ^Felmy, A.R.; Rai, D.; Fulton, R.W.The solubility of Cr(OH)3(am) in concentrated NaOH and NaOH-NaNO3 solutions. 1994. PNL-SA-24027.
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