| Mercury compound | Supplier | Declared purity |
| Hg2Cl2 | Sigma-Aldrich Co. LLC. | ≥99.5% |
| HgCl2 | Kemikad.d., Zagreb | 99% |
| HgO-Red | Sigma-Aldrich Co. LLC. | ≥99.5% |
| HgO-Yellow | May & Baker Ltd. | ≥99.5% |
| HgS-Red | Mallinckrodt Chemical Works | 99% |
| HgSe | Sigma-Aldrich Co. LLC. | 99.9% |
| Hg2SO4 | Sigma-Aldrich Co. LLC. | 98% |
| HgSO4 | Sigma-Aldrich Co. LLC. | ≥99% |
| HgF2 | Sigma-Aldrich Co. LLC. | 97% |
| HgBr2 | Sigma-Aldrich Co. LLC. | 98% |