| Potassium dichromate is an oxidizer and therefore presents a fire hazard. |
| The breath sample is bubbled in one vial through a mixture of sulfuric acid, potassium dichromate, silver nitrate and water. |
| Potassium hydroxide would cause an orange coloured potassium dichromate solution to change to yellow. |
| Ethanol can be chemically oxidized using a mixture of concentrated sulfuric acid and sodium dichromate. |
| In all but one of the incidents, Ms Haynes avoided harm: the bright-orange potassium dichromate and the arsenic compound were easy to spot. |
| He had very bad luck with the permanganate bleach and recommends the dichromate bleach instead. |
