| Identification | |
| Name: | Chromic acid |
| Synonyms: | Chromic(VI)acid;Chromium hydroxide oxide (Cr(OH)2O2); |
| CAS: | 7738-94-5 |
| EINECS: | 231-801-5 |
| Molecular Formula: | CrH2O4 |
| Molecular Weight: | 118.01 |
| InChI: | InChI=1/Cr.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2/rCrH2O4/c2-1(3,4)5/h2-3H |
| Molecular Structure: |  |
| Properties | |
| Transport: | UN 1463/1755 |
| Water Solubility: | Highly soluble |
| Solubility: | Highly soluble in water |
| Appearance: | dark purplish red solid |
| Specification: |
?Chromic acid (CAS NO.7738-94-5) is also named as AI3-51760 ; Acide chromique ; Acide chromique [French] ; CCRIS 8994 ; Caswell No. 221 ; Chromic(VI) acid ; Chromium hydroxide oxide ; EPA Pesticide Chemical Code 021101 ; HSDB 6769?.?Chromic acid (CAS NO.7738-94-5) is a dark purplish red solid. It is soluble in water with the release of heat.Chromic acid itself is noncombustible but?it will accelerate the burning of combustible materials. Its solution is corrosive to metals and tissue. It is?a very powerful oxidizing agent, confirmed human carcinogen. Dangerously reactive with acetone, alcohols, alkali metals (sodium, potassium), ammonia, arsenic, dimethylformamide, hydrogen sulfide, phosphorus, peroxyformic acid, pyridine, selenium, sulfur, and many other chemicals. Chromic acid can cause a violent explosion, in contact with organic matter. It may cause a violent oxidation leading to ignition. When mixed with sulfuric acid for glass cleaning operations, used solution in closed bottle may explode due to internal pressure of carbon dioxide arising from contamination by carbon compounds. Very irritating to eyes and respiratory tract. Ingestion causes severe gastrointestinal symptoms. |
| Report: |
Reported in EPA TSCA Inventory. Chromium and its compounds are on the Community Right-To-Know List. |
| Color: | Dark purplish-red crystals red, rhombic Brown solid |
| Safety Data | |
 |
|
