1. Common derivatives include the colourless salts potassium thiocyanate and sodium thiocyanate. 2. Common derivatives include the colourless salts potassium thiocyanate and sodium thiocyanate . 3. Organic compounds containing the functional group SCN are also called thiocyanates . 4. Similarly, Co 2 + gives a blue complex with thiocyanate . 5. The salts and esters of thiocyanic acid are known as thiocyanates . 6. Mercury ( II ) thiocyanate was formerly used in pyrotechnics. 7. As such, foodstuffs containing thiocyanate are best avoided by hypothyroid patients. 8. A commonly used method is guanidinium thiocyanate -phenol-chloroform extraction. 9. Inhibition of this step requires competitive inhibitors such as perchlorate and thiocyanate . 10. These include iodine, fluorine, cyanide, thiocyanate , and isocyanate.