| Search our quarter-million Q&As |
Home of the finishing HOTLINE since 1989
-----Spot test for cyanide in waste water
⇦ Tip: Readers like to learn from others' situations;
some readers skip abstract questions.
Q. What is the spot test for cyanide after treatment in ETP
Rathin Mukhopadhyay
- Kolkata, West Bengal, India
December 12, 2024
A. Hi Rathin
I am not aware of a direct spot test for cyanide. However, there is such a thing as "cyanide amenable to chlorination", which is the worst type of cyanide. And a spot test which is done constantly is the potassium iodide starch paper test; it doesn't actually test for cyanide, but it tests for the availability of chlorine -- the assumption being that if it is lightly purple there is a proper amount of chlorine so cyanide amenable to chlorination is not present.
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
A. Hello, Rathin,
I use a Macherey-Nagel rapid test called "Cyantesmo", give it a look ⇨
Regards,
Chemical Engineer - Nova Friburgo, Rio de Janeiro, Brazil
Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.