Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Cyanogen iodide destruction




My question concerns pretreatment of a cyanogen iodide containing waste as a product of silver analysis. I know that cyanogen iodide may be decomposed by treatment with sodium hypochlorite but what procedure would I use and how would I know when all of the cyanide is destroyed? Thank you for your help.

Darlene Raiford
Virginia Beach, Virginia
1999



I don't understand the mechanism of creating cyanogen iodide during silver analysis. If you are doing a standard titration of a cyanide silver solution with silver nitrate to determine free cyanide, I don't think you even need to add potassium iodide indicator. And even if you do, shouldn't it take an oxidizing agent to form cyanogen iodide in the first place? If I have the chemistry wrong, please let me know. I haven't done that particular analysis for a few years.

bill vins
Bill Vins
microwave & cable assemblies - Mesa (what a place-a), Arizona
1999




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"