Potassium Iodide ˆ Starch Paper strips (White Strips) will turn purple when exposed to oxidizers.

Fisher Scientific sells these test paper strips.

http://www.fishersci.com/ecomm/servlet/fsproductdetail?storeId=10652&productId=642441&catalogId=29104&matchedCatNo=14860&endecaSearchQuery=%23store%3DScientific%23N%3D0%23rpp%3D15&fromSearch=1&searchKey=starch||potassium||iodide&highlightProductsItemsFlag=Y

Michael Ng
Environmental Health and Safety Manager
Long Island University Brooklyn Campus
Buildings and Grounds
1 University Plaza M101
Brooklyn, NY 11201
Tel: (718)-488-1608
Fax: (718)-488-3337
michael.ng**At_Symbol_Here**liu.edu
From: ILPI >
Reply-To: DCHAS-L >
Date: Tue, 13 Dec 2011 17:24:04 -0500
To: >
Subject: [DCHAS-L] Testing company for oxidizer determination

We have a colleague with the following question.  Can anyone point him in the direction of a testing lab or other expert that can make the determination?

You can reply directly to me and I will collate the responses and post them to the list in a single post.

Thanks,

Rob Toreki

Where can I send a sample of liquid to have a determination done as to classification for shipping/storage/handling purposes as to whether it is an oxidizer?

It is essentially a suspension of zinc oxide, with some sodium nitrate.
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