[Histonet] RE: recycled alcohol versus reagent grade alcohol

[Debra Siena]

Hi Ryan,

Reagent grade alcohol can be purchased in different percentages such as 50% to 100%, etc.  It depends on what you purchase.    Reagent alcohol is simply a blend of three different alcohols, ethanol, methanol, and isopropyl and is created using a formula that is stated by the federal government to make it poisonous for human consumption.  

Recycled alcohol never comes back as 100%, and does vary from 95% to about 98%.   

  Debbie Siena, HT(ASCP)QIHC
StatLab Medical Products
Technical Support Manager
407 Interchange Street | McKinney, TX 75071
t: 800.442.3573 ext. 229 | f: 972.767.3992
dsiena <@t> statlab.com | www.statlab.com


-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Roy, Ryan
Sent: Friday, March 27, 2015 7:53 AM
To: histonet <@t> lists.utsouthwestern.edu
Subject: [Histonet] recycled alcohol versus reagent grade alcohol

Hello Histonet,

How do other labs test and verify the percent grade of alcohols and what is the assumed percent grade of reagent alcohol? We use recycled alcohols but today based on not having reagent grade we used 97% tested recycled as our flush.

The reasoning behind this was that Reagent grade varies from 95%-greater than 100%. Is this true?

Thanks in advance,

Ryan
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