Quick Links: Skip to main page content Skip to Search Skip to Topics Menu Skip to Common Links
  • Decrease font size
  • Return font size to normal
  • Increase font size
U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications
  • Print
  • Share
  • E-mail
-
 

FCN No. 18

 
Return to Listing
 
Food Contact Substance:  Sodium acrylate/styrene sulfonate copolymer
 
Notifier:  Nalco Chemical Company
 
Manufacturer:  Nalco Chemical Company
 
Intended Use:  As an antiscalant boiler water treatment where steam from treated boilers may contact food.
 
Effective Date:  04/07/2000
 
Limitations/Specifications:  The food contact substance contains not more than 15% styrene sulfonate and has a molecular weight greater than 20,000 and a polydispersity of 2.0 - 3.3, as measured by a method entitled "Molecular Weight Distribution of Aqueous Anionic Polymers by Size Exclusion Chromatography (SEC) Using Synchropak GPC Columns". The substance must not exceed 20 ppm in feed water, must not be used in boilers at pressures above 1000 pounds per square inch gauge (psig), and must meet any applicable specifications prescribed in 21 CFR 173.310.
 
Environmental Impact Decisions:  Environmental Decisions Site
-
-