[Title 21 CFR 173.300]
[Code of Federal Regulations (annual edition) - April 1, 1996 Edition]
[Title 21 - FOOD AND DRUGS]
[Chapter I - FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)]
[Subchapter B - FOOD FOR HUMAN CONSUMPTION]
[Part 173 - SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION]
[Subpart D - Specific Usage Additives]
[Sec. 173.300 - Chlorine dioxide.]
[From the U.S. Government Publishing Office]




  21
  FOOD AND DRUGS
  3
  1996-04-01
  1996-04-01
  false
  Chlorine dioxide.
  173.300
  Sec. 173.300
  
    FOOD AND DRUGS
    FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)
    FOOD FOR HUMAN CONSUMPTION
    SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION
    Specific Usage Additives
  


Sec. 173.300   Chlorine dioxide.

    Chlorine dioxide (CAS Reg. No. 10049-04-4) may be safely used in 
food in accordance with the following prescribed conditions:
    (a) The additive is generated by treating an aqueous solution of 
sodium chlorite with either chlorine gas or a mixture of sodium 
hypochlorite and hydrochloric acid. The generator effluent contains at 
least 90 percent (by weight) of chlorine dioxide with respect to all 
chlorine species as determined by Method 4500-ClO2 E in the 
``Standard Methods for the Examination of Water and Wastewater,'' 18th 
ed., 1992, or an equivalent method. Method 4500-ClO2 E is 
incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 CFR 
part 51. Copies are available from the Center for Food Safety and 
Applied Nutrition (HFS-200), Food And Drug Administration, 200 C St., 
SW., Washington, DC 20204-0001 and The American Public Health 
Association, 1015 Fifteenth St., NW., Washington, DC 20005, or may be 
examined at the Office of the Federal Register, 800 North Capitol St., 
NW., suite 700, Washington, DC.
    (b) The additive may be used as an antimicrobial agent in water used 
in poultry processing in an amount not to

[[Page 126]]

exceed 3 parts per million (ppm) residual chlorine dioxide as determined 
by Method 4500-ClO2 E referenced above or an equivalent method.

[60 FR 11900, Mar. 3, 1995. Redesignated at 61 FR 14245, Apr. 1, 1996, 
as amended at 61 FR 14480, Apr. 2, 1996]