Skip to content
LexBuild

21 CFR § 172.710 - Adjuvants for pesticide use dilutions.

---
identifier: "/us/cfr/t21/s172.710"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 172.710 - Adjuvants for pesticide use dilutions."
title_number: 21
title_name: "Food and Drugs"
section_number: "172.710"
section_name: "Adjuvants for pesticide use dilutions."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "FOOD FOR HUMAN CONSUMPTION"
part_number: "172"
part_name: "FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 341, 342, 348, 371, 379e."
regulatory_source: "42 FR 14491, Mar. 15, 1977, unless otherwise noted."
cfr_part: "172"
---

# 172.710 Adjuvants for pesticide use dilutions.

The following surfactants and related adjuvants may be safely added to pesticide use dilutions by a grower or applicant prior to application to the growing crop:

*n-*Alkyl (C<sub>8</sub>-C<sub>18</sub>) amine acetate, where the alkyl groups (C<sub>8</sub>-C<sub>18</sub>) are derived from coconut oil, as a surfactant in emulsifier blends at levels not in excess of 5 percent by weight of the emulsifier blends that are added to herbicides for application to corn and sorghum.

Di*-n-*alkyl (C<sub>8</sub>-C<sub>18</sub>) dimethyl ammonium chloride, where the alkyl groups (C<sub>8</sub>-C<sub>18</sub>) are derived from coconut oil, as surfactants in emulsifier blends at levels not in excess of 5 percent by weight of emulsifier blends that are added to herbicides for application to corn or sorghum.

Diethanolamide condensate based on a mixture of saturated and unsaturated soybean oil fatty acids (C<sub>16</sub>-C<sub>18</sub>) as a surfactant in emulsifier blends that are added to the herbicide atrazine for application to corn.

Diethanolamide condensate based on stripped coconut fatty acids (C<sub>10</sub> C<sub>18</sub>) as a surfactant in emulsifier blends that are added to the herbicide atrazine for application to corn.

α-(*p-*Dodecylphenyl)*-omega-*hydroxypoly (oxyethylene) produced by the condensation of 1 mole of dodecylphenol (dodecyl group is a proplyene tetramer isomer) with an average of 4-14 or 30-70 moles of ethylene oxide; if a blend of products is used, the average number of moles of ethylene oxide reacted to produce any product that is a component of the blend shall be in the range of 4-14 or 30-70.

Ethylene dichloride.

Polyglyceryl phthalate ester of coconut oil fatty acids.

α-[*p-*(1,1,3,3-Tetramethylbutyl) phenyl]*-omega-*hydroxypoly(oxyethylene) produced by the condensation of 1 mole of *p-*(1,1,3,3-tetramethylbutyl) phenol with an average of 4-14 or 30-70 moles of ethylene oxide; if a blend of products is used, the average number of moles of ethylene oxide reacted to produce any product that is a component of the blend shall be in the range of 4-14 or 30-70.

α-[*p-*(1,1,3,3-Tetramethylbutyl) phenyl]-*omega-*hydroxypoly(oxyethylene) produced by the condensation of 1 mole of *p-*(1,1,3,3-tetramethylbutyl) phenol with 1 mole of ethylene oxide.

Sodium acrylate and acrylamide copolymer with a minimum average molecular weight of 10,000,000 in which 30 percent of the polymer is comprised of acrylate units and 70 percent acrylamide units, for use as a drift control agent in herbicide formulations applied to crops at a level not to exceed 0.5 ounces of the additive per acre.