Sanitizing Cleaner

Ingredients

Component	INCI / Chemical Name	Function	% w/w
DDAC 50 % solution	Didecyldimethylammonium chloride	Active sanitizer	0.60
Sodium C14–16 olefin sulfonate	Sodium C14-16 Olefin Sulfonate	Anionic surfactant (cleaning)	2.50
Cocamidopropyl betaine (30 %)	Cocamidopropyl Betaine	Amphoteric surfactant, foam booster	3.00
Sodium citrate	Sodium Citrate	Builder, pH buffer	0.50
Deionized water	Aqua	Solvent	93.40
Total			100.00

Addition Order & Process

Procedure: Dissolve sodium citrate in deionized water. Add sodium C14–16 olefin sulfonate and cocamidopropyl betaine sequentially, mixing for 10 minutes. Add DDAC 50 % solution and mix for 15 minutes. Verify pH at 6.0–7.0; adjust with citric acid or dilute NaOH if necessary. Final DDAC active: 0.3 % w/w.

Formulation Notes

Food-contact surfaces require a dual-action product that cleans and sanitizes in one step. Regulatory frameworks permit no-rinse sanitizers on food-contact surfaces provided the active concentration remains within specified limits and the product is drained before reuse . This formulation employs DDAC at 0.3 % active, approved for food-contact sanitization at 200–400 ppm with a 30-second to 1-minute contact time .

Formulation Card FC-11.2-M: Sanitizing Cleaner (Food-Contact Surfaces)

The anionic and amphoteric surfactants create mixed micelles that enhance soil removal, while the betaine acts as a compatibilizer, reducing QAC–anionic complexation. DDAC is preferred over BAC in food-contact applications due to lower residual taste and higher tolerance to anionic carryover . Permissible QAC concentrations vary by jurisdiction: 200 ppm in the United States (EPA 40 CFR 178.1010) and 150–400 ppm in the EU under the Biocidal Products Regulation (EU) No 528/2012 .