Chemical Classification of SBS Pet™
SBS Pet™ is a dry granular acid that easily dissolves in water. It dissociates into sodium ions, hydrogen ions and sulfate ions.
Chemical formula of SBS Pet™NaHSO4→Na+ + H+ + SO4-2
In 1997, sodium bisulfate was approved for use in animal feed. It is classified as a general-purpose feed additive under the Association of American Feed Control Officials’ (AAFCO) Feed Ingredient Definition. It is considered non-hazardous by DOT, therefore not regulated. OSHA identifies it as an irritant and the NFPA hazard rating is 1-0-1. It’s dry, granular state means that, if spilled it can be swept up, eliminating the environmental headaches associated with liquid acids.
Understanding Acid Strength: A Comparison
Acid strength is denoted by pKa value (Figure 1). The lower the pKa value the stronger the acid. For pH applications below 3.6, less SBS Pet™ is required to lower pH than most commonly used acids, including phosphoric acid, which reduces cost in pet food, treats, slurry or any low pH application.
Acid Strength5 |
|
| Acid | pKa Value |
| Sodium Bisulfate | 1.99 |
| SAPP | 2.10 |
| Phosphoric Acid | 2.16 |
| Citric Acid | 3.14 |
| Acetic Acid | 4.75 |
| Propionic Acid | 4.87 |
For most applications, sodium bisulfate can replace 75% phosphoric acid on a pound for pound basis. Since sodium bisulfate is less expensive than phosphoric acid, its use will yield savings immediately.
Certifications
- FDA approved for use in animal feed in 1997
- AAFCO Feed Ingredient Definition: General Purpose Food Additive Table #87.5
- CVM (Center for Veterinary Medicine):
- Accepted for use in pet food as an acidulant at levels consistent with good manufacturing practices, March 1999.
- Acceptable ingredient in cat foods seeking to make urinary health tract claims.
- Justified on a Nutritional Basis.
- Manufactured under GFSI FSSC 22000
- Formal HACCP program in place
- U.S. Patent 5,773,063
