Di-Ammonium Phosphate (DAP)

Introduction

Di-Ammonium Phosphate (DAP) is a highly soluble ammonium phosphate salt used extensively beyond agriculture as a fire retardant, yeast nutrient, metal finisher, and industrial chemical component.

Key Industrial Applications of DAP

• Fire Retardant: DAP acts as a fire-prevention agent in timber, paper, textiles, and cellulose-based products. It is also used in dry chemical fire extinguishers to inhibit the combustion process.

• Food and Beverage Industry: It serves as a vital nutrient in yeast cultures to aid fermentation in wine production. It is also used in the production of milk cultures for cheese.

• Metal Finishing and Flux: DAP is used as a flux in soldering tin, copper, brass, and zinc, as it effectively cleans surfaces of metal oxides.

Industrial Processing and Chemical Production

• Sugar Refining: Used in the purification of sugar.

• Textiles and Paper: Used for flameproofing and in specialized paper coatings.

• Paint and Dyes: Acts as a pH regulator and controls the precipitation of colloidal dyes on wool.

• Corrosion Inhibition: Used in water treatment and metal treating products.