1. Core Product Basic Information

Product Name: Ammonium Bicarbonate

CAS Number: 1066-33-7

EINECS Number: 213-911-5

E Number: E503

Molecular Formula: NH₄HCO₃

Grade: Food Grade / Industrial Grade

Appearance: White crystalline powder, odorless or with slight ammonia odor

Solubility: Soluble in water; insoluble in ethanol, acetone and ammonia

pH Value: 7.8–8.2 (0.1 mol/L aqueous solution)

2. Product Introduction

Ammonium Bicarbonate (E503, CAS 1066-33-7) is an inorganic ammonium salt produced through controlled carbonization, crystallization and purification processes. As a food additive, it is widely used as a leavening agent and pH regulator in food processing.

Food Grade Ammonium Bicarbonate decomposes easily under heating conditions and releases carbon dioxide and ammonia gas. This property makes it especially suitable for flat baked goods, biscuits, crackers and dry bakery products, where it helps achieve desired volume, crispness and uniform texture. It is also used as a processing aid in certain food and beverage systems.

3. Main Functions

Food Grade Core Functions (Detailed)

Leavening Agent Ammonium Bicarbonate decomposes when heated and releases gas. This reaction expands dough and batter structure, producing light, crisp and uniform texture in biscuits, crackers, cookies and similar bakery products.

pH Regulator & Buffer It helps adjust and maintain alkalinity in food systems. By controlling pH during processing, it supports stable reaction conditions and influences final product texture and flavor.

Processing Aid It acts as a processing aid in bakery and beverage production. It may assist in dough development, gas formation and structure improvement in specific food formulations.

Ammonia Source for Fermentation In some fermentation systems, it can serve as a nitrogen source and help create a favorable environment for microbial growth.

Industrial Grade Functions 

Used as a nitrogen source in fertilizers

Applied in pharmaceutical and chemical intermediate production

Used in certain industrial buffering and crystallization processes

4. Applications

Food Grade Applications

Biscuits, cookies and crackers

Flat baked goods and dry bakery products

Bread and pastry production

Beverages and food processing aids

Fermentation and nutrient preparation systems

Industrial Grade Applications (Brief)

Fertilizer industry

Pharmaceutical intermediates

Chemical synthesis

5. Package and Storage

Packaging

Standard packaging: 25 kg net per bag

Inner liner: PE liner for moisture protection

Bulk packaging: 500 kg / 1000 kg jumbo bags available

Custom packaging available upon request

Storage

Store in a cool, dry and well-ventilated warehouse

Keep the package tightly sealed

Protect from moisture, rain and direct sunlight

Avoid high temperature and incompatible acids

Recommended shelf life: 2 years under proper storage conditions

Use opened packages as soon as possible and reseal tightly