Monocalcium phosphate

Monocalcium phosphate (CAS 7758-23-8), also known as MCP and classified as E341i, is a calcium phosphate salt used primarily as a leavening acid and pH regulator in food manufacturing.

Where is Monocalcium phosphate used?

• Baked goods: fast-acting leavening acid reacting with sodium bicarbonate to produce lift
• Self-rising flour, baking powder blends and pancake mixes
• Processed cheeses and canned products: buffering and sequestering agent to stabilize pH
• Poultry and swine diets: bioavailable phosphorus and calcium supplement
• Aquaculture diets: supports bone development and feed conversion
• Fertilizer: soluble phosphate source improving nutrient uptake in high-value crops
• Granulated forms are preferred in feed and fertilizer blending for improved flowability.
• Acidity regulator in carbonated beverages.
• Gelling agent in jam and jelly production.
• Raw material for feeding dairy cows, contributing to mineral balance and bone strength.

Typical specification

• Releases 60-70% of its carbon dioxide within a few minutes after mixing.
• More than 75% of the phosphorus is water-soluble, making it well utilized by rumen microorganisms.
• Total phosphorus content: 22.7%.

Regulatory status

• Specifications for use as a food additive are laid down in EU Regulation 231/2012.
• Included in the Codex Alimentarius (FAO/WHO).
• Belongs to the calcium phosphates group and has a Ca/P ratio below 0.9, compliant with European regulation.

Storage, packaging and handling

• Commonly shelf life: 24 months.
• Commonly packed in 25 kg bags.
• Store in a dry and cool place.

Frequently asked questions about Monocalcium phosphate

What is the pH range of monocalcium phosphate in aqueous solution?

It has a pH of 3.5 to 4.5.

What are the typical physical forms of monocalcium phosphate?

It is presented as a free-flowing powder or small white or grayish granules.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.