Monocalcium phosphate
Description
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.
Its fast acid-release profile makes it a preferred choice in baking systems where rapid CO₂ generation is required. In baked goods, it acts as a fast-acting leavening acid, reacting with sodium bicarbonate to produce lift.
This chemical is essential for products such as self-rising flour, baking powder blends, and pancake mixes. Feed manufacturers incorporate it as a bioavailable phosphorus and calcium supplement in poultry and swine diets.
It is also used in aquaculture diets to support bone development and feed conversion. Food processors use it as a buffering and sequestering agent in processed cheeses and canned products to stabilize pH levels.
In fertilizer applications, it functions as a soluble phosphate source that improves nutrient uptake in high-value crop programs. This versatility makes it a staple in both the agricultural and food processing sectors.
The product is supplied as a white powder or granule, with granulated forms preferred in feed and fertilizer blending for improved flowability. Standard grades include food-grade (FCC compliant) for baking.
Other available options include feed-grade for animal nutrition use. These quality standards ensure the material meets the rigorous safety and performance requirements of global industrial and food manufacturing supply chains.
Physical Properties
| Melting Point | 109 °C |
| Boiling Point | 203 °C (decomposes) |
| Density | 2.220 g/cm³ @ Temp: 18 °C |
| Appearance | white crystalline powder |
| Odor | Odorless |
| Form | Crystals |
| Water Solubility | insoluble |
| Refractive Index | 1.5176 |
| Log P | -2.148 (est) |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 31031010 |
| WGK (Germany) | 2 |
Documentation
Other Names
monobasic calcium phosphate|E341i|Calcium diorthophosphate|Calcium dihydrogenphosphate|anhydrous monobasic calcium phosphate|Calcium biphosphate|CALCIUM PHOSPHATE MONOBASIC|Acid calcium phosphate|MCP
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