Market
Calcium dihydrogen phosphate is a globally traded inorganic phosphate food additive commonly referred to as monocalcium phosphate and listed as INS 341(i) in the Codex/JECFA system. It is primarily used as a leavening acid in chemically leavened bakery products and baking powders, and also functions as an acidity regulator and nutrient supplement depending on application. Supply is industrial (not seasonal) and economically linked to the upstream phosphate rock and phosphoric acid value chain. Because phosphate rock mining and processing is geographically concentrated, upstream disruptions and price volatility can transmit into downstream food-grade phosphate ingredient availability and pricing.
Specification
Physical Attributes- Standardized food additive identity referenced as Calcium dihydrogen phosphate / Monocalcium phosphate (INS 341(i))
- Dry inorganic phosphate salt supplied as a handled powder for food manufacturing
Compositional Metrics- Phosphate additive evaluated within group tolerable intake frameworks expressed as phosphorus (P) by JECFA
Grades- Food additive grade aligned to JECFA identity and purity specifications used within Codex systems
ProcessingActs as a leavening acid component in chemical leavening systems (e.g., reacts with sodium bicarbonate in baking powders)Used as an acidity regulator, flour treatment agent, nutrient supplement, sequestrant, thickener, and yeast food (functional classes listed by JECFA)
Risks
Upstream Feedstock Concentration HighFood-grade calcium dihydrogen phosphate supply is ultimately tied to phosphate rock and phosphoric acid availability. Phosphate rock mining and capacity trends are concentrated in a small set of leading countries (with China highlighted as the largest mining producer in USGS materials), so upstream disruptions or policy changes can quickly tighten availability and raise costs across phosphate-derived ingredients.Qualify multiple approved suppliers across regions, monitor phosphate rock/phosphoric acid market signals, and use forward contracting or safety stocks for critical bakery-season demand periods.
Regulatory Compliance MediumPhosphate food additives are subject to ongoing scientific and regulatory review regarding total dietary phosphate exposure. JECFA groups phosphates under a maximum tolerable daily intake expressed as phosphorus, and EU scientific bodies have re-evaluated phosphate additives; shifts in use permissions, maximum use levels, or labeling expectations can affect demand and formulation choices.Maintain formulation and usage aligned to Codex/JECFA and key market regulations, and track scientific opinions and updates that may tighten usage conditions for phosphate additives.
Quality And Purity MediumInternational trade relies on conformance to identity and purity specifications (e.g., JECFA/Codex-aligned specifications). Off-spec material (including impurity control failures) can lead to shipment rejection, recalls, or customer delisting in regulated food additive supply chains.Use supplier qualification and routine testing aligned to applicable food additive specifications (COA review, audit programs, and periodic third-party verification).
Sustainability- Dependence on mined phosphate rock as the primary global phosphorus resource, linking the product to upstream mining and beneficiation impacts and finite-resource considerations
- Exposure to broader phosphate value-chain environmental scrutiny (e.g., waste management and emissions associated with phosphate processing)
FAQ
Is calcium dihydrogen phosphate the same thing as monocalcium phosphate?Yes. In the JECFA food additive database, calcium dihydrogen phosphate is listed with synonyms including monocalcium phosphate and is identified as INS 341(i).
What is calcium dihydrogen phosphate used for in foods?It is widely used as a leavening acid in chemically leavened bakery products and baking powders, and it may also be used as an acidity regulator and nutrient supplement depending on the formulation.
Why can phosphate rock market conditions affect this additive’s supply and price?Calcium dihydrogen phosphate is produced within the phosphate chemicals value chain that depends on phosphate rock resources; USGS notes phosphate rock is the only significant global resource of phosphorus and tracks concentrated mining trends, which can transmit upstream disruptions into downstream phosphate-derived ingredient markets.