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Calcium Acid Pyrophosphate

Calcium Acid Pyrophosphate (CaH₂P₂O₇) is a food-grade white crystalline powder used as a slow-reacting leavening acid in baking powder formulations, refrigerated doughs, and self-rising flours.We supply bulk Calcium Acid Pyrophosphate sourced from leading China manufacturers, available in powder form for food and beverage manufacturers worldwide. Our Calcium Acid Pyrophosphate is widely used in commercial baking powders, pizza doughs, par-baked goods, pancake/waffle mixes and industrial cake systems.

Kosher Halal ISO 9001 BRC
CAS No.
14866-19-4

Introduction

Calcium Acid Pyrophosphate (CAPP) is produced by controlled reaction of calcium hydroxide with phosphoric acid followed by thermal dehydration. As a leavening acid it is characterized by its slow reaction rate — most of the CO₂ is released during the baking phase rather than during mixing — making it ideal for products requiring delayed leavening action such as refrigerated biscuit doughs, frozen bakery, and packaged cake mixes.

Its neutralizing value (NV) is approximately 80, meaning 80 parts baking soda are neutralized by 100 parts CAPP. Food-grade CAPP complies with Food Chemicals Codex (FCC) specifications, FDA 21 CFR 182.1217 (GRAS), and is used worldwide in industrial and commercial baking systems. Calcium content provides nutritional fortification while phosphate provides leavening and mineral reinforcement.

Uses

  • Slow-acting leavening in commercial baking powders
  • Refrigerated biscuit and pizza doughs
  • Frozen bakery products and par-baked goods
  • Self-rising flour and pancake/waffle mixes
  • Cake doughnuts and industrial cake systems

Specifications

Grades / Types Available: GB 1886.326-2021, FCC, E 450(vii)

ItemSpecification
AppearanceWhite fine crystalline powder
Assay (CaH₂P₂O₇)≥ 90.0%
Neutralizing Value (NV)72–82
P₂O₅ Content≥ 60.0%
CaO Content20–22%
Loss on Ignition≤ 10.0%
pH (1% slurry)3.5–4.5
Fluoride (F)≤ 50 mg/kg
Particle Size≥ 95% through 100 mesh
Heavy Metals (as Pb)≤ 10 mg/kg
Lead (as Pb)≤ 2 mg/kg
Arsenic (as As)≤ 3 mg/kg
Purity (GB 1886.326-2021)95.0-100.5%
Content (P2O5)61.0-66.0%
Arsenic ≤3.0 mg/kg (GB 1886.326-2021) / 1 mg/kg (E 450(vii))
Lead ≤2.0 mg/kg (GB 1886.326-2021) / 1 mg/kg (E 450(vii))
Fluoride ≤30.0 mg/kg (as F) (GB 1886.326-2021) / 30 mg/kg (as fluorine) (E 450(vii))
Loss on ignition ≤10.0%
Test for calciumPasses test (E 450(vii))
Test for phosphatePasses test (E 450(vii))
Acid-insoluble matter ≤0.4% (E 450(vii))
Cadmium ≤1 mg/kg (E 450(vii))
Mercury ≤1 mg/kg (E 450(vii))
Aluminium ≤200 mg/kg (E 450(vii))

Other
Conditions

MOQ

Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Calcium Acid Pyrophosphate with other food ingredients in one shipment to save on freight.

Samples

We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.

Lead Time

Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.

Documents

You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.

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