Sodium Aluminium Phosphate Acidic
Sodium Aluminium Phosphate Acidic is a complex inorganic salt of approximate formula NaH₁₄Al₃(PO₄)₈·4H₂O used as a slow acting leavening acid in cakes, doughnuts, and refrigerated dough.
The compound, abbreviated SALP, was for decades the dominant heat activated leavening acid in North American cake mixes. It is now part of a category that bakeries are voluntarily reformulating as they move toward aluminium free systems.
We source bulk Sodium Aluminium Phosphate Acidic from top China manufacturers for our partners. The manufacturers are in Jiangsu. For this ingredient the minimum order is 500 kg and a 20-foot container takes 20 MT, and a smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Minimum order
- 500 kg
- Qty in 20' FCL
- 20 MT
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
| Item | Specification |
|---|---|
| Appearance | White free-flowing powder, odourless |
| Assay (as NaH₁₄Al₃(PO₄)₈·4H₂O, dried basis) | ≥ 95.0% |
| P₂O₅ Content | 55.0-60.0% |
| Al₂O₃ Content | 16.0-19.0% |
| Na₂O Content | 3.0-5.0% |
| Neutralising Value | 100 ± 5 |
| Dough Rate of Reaction (8 min) | ≤ 25% |
| pH (1% suspension) | 3.0-4.5 |
| Loss on Ignition (800 °C) | 19.0-22.0% |
| Fluoride (as F) | ≤ 25 mg/kg |
| Insoluble in Hydrochloric Acid | ≤ 0.2% |
| 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 |
Common Markets Grades
Food grade Sodium Aluminium Phosphate Acidic is a free flowing white powder.
The principal commercial grade is the tetrahydrate, sold under product names that indicate dough rate of reaction values typically below 25 percent at eight minutes of mixing.
An anhydrous variant, with a different reactivity curve, is produced for niche applications. Particle size is tightly controlled because reactivity scales with available surface area.
Applications
- Slow acting leavening acid in cake doughnut mixes
- Layer cake and pound cake formulations that need late oven lift
- Refrigerated biscuit dough that must survive weeks of cold storage
- Frozen pancake and waffle batters
- Muffin and quick bread mixes
- Self rising flour blends used in commercial bakeries
- Pre dusted breading systems for fried foods
- Component of double acting baking powders paired with a fast acting acid
- Industrial bakery operations with long mix and hold times
- Some processed cheese formulations as an emulsifying salt
China Manufacturers of Sodium Aluminium Phosphate Acidic
Top Sodium Aluminium Phosphate Acidic manufacturers in China.
Jiangsu Hens Food Technology Co., Ltd.11 ingredients in the directory- Xuzhou Hens Phosphate Co., Ltd.11 ingredients in the directory
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Sodium Aluminium Phosphate Acidic
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Sodium Aluminium Phosphate Acidic out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Sodium Aluminium Phosphate Acidic together with other ingredients such as Sodium Acid Pyrophosphate, Monocalcium Phosphate and Diammonium Phosphate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Sodium Aluminium Phosphate Acidic falls within the broader regulatory picture for aluminium containing additives.
In the European Union aluminium based additives have been progressively restricted under regulation 1333/2008 and many uses have been withdrawn.
The U.S. Food and Drug Administration recognises the salt as GRAS under 21 CFR 182.1781 for use as a leavening agent and pH control agent.
Several large bakery customers and quick service restaurants have reformulated to aluminium free leavening systems based on sodium acid pyrophosphate or calcium acid pyrophosphate. The remaining commercial use is concentrated in markets where consumer preference and regulatory pressure permit.
Manufacturing Process
Sodium Aluminium Phosphate Acidic is produced by reacting sodium phosphate solutions with aluminium hydroxide and phosphoric acid in carefully controlled stoichiometry.
The crystalline product forms a complex hydrated structure built from sodium, aluminium, hydrogen, and phosphate units. Industrial process recipes vary from one manufacturer to another, and each treats them as trade secrets.
After crystallisation the product is filtered, washed, dried at moderate temperature to preserve the tetrahydrate, and then milled to the target particle size. Quality control relies on neutralising value, dough rate of reaction, and X-ray diffraction confirmation of the correct crystalline phase.
