Neutralizing value
NV is the mass of sodium bicarbonate neutralized by 100 parts by mass of leavening acid. Request the grade value, test method, sample basis and endpoint; no Bespring NV is specified here.
Leavening acid · INS 541(i) · SALP
Food Grade Sodium Aluminum Phosphate
Bespring supplies food grade acidic sodium aluminum phosphate (SALP), a white powder evaluated with sodium bicarbonate in bakery leavening systems. Confirm the composition, food standard, neutralizing value and reaction profile for your formula before ordering.
- General CAS*
- 7785-88-8
- INS number
- 541(i)
- Product type
- Acidic SALP
- Assay
- ≥ 95.0%
Product illustration · grade and packaging specified in your offer
*7785-88-8 is a general SALP reference, not proof of a specific composition. Request the grade-specific SDS and specification; include your application, quantity and destination.
≥ 95.0% assayReference purchasing specification
25 kg packagingStandard industrial food-ingredient pack
500 kg reference MOQReconfirm current order terms
24 MT / 20FCLReference container loading
Product overview
What is food grade SALP?
Food grade acidic sodium aluminum phosphate (SALP), also spelled sodium aluminium phosphate, is a raising agent identified as INS 541(i). It supplies acid for the sodium bicarbonate reaction that releases carbon dioxide in doughs and batters. JECFA acidic SALP specification.
The supplied pH and assay description identify this page as acidic SALP. The reference sheet names Na3Al2H15(PO4)8, the non-tetrahydrate composition (JECFA formula weight 897.82); its 15–16% ignition loss is consistent with that reference, but does not independently verify composition. JECFA also defines a tetrahydrate, NaAl3H14(PO4)8·4H2O (949.88). Require the offered grade's identity and assay basis in the signed specification.
Basic SALP, INS 541(ii), is a different emulsifying material and is not the leavening acid described here. The FDA identity record groups acidic and basic SALP under CAS 7785-88-8; that general number alone cannot distinguish them.
Procurement snapshot
- Product
- Sodium aluminum phosphate, acidic
- Function
- Raising / leavening agent
- Appearance
- White powder
- pH
- 2–3 (1% suspension)
- Standard pack
- 25 kg bag
- Quality documents
- Specification / COA / SDS*
*Request available documents for the offered grade. Review any certificates against the exact product, site and validity period; see our document qualification guidance.
Formulation value
Why is SALP used in leavening systems?
Acidic SALP supplies acidity for bicarbonate-based leavening. Acid capacity and gas-release timing are separate purchase criteria; neither assay nor a generic SALP name defines the complete baking response.
Reaction profile
Request gas release over time under stated mixing, holding and heating conditions. A slow or heat-responsive designation needs grade data; NV does not measure reaction speed.
Formula balance
Specify bicarbonate quantity and its weight basis, other acids, water availability and particle requirements. Check dispersion and dry-blend uniformity in the actual recipe.
Application trials
Match mixing temperature, hold time and bake or fry profile. Measure finished pH, volume, cell structure, color, flavor and texture against an approved control.
For definitions and formulation variables, see the American Society of Baking chemical leavening guide. Its generic descriptions are not a performance guarantee for the Bespring grade.
Typical application areas
Food grade SALP applications
The following are formulation screening areas. Approve the exact food category, use conditions and label declaration in the manufacturing and destination markets before commercial use.
Bakery & baking powder
Evaluate acidic SALP as one component of a bicarbonate-based system. The grade must match the mix-to-bake interval and heating profile.
- Baking powder and leavening blends
- Cakes, muffins and quick breads
- Commercial bakery premixes
Fried dough & dough systems
For permitted fried-dough formulations, compare the offered grade with the full forming-to-frying process. Do not assume that its gas-release curve matches a baking process.
- Deep-fried dough products
- Doughnut and similar mixes
- Premixes qualified for the intended fried product
Compare SAPP reaction-rate grades and MCP monohydrate identity and leavening controls using each grade's NV and reaction method. Anhydrous DCP has a different identity and qualification path. These are not equal-weight substitutes. For a combined system, see bakery premix trial design, leavening phosphate selection and composition-controlled phosphate blends.
Market review: U.S. 21 CFR 182.1781 sets a good-manufacturing-practice condition for SALP. EU Regulation 380/2012 introduced a narrowly defined sponge-cake use for acidic E541; do not infer permission for general bakery or fried dough. Consult the current consolidated rules and Codex GSFA provisions for the intended category. SALP contains aluminum as part of its composition: a food-use limit expressed as aluminum is distinct from an impurity limit and from the mass of SALP added.
Product specification
Food grade sodium aluminum phosphate specification
These commercial reference limits preserve the existing SALP data sheet values. They are not standard requirements or batch results. Confirm composition, assay basis, methods and agreed acceptance limits before comparing a lot COA.
Swipe or use the keyboard to read all columns
| Test item | Specification | Expression |
|---|---|---|
| SALP assay (Na3Al2H15(PO4)8) | ≥ 95.0% | Supplied specification |
| Arsenic (As) | ≤ 0.0005% | ≤ 5 mg/kg |
| Heavy metals (as Pb) | ≤ 0.001% | ≤ 10 mg/kg |
| Lead (Pb) | ≤ 0.0002% | ≤ 2 mg/kg |
| pH (1% suspension) | 2–3 | Acidic |
| Loss on ignition | 15–16% | Confirm method on specification |
| Appearance | White powder | Visual |
On small screens, swipe the table to read all columns. Percentage-to-mg/kg conversions use a mass basis; confirm the source's reporting basis.
Standard comparison: The commercial arsenic maximum is 5 mg/kg; JECFA acidic SALP specifies 3 mg/kg. The commercial limit therefore does not establish JECFA conformity. JECFA also specifies fluoride at 25 mg/kg, absent from this table; obtain its result and the remaining identity/purity tests. Lead at 2 mg/kg matches the JECFA numerical limit. “Heavy metals as Pb” is a separate aggregate test, not a substitute for individual elements.
Methods and basis: JECFA's 15–16% ignition loss applies to the named non-tetrahydrate form at 750–800°C for 2 hours. Agree the commercial method, assay reporting basis, ignition conditions and preparation/temperature for the 1% suspension pH; this pH range is a commercial parameter, not the JECFA identification test.
Packing & logistics
Commercial packing for export
The SALP reference gives 25 kg bags and 24 MT per 20-foot container. Treat these as planning figures; confirm bag/liner, pallet arrangement, gross weight, route and payload limits for the actual shipment.
- Standard packaging25 kg per bag. Confirm liner, bag material and labeling before order.
- Minimum order500 kg in the existing commercial reference; reconfirm the current MOQ with the quote.
- Reference loading24 MT per 20FCL, subject to final shipment confirmation.
Storage & shelf life
Keep SALP cool, dry and sealed
- Warehouse conditionsStore in a cool, dry and ventilated place away from direct sunlight.
- TemperatureExisting SALP guidance specifies not exceeding 30°C; confirm conditions and shelf life in the current source documents.
- Moisture protectionKeep packaging sealed and protect from high humidity and contamination.
Buyer questions
Food grade SALP FAQ
Is this SALP acidic or basic?
This page covers the acidic leavening material described in the reference sheet, INS 541(i). Basic SALP, INS 541(ii), is a different emulsifying material. Confirm the offered composition and grade-specific identity in the specification and SDS.
What do INS 541(i), E541 and CAS 7785-88-8 mean?
INS 541(i) identifies acidic SALP; E541 is the EU designation for acidic sodium aluminium phosphate. FDA lists CAS 7785-88-8 as a general reference grouping acidic and basic SALP. These identifiers do not prove a particular composition, batch purity or permission in every food category.
Is neutralizing value the same as reaction rate?
No. NV expresses the mass of sodium bicarbonate neutralized by 100 parts by mass of leavening acid. Reaction rate describes gas release over time under defined conditions. Request both with their methods; this reference sheet provides neither a grade NV nor a measured reaction curve.
Can SALP replace SAPP or MCP at the same weight?
Do not assume equal-weight replacement. Use the offered grades’ verified neutralizing values, then compare reaction timing, finished pH and baking or frying results in the complete formula. Hydration form and physical grade also matter.
Does this reference specification demonstrate JECFA conformity?
No. Its arsenic maximum is 5 mg/kg versus the JECFA acidic SALP maximum of 3 mg/kg, and fluoride and several test details are not listed. Request an appropriate signed specification and batch results for the selected standard.
Is this specification the same as a batch COA?
No. The table contains commercial reference limits. A COA reports results for an identified lot, with the agreed methods and reporting basis. It must be checked against the approved purchase specification.
How is food grade SALP packed and loaded?
The existing SALP reference states 25 kg per bag, a 500 kg MOQ and 24 MT per 20-foot container. Reconfirm current order terms, bag/liner, pallet requirements and shipment payload before ordering.
What information is needed for an SALP quotation?
Provide the acidic grade, food standard, key limits, NV/reaction requirements, food application, bicarbonate basis and mix/hold/heating process. Include quantity, packaging, destination country/port, delivery terms and target date.
Can I request product documents or a sample?
Ask for the current specification, TDS, SDS, representative or batch COA and any certificates required for your market. Confirm document availability, product/site scope, validity and sample arrangements for the exact offered supply.
Start a sourcing conversation
Request an SALP quote
Request food grade acidic SALP with the identity, impurity limits and reaction data needed for your application. Use the requirements field to provide technical details and document requests.
- Acidic grade, food standard, key limits and documents
- Quantity, packaging, pallets and delivery terms
- Destination country or port
- Bicarbonate basis, mix/hold/heating process and delivery target
Product documents
Request documents
Tell us your grade and destination market so we can confirm which documents are available for your order.
An external reference is not a batch certificate or a Bespring product specification.