Disodium Phosphate Anhydrous Food Grade CAS 7558-79-4
Buyer-facing sourcing candidate for food-grade disodium phosphate anhydrous from a China-based supplier listing. Key checks should confirm CAS 7558-79-4 for anhydrous grade, declared food-grade specification such as FCC/BP/USP, assay range around 98.0–101.0% on dry basis, and impurity limits for monosodium phosphate, sulfates, arsenic, iron, heavy metals, chlorides, and loss on drying. Buyers should request current COA, SDS, food-contact or food-additive compliance documentation, allergen/GMO statements where relevant, and export packing details before RFQ confirmation.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
CAS No.: 7558-79-4 for anhydrous form; verify hydrate form separately if offeredInorganic phosphate food additive / sodium phosphateCandidate for RFQ after CAS, grade, COA, and food-compliance document verification
CAS No.: 7558-79-4 for anhydrous form; verify hydrate form separately if offered
Alternative CAS references may include 10028-24-7 for dihydrate and 10039-32-4 for dodecahydrate; do not interchange without specification confirmation
Formula: Na2HPO4
EINECS: 231-448-7
Grade: Food grade listed; request confirmation against FCC, BP, USP, or customer standard
Assay/content: listed range 98.0–101.0% on dry basis
Purity: listing indicates ≥99%; reconcile with assay method and COA
Monosodium phosphate: listed limit ≤2.5%
Sulfates: listed limit ≤0.05%
Arsenic: listed at very low limit; request clear COA value and method
Iron: listed limit ≤0.002%
Who uses this page
Target buyers
Food ingredient importers
Food additive distributors
Dairy ingredient formulators
Meat processing ingredient buyers
Bakery ingredient suppliers
Beverage and dry mix manufacturers
Industrial food premix producers
Chemical distributors serving food-grade phosphate users
Before matching
Documents to check
CAS number, grade, assay, and impurity profile
SDS, COA, TDS, HS code, and transport classification
Destination-market import documents before supplier matching
Package and route
Packing notes
Standard listing pack: 25 kg bag
Inner packaging described as polyethylene bag
Outer packaging described as compound plastic woven bag or kraft paper bag; confirm exact export pack construction
Listed loading: 20 ft FCL approximately 25 MT without pallets; confirm palletized loading if required
Request moisture-resistant packaging and container-loading photos for export orders
Confirm labeling language, batch number, production date, net weight, country of origin, and food-grade markings
Confirm whether pallet, stretch wrap, fumigation-free pallet, or slip sheet options are available
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Use context
Common applications
Food additive sourcing where disodium phosphate is specified by CAS and food-grade standard
Buffering salt procurement for approved food applications subject to local regulations
Ingredient distribution requiring COA-backed phosphate quality control
Replacement or dual-source qualification for existing food-grade sodium phosphate supply
Private-label or distributor packing projects where export packaging and documentation are critical
How we compare
Sourcing options
Anhydrous disodium phosphate CAS 7558-79-4
Disodium phosphate dihydrate CAS 10028-24-7 if hydrate form is required
Disodium phosphate dodecahydrate CAS 10039-32-4 if hydrate form is required
Food-grade FCC/BP/USP specification supply
25 kg bag export packing
Full-container sea shipment, listed around 25 MT per 20 ft FCL without pallets
Sample or trial order subject to supplier confirmation
Human review
Compliance notes
Request current COA matching the offered batch and specification standard
Request SDS in the buyer’s required language and format
Request food-grade declaration and applicable FCC/BP/USP compliance statement if claimed
Request Halal, Kosher, ISO, GMP, or other certificates only if current and applicable to the manufacturing site and product
Verify whether the product is anhydrous, dihydrate, or dodecahydrate before import classification and formulation use
Confirm HS code with supplier and broker; listing indicates HS Code 283522
Check destination-country food additive approvals, permitted use categories, and labeling requirements with local regulatory counsel or importer of record
Ask whether the material is classified as dangerous goods for the intended transport mode; obtain DG/non-DG transport statement where needed
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
Is the quoted product strictly anhydrous disodium phosphate CAS 7558-79-4, or can hydrate grades also be supplied?
Which specification is being offered for this quotation: FCC, BP, USP, internal food grade, or customer-specific standard?
Can you provide a recent batch COA showing assay, loss on drying, monosodium phosphate, sulfate, chloride, iron, arsenic, lead/heavy metals, and pH if tested?
What is the exact packing: 25 kg kraft paper bag, woven bag, PE liner, number of layers, and pallet option?
What is the minimum order quantity, sample policy, and lead time for 1–20 MT and full-container orders?
Can you provide SDS, food-grade declaration, Halal/Kosher certificates, ISO/GMP certificates, and certificate validity dates?
Is the product treated as non-DG for sea and air shipment, and can you provide a transport classification statement?
What is the shelf life and recommended storage condition stated on the official product document?
Checks before quote
Request current COA matching the offered batch and specification standard
Request SDS in the buyer’s required language and format
Request food-grade declaration and applicable FCC/BP/USP compliance statement if claimed
Request Halal, Kosher, ISO, GMP, or other certificates only if current and applicable to the manufacturing site and product
Verify whether the product is anhydrous, dihydrate, or dodecahydrate before import classification and formulation use
Confirm HS code with supplier and broker; listing indicates HS Code 283522
Check destination-country food additive approvals, permitted use categories, and labeling requirements with local regulatory counsel or importer of record
Ask whether the material is classified as dangerous goods for the intended transport mode; obtain DG/non-DG transport statement where needed
Next step
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.
