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Sodium Tripolyphosphate (STPP) 94% Food Grade Candidate, CAS 7758-29-4 sourcing visualCandidate for RFQ and document verification
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Sodium Tripolyphosphate (STPP) 94% Food Grade Candidate, CAS 7758-29-4

Buyer-facing sourcing profile for Sodium Tripolyphosphate (STPP), CAS 7758-29-4, offered as a 94% food-grade candidate from China with 25 kg bag packing. Suitable for RFQ comparison where buyers need confirmation of CAS identity, Na5P3O10 assay, food-grade impurity limits, COA/MSDS/TDS readiness, packing details, and export experience including Vietnam routes.

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.: 7758-29-4Inorganic phosphate / sodium phosphate additive candidateCandidate for RFQ and document verification
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Identity and grade

Typical specifications

  • CAS No.: 7758-29-4
  • Chemical name: Sodium Tripolyphosphate
  • Abbreviation: STPP
  • Molecular formula: Na5P3O10
  • Molecular weight: 258
  • Appearance: white powder or crystal
  • Advertised grade: food grade candidate; verify against destination-market food additive requirements
  • Advertised purity: 94%; page specification also lists Na5P3O10 90.0% min, requiring batch COA clarification
  • P2O5: 56.0-59.0%
  • Water insoluble matter: 0.10% max
  • Fluoride (F): 20 mg/kg max
  • Arsenic (As): 3 mg/kg max
Who uses this page

Target buyers

  • Vietnam chemical importers sourcing sodium phosphates
  • Food ingredient distributors requiring document-ready STPP candidates
  • Detergent and cleaning product raw material buyers
  • Water treatment chemical distributors
  • Industrial chemical traders handling phosphate products
  • Seafood and meat processing ingredient procurement teams subject to local compliance review
  • Ceramics, textile, drilling, and industrial formulation buyers
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

  • Listed packing: 25 kg/bag
  • Listed transport package: 25 kg/bag
  • Listed package size: 80 cm x 40 cm x 20 cm
  • Listed gross weight: 25.2 kg per package
  • Confirm inner liner, moisture barrier, palletization, container loading quantity, and whether export markings can match buyer requirements
  • For Vietnam import planning, request photos of actual bags, label artwork, batch coding, and pallet/container stuffing plan before shipment
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

  • RFQ comparison for STPP 94% or food-grade STPP candidates
  • Incoming QC planning based on CAS, assay, P2O5, heavy metals, fluoride, and insolubles
  • Import documentation review for China-to-Vietnam chemical shipments
  • Supplier prequalification for sodium phosphate sourcing
  • Packing and container-loading confirmation for 25 kg bag shipments
  • Dual-use evaluation where the buyer must distinguish food additive use from industrial use
How we compare

Sourcing options

  • Request a sample with matching batch COA before bulk order
  • Ask for both food-grade and industrial-grade quotations if the application is not food-related
  • Compare 94% STPP offers against 90% min specification offers on assay-adjusted price basis
  • Request FOB Qingdao or nearby China port and CIF Vietnam pricing for landed-cost comparison
  • Request neutral export packing or buyer-specific labeling only where compliant with product identity and destination rules
  • Use third-party pre-shipment inspection for assay, moisture-sensitive packing, labeling, and container condition
Human review

Compliance notes

  • Request current COA, MSDS/SDS, TDS, food-grade declaration if applicable, and certificate of origin before purchase order
  • Confirm whether the offered batch meets the buyer's intended destination standard for food additive or industrial use; do not rely only on marketplace grade wording
  • CAS, formula, assay, P2O5, insolubles, fluoride, arsenic, lead, and heavy metals should be checked against batch-specific COA
  • Clarify discrepancy between title claim of STPP 94% and specification line showing Na5P3O10 90.0% min
  • Confirm HS code, export declaration name, and any destination import documentation required for Vietnam or other overseas markets
  • Verify whether product is classified as dangerous goods for the planned transport mode with the supplier's SDS and freight forwarder; obtain written DG/non-DG shipping confirmation
  • Food-contact or food-additive use requires buyer-side regulatory review in the destination market; supplier statements should be documented but not treated as regulatory guarantees
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.

Sodium TripolyphosphateSTPPSTPP 94%food grade STPPCAS 7758-29-4Na5P3O10sodium phosphate China exportSTPP China to Vietnamphosphate builderdetergent grade STPPfood additive phosphateQingdao STPP supplier
Related product options

Build a broader quote package from adjacent options.

Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.

Sodium Tripolyphosphate STPP sourcing visual
Inorganic phosphate

Sodium Tripolyphosphate STPP

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Food additive / phosphate salt

Food Grade STPP (Sodium Tripolyphosphate) for Emulsifying, Moisture Retention, and Acidity Control

Food-grade sodium tripolyphosphate (STPP) source for buyers checking CAS, formula, spec limits, packing formats, and export document readiness. Suitable for food processing applications where emulsification, moisture retention, and pH control are required, subject to destination-market rules and final COA review.

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Inorganic salt / sodium sulphate anhydrous / industrial grade

Sodium Sulphate Anhydrous CAS 7757-82-6 Industrial Grade

Industrial-grade sodium sulphate anhydrous for overseas buyers requiring CAS/spec verification, Na2SO4 purity confirmation, impurity review, export packing options, and document-ready RFQ support. Candidate listing indicates CAS 7757-82-6, formula Na2SO4, white powder appearance, typical purity 98% to 99%, and 25 kg, 50 kg, 500 kg, or 1000 kg bag packing options. Buyer should confirm final COA values, pH basis, chloride limit, moisture, whiteness, HS code, and destination-specific import requirements before purchase.

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Inorganic phosphate salt / sodium phosphate dibasic

Disodium Phosphate Dodecahydrate DSP for Industrial and Food-Grade Sourcing Checks

Buyer-facing sourcing profile for disodium phosphate DSP, with the listed product centered on sodium phosphate dibasic dodecahydrate CAS 10039-32-4. Suitable RFQs should confirm hydrate form, grade standard, assay basis, impurity limits, packing configuration, document availability, and export logistics before order placement.

RFQ questions before supplier matching

Turn this product into a quote request.

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
  • Can you provide a recent batch COA showing Na5P3O10 assay, P2O5, insolubles, fluoride, arsenic, lead, heavy metals, pH, and appearance?
  • Is the commercial offer for 94% STPP, 90% min STPP, or another assay basis? Please clarify guaranteed specification and acceptance tolerance.
  • What food-grade standard or internal specification does this batch follow, and can you provide supporting declarations?
  • Can you provide SDS/MSDS, TDS, COA, certificate of origin, packing list template, commercial invoice template, and export declaration details?
  • Is the product supplied as powder, granular, or crystal, and what is the particle size or mesh distribution?
  • What is the standard packing construction for 25 kg bags, including inner liner, outer material, moisture protection, and labeling?
  • What is the MOQ, current lead time, monthly capacity, sample policy, and validity period of quotation?
  • Can you quote FOB China port and CIF Vietnam port terms, including estimated container loading quantity?
Checks before quote
  • Request current COA, MSDS/SDS, TDS, food-grade declaration if applicable, and certificate of origin before purchase order
  • Confirm whether the offered batch meets the buyer's intended destination standard for food additive or industrial use; do not rely only on marketplace grade wording
  • CAS, formula, assay, P2O5, insolubles, fluoride, arsenic, lead, and heavy metals should be checked against batch-specific COA
  • Clarify discrepancy between title claim of STPP 94% and specification line showing Na5P3O10 90.0% min
  • Confirm HS code, export declaration name, and any destination import documentation required for Vietnam or other overseas markets
  • Verify whether product is classified as dangerous goods for the planned transport mode with the supplier's SDS and freight forwarder; obtain written DG/non-DG shipping confirmation
  • Food-contact or food-additive use requires buyer-side regulatory review in the destination market; supplier statements should be documented but not treated as regulatory guarantees
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.