Sodium Hydroxide Flakes / Caustic Soda Flakes CAS 1310-73-2, 98–99% Industrial Grade
Buyer-facing sourcing profile for sodium hydroxide flakes, CAS 1310-73-2, offered mainly as 98% and 99% NaOH industrial grade, with food-grade supply mentioned only by special request. Key checks for RFQ include confirmed assay, moisture, sodium carbonate and chloride limits, batch COA alignment, moisture-resistant export packing, and dangerous goods documentation for corrosive solid shipment.
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.: 1310-73-2Inorganic alkali / caustic soda flakesHuman review
Common names: Caustic soda flakes, NaOH flakes, sodium hydroxide solid
Purity options stated: 98% and 99% NaOH; page also references 96%, 98%, 99% customization
Grade: Mainly industrial grade; food-grade option stated as available only upon special request
Physical form: Flakes; page also references pearls and solid blocks as possible forms
Storage condition stated by supplier: sealed, moisture-proof, waterproof
Standards/documents referenced: ISO, SGS, REACH mentioned on source page; buyer should verify current applicability and scope per shipment
Transport reference stated: UN 1823 for sodium hydroxide, solid
Who uses this page
Target buyers
Industrial chemical distributors
Soap and detergent raw material buyers
Textile processing chemical procurement teams
Paper and pulp chemical buyers
Petroleum refining and process chemical purchasers
Water treatment chemical distributors, subject to local approvals
General industrial manufacturers requiring verified caustic alkali feedstock
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 export packing stated: 25 kg PP woven bags with PE inner liner
Moisture-proof packing is a key acceptance point because sodium hydroxide is hygroscopic and quality can be affected by moisture and carbonate formation
Source page also references plastic drums / woven bags; buyer should confirm exact packing type, liner thickness, palletization, and container loading plan
OEM packaging customization, printed bags, labels, and palletizing are stated as available for bulk orders
For export RFQ, request photos of actual bag marks, UN marks if applicable, pallet wrapping, and batch/lot label format 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
Industrial formulation and pH adjustment applications where sodium hydroxide flakes are specified by CAS and assay
Soap and detergent manufacturing supply chains requiring 98–99% caustic soda flakes
Textile bleaching and dyeing chemical procurement where industrial-grade NaOH is acceptable
Paper and pulp processing procurement requiring bulk caustic alkali
Chemical manufacturing or processing applications requiring documented NaOH assay and impurity limits
Petroleum refining and industrial cleaning product supply chains, subject to buyer’s internal approval and local regulations
How we compare
Sourcing options
98% industrial-grade sodium hydroxide flakes in 25 kg moisture-resistant PP/PE bags
99% industrial-grade sodium hydroxide flakes in 25 kg moisture-resistant PP/PE bags
Customized export packing, printed bags, labels, and palletization for bulk orders
Third-party inspection or SGS report by buyer request before shipment
Food-grade sodium hydroxide inquiry route, subject to separate grade confirmation, documentation, and compliance review
Human review
Compliance notes
This product is a corrosive dangerous good; source page references transport according to UN 1823, Sodium hydroxide, solid
Request current SDS/MSDS, COA, TDS, Certificate of Origin, and any third-party inspection report before purchase confirmation
Verify DG classification, packing group, label, marks, and shipping name with the forwarder and destination-country requirements before booking cargo
Do not rely on general platform claims for customs clearance; confirm document set, HS code, destination import rules, and consignee eligibility with local compliance parties
If food-grade NaOH is requested, require food-grade specification, applicable declarations, traceability, and destination-market documentation separately from industrial-grade supply
REACH, SGS, ISO, or similar claims should be checked for certificate validity, issuing body, date, scope, and whether they apply to the offered batch or only to the supplier/company
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.
caustic soda flakes supplier Chinasodium hydroxide flakes CAS 1310-73-2NaOH flakes 99%caustic soda solid UN 1823industrial grade sodium hydroxide25 kg caustic soda flakes bagssodium hydroxide export suppliercaustic soda flakes COA SDS
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.
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
Please confirm the exact grade offered for this RFQ: 98% industrial grade, 99% industrial grade, or food-grade sodium hydroxide?
Please provide a recent COA showing NaOH assay, Na2CO3, NaCl, Fe, heavy metals if applicable, insoluble matter, and moisture/water content.
Is the quoted material flakes only, or can pearls/solid blocks be supplied under the same CAS and specification?
Please confirm CAS 1310-73-2, UN 1823, proper shipping name, packing group, and DG packing method for export shipment.
What is the standard 25 kg bag construction: outer PP woven bag, inner PE liner, liner thickness, net/gross weight, and sealing method?
Can you provide pre-shipment photos of bags, palletizing, container loading, and batch labels?
What documents are included with shipment: COA, SDS/MSDS, TDS, Certificate of Origin, commercial invoice, packing list, DG declaration, and SGS/third-party inspection if ordered?
What are the limits for moisture absorption and sodium carbonate increase between production, warehousing, and loading?
Checks before quote
This product is a corrosive dangerous good; source page references transport according to UN 1823, Sodium hydroxide, solid
Request current SDS/MSDS, COA, TDS, Certificate of Origin, and any third-party inspection report before purchase confirmation
Verify DG classification, packing group, label, marks, and shipping name with the forwarder and destination-country requirements before booking cargo
Do not rely on general platform claims for customs clearance; confirm document set, HS code, destination import rules, and consignee eligibility with local compliance parties
If food-grade NaOH is requested, require food-grade specification, applicable declarations, traceability, and destination-market documentation separately from industrial-grade supply
REACH, SGS, ISO, or similar claims should be checked for certificate validity, issuing body, date, scope, and whether they apply to the offered batch or only to the supplier/company
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.
