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Industrial Alkali / Caustic Soda Candidate for Paper, Metallurgy and Water Treatment Sourcing sourcing visualHuman review
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Industrial Alkali / Caustic Soda Candidate for Paper, Metallurgy and Water Treatment Sourcing

Buyer-facing sourcing candidate for an industrial alkali product listed with CAS 1310-73-2 and formula NaOH, while the description also references a compound alkaline flocculating/settling agent containing Ca(OH)2 and mineral-based components. Overseas buyers should verify whether the offered goods are caustic soda pearls/flakes or a blended substitute alkali before RFQ confirmation. Key checks include CAS identity, NaOH assay or active alkalinity, carbonate level, particle size if applicable, grade standard, packing, SDS/COA readiness, and dangerous goods export classification.

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.

Listed CAS No.: 1310-73-2; buyer should confirm if the supplied product is pure sodium hydroxide or a compounded alkali blendIndustrial alkali chemical; possible caustic soda pearls/flakes or compound alkaline settling agentHuman review
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Identity and grade

Typical specifications

  • Listed CAS No.: 1310-73-2; buyer should confirm if the supplied product is pure sodium hydroxide or a compounded alkali blend
  • Listed formula: NaOH; verify against COA, SDS and label before ordering
  • Listed grade: Industrial Grade / First-Class; referenced standard GB/T 209-2018 for caustic soda
  • Listed appearance for caustic soda: white shiny solids; description also mentions fine grey-white sludge-like alkaline material, requiring clarification
  • NaOH assay referenced: pearls ≥99% min; flakes ≥98% min, subject to supplier confirmation
  • Sodium carbonate impurity referenced: Na2CO3 ≤0.5% max for caustic soda pearls, subject to complete specification sheet
  • If supplied as substitute alkali for water treatment, request active alkalinity, Ca(OH)2 content, moisture, insoluble matter, particle size and heavy metal profile
  • Extracted particle-size note for compound soda lime: 125 mesh ≥90%, if this is the actual product offered
  • Quality documents to request: COA by batch, SDS in destination-language format if available, product label, TDS/specification sheet and packing photos
Who uses this page

Target buyers

  • Paper and pulp mills sourcing industrial alkali for process pH control or chemical preparation
  • Metallurgy and mining chemical distributors requiring industrial-grade alkali supply
  • Water treatment chemical formulators and wastewater treatment chemical buyers
  • Industrial chemical importers and regional distributors handling corrosive alkaline products
  • Procurement teams needing China-origin bulk alkali with COA/SDS and export packing
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 transport package: bag
  • Listed specification: 25 kg packaging
  • Extracted note states double-layer packaging intended to keep bags sealed and protected from rain, moisture and damage
  • Packaging images and labels may change; buyer should request current bag photos, palletizing method and shipping marks before order confirmation
  • Confirm whether export packing is suitable for sea freight and whether inner liner, moisture barrier, pallet wrapping and container desiccants are available
  • Confirm net weight per bag, pallet weight, container loading quantity and whether customized neutral/export labels are supported
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 pH adjustment applications subject to buyer validation
  • Paper-making alkali sourcing where sodium hydroxide grade and impurity profile are confirmed
  • Metallurgical process chemical supply where corrosive alkali handling and import requirements are already managed by the buyer
  • Wastewater treatment chemical formulation or alkaline settling aid sourcing, if the product is confirmed as a compound alkali
  • Flue gas or industrial neutralization-related procurement only after technical and regulatory review by the buyer
How we compare

Sourcing options

  • Request quotation for caustic soda pearls 99% min in 25 kg bags
  • Request quotation for caustic soda flakes 98% min in 25 kg bags
  • Request quotation for compound substitute alkali for water treatment with particle-size and active alkalinity specification
  • Request pre-shipment third-party inspection for assay, packing condition and label verification
  • Request trial order or sample subject to DG shipping feasibility and local import rules
Human review

Compliance notes

  • Caustic soda / sodium hydroxide is commonly treated as a corrosive dangerous good for transport; confirm UN number, hazard class, packing group and IMDG/IATA/ADR applicability with supplier documents
  • Do not rely on marketplace title alone; CAS 1310-73-2, NaOH formula and compound alkali description are inconsistent and require document alignment
  • Request current SDS, COA, commercial invoice description, HS code proposal and dangerous goods declaration support before shipment
  • Confirm whether the product is restricted, controlled or requires import permits in the buyer’s destination market
  • For paper, metallurgy and water treatment use, buyer should validate impurity limits relevant to process compatibility, including carbonate, chloride, iron, heavy metals, insolubles and moisture
  • No regulatory approval, customs clearance or end-use suitability should be assumed without buyer-side review and local compliance checks
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.

CAS 1310-73-2sodium hydroxide suppliercaustic soda pearls 99%caustic soda flakes 98%industrial alkali chemicalpaper chemical supplierwater treatment alkalicompound alkali settling agentGB/T 209-2018 caustic soda25 kg bag caustic soda
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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
  • Is the quoted product pure sodium hydroxide caustic soda pearls/flakes, or a compounded substitute alkali/flocculating settling agent?
  • Please confirm exact CAS number, chemical name, formula and whether the CAS appears on the product label and SDS.
  • Can you provide a recent batch COA showing NaOH assay or active alkalinity, Na2CO3, moisture, chloride, iron and insoluble matter?
  • If it is a compound alkali, what are the main components and percentage ranges for Ca(OH)2, activated white mud, diatomite, activated carbon and other alkali content?
  • What particle size specification applies, and is 125 mesh ≥90% part of the confirmed specification?
  • Which grade standard is guaranteed for export supply: GB/T 209-2018 caustic soda or a separate enterprise standard for blended alkali?
  • What is the confirmed packing: 25 kg bags, inner liner type, palletization, container load quantity and moisture protection method?
  • Can you provide SDS, TDS, COA, label artwork, packing photos and DG transport documents before shipment?
Checks before quote
  • Caustic soda / sodium hydroxide is commonly treated as a corrosive dangerous good for transport; confirm UN number, hazard class, packing group and IMDG/IATA/ADR applicability with supplier documents
  • Do not rely on marketplace title alone; CAS 1310-73-2, NaOH formula and compound alkali description are inconsistent and require document alignment
  • Request current SDS, COA, commercial invoice description, HS code proposal and dangerous goods declaration support before shipment
  • Confirm whether the product is restricted, controlled or requires import permits in the buyer’s destination market
  • For paper, metallurgy and water treatment use, buyer should validate impurity limits relevant to process compatibility, including carbonate, chloride, iron, heavy metals, insolubles and moisture
  • No regulatory approval, customs clearance or end-use suitability should be assumed without buyer-side review and local compliance checks
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.