Caustic Soda Flakes 99% (Solid Sodium Hydroxide) – 25kg Moisture-Proof Bag Bulk & Exothermic Dissolution Safety Guide
Industrial Caustic Soda Flakes 99% (Solid Sodium Hydroxide, NaOH, CAS 1310-73-2, MW 40.00 g/mol, TÜV SÜD ZDHC MRSL v3.1 Level 1 Certified) in 25kg bags. Full COA/SDS, ready stock across 6 Vietnam warehouses, 15-min quote: 0979 891 929.
Caustic Soda Flakes 99% (Solid Sodium Hydroxide Flakes, NaOH 99%) (CAS 1310-73-2, MW 40.00 g/mol) is a high-purity solid white crystalline flake chemical supplied by Loc Thien Chemical as a Industrial Chemical Bulk Supplier to manufacturing facilities throughout Vietnam. With active sodium hydroxide purity exceeding 99.0%, it represents the most concentrated form of caustic soda, ideal for long-distance storage and international logistics. Packaged in heavy-duty 25kg woven polypropylene bags with double moisture-barrier polyethylene liners, it is palletized in 1.0–1.2 ton lots. [Crucial Notice] As a solid bagged product, road tanker delivery is strictly inapplicable; shipments are dispatched via 5–15-ton covered trucks and closed container chassis. Loc Thien Chemical guarantees a prompt 15-minute quotation response.
Loc Thien Chemical imports premium solid caustic soda directly from premier global chlor-alkali complexes in Xinjiang and Inner Mongolia, maintaining extensive reserve inventories across 6 nationwide warehouses in Vietnam. Lot-specific COAs, TDS, and bilingual SDS/MSDS are provided with every order.
Caustic Soda Flakes 99% Technical Specifications
Loc Thien's solid caustic soda flakes 99% meet the rigorous requirements of national standard GB/T 209-2018 (Grade I) and international standards ASTM E291 and KS M 1106.
| Parameter | Technical Specification | Test Method |
|---|---|---|
| Chemical Name | Solid Sodium Hydroxide Flakes 99% | IUPAC / CAS Nomenclature |
| Chemical Formula & MW | NaOH (40.00 g/mol) | Structural Chemistry |
| CAS Registry Number | 1310-73-2 | CAS Registry |
| UN Number & Hazard Class | UN 1823, Class 8 Corrosive Solid, Packing Group II | DOT / IMDG Regulations |
| NaOH Purity | ≥ 99.0% | Acid-Base Titration |
| Appearance | White translucent deliquescent crystalline flakes | Visual Inspection |
| Sodium Carbonate (Na₂CO₃) | ≤ 0.50% | Volumetric Analysis |
| Sodium Chloride (NaCl) | ≤ 0.03% | Silver Nitrate Potentiometry |
| Iron Oxide (Fe₂O₃) | ≤ 0.005% (50 ppm max) | Spectrophotometry |
| Melting Point | 318°C | Phase Transition |
| Boiling Point | 1,390°C | Phase Transition |
| Packaging & Dispatch Units | 25kg PP bags with 2-layer PE inner liner (1.0–1.2T Pallets) | Moisture-proof shrink wrap |
Exothermic Dissolution Chemistry and Operator Safety Protocols
1. High Heat of Dissolution Reaction
Solid caustic soda releases an immense quantity of thermal energy when dissolved in water:
🛑 Mandatory EHS Operational Rule: Dissolution Sequence
Always add caustic soda flakes slowly to cold water while maintaining vigorous mechanical stirring. NEVER add water to solid caustic soda flakes! Adding water to solid caustic causes localized boiling and violent steam eruption, throwing concentrated 100°C boiling caustic solution into the operator's face and body, causing severe third-degree chemical burns and permanent blindness.
2. Industrial Applications
Extensively utilized in chemical compounding, industrial soap saponification, aluminum anodizing and etching, biodiesel transesterification, and high-efficiency wastewater treatment batch systems.
⚡ Request Palletized Bulk Pricing (15-Minute Turnaround)
Contact Loc Thien Chemical for immediate dispatch schedules and spot quotes on 25kg bagged Caustic Soda Flakes 99%.
- Direct Line: 0979 891 929
- Corporate Email: [email protected]
- Instant Messaging: WeChat:
locthien_chemical| KakaoTalk B2B
ZDHC MRSL Version 3.1 Conformance Level 1 — Sodium Hydroxide (NaOH — Caustic Soda)
- Official Documentation: Certificate of Conformance — ZDHC MRSL Version 3.1 Level 1 (PPP 25089F:2023)
- Issuing Body: TÜV SÜD Product Service GmbH (Munich, Germany) / TÜV SÜD Vietnam
- Certificate / Report Holder: LOC THIEN INVESTMENT DEVELOPMENT COMPANY LIMITED
- Certificate / CSR No.:
ZDHC1 127736 0001 Rev. 00| Analytical Test Report No.:2486017672-Q24VPS-CHM2869 - Analytical Results: 4/4 substance groups PASS: Alkylphenol (AP) & Alkylphenol Ethoxylates (APEOs); Borate, zinc salt; Perboric acid, sodium salt; Total Heavy Metals
Loc Thien 9-Product ZDHC MRSL v3.1 Level 1 Portfolio: Includes 4 TÜV SÜD Level 1 Certificates (ZDHC1 127736 0001–0004: NaOH, H₂O₂, Na₂SO₄, Na₂CO₃) and 5 TÜV Rheinland Level 1 CSR & Analytical Test Reports (248162921-01–05: H₂SO₄, FeCl₂, HCl, Javel/NaOCl, PAC 31%). FDI textile and footwear manufacturers requiring official PDF dossiers with batch COA/SDS for ZDHC Gateway audits may request documentation here (15-minute response SLA).
