Sodium hydroxide liquid 50%

Description

1. Product Overview
Sodium hydroxide liquid 50% (Caustic Soda 50%) is a high-concentration, aqueous solution of NaOH, essential for pH adjustment, chemical intermediate production, and process cleaning across heavy industries. Its primary industrial use lies in alumina refining, pulp & paper manufacturing, soap & detergent production, and water treatment. The key value proposition is a ready-to-use liquid form that eliminates dissolution time and energy costs while delivering consistent molar strength batch-to-batch. Strategically, it remains irreplaceable in global supply chains for commodity chemical production, petroleum refining, and textile processing—where operational continuity depends on reliable caustic soda sourcing.

2. Key Specifications & Technical Characteristics
Chemical composition: Sodium hydroxide (NaOH) 50% ±1%, balance deionized water

Purity level: Technical grade, meets ISO 5992 / ASTM D456-91 standards; max impurities: NaCl 0.2%, Na₂CO₃ 1.0%, Fe ≤10 ppm

Physical characteristics: Clear to slightly hazy viscous liquid; colorless; density ~1.525 g/cm³ at 20°C; freezing point +12°C

Packaging options: Bulk ISO tank containers (20–25 MT); IBC totes (1,000 L); HDPE drums (200 L)

Shelf life: 12 months in original sealed container between +15°C and +40°C; avoid CO₂ absorption

3. Core Industrial Applications
Alumina refining (Bayer process): Used to digest bauxite ore into sodium aluminate — the liquid 50% form reduces steam consumption and crystallization risks compared to solid flake.

Pulp & paper (kraft pulping): Combined with sodium sulfide to break lignin bonds; liquid delivery eliminates dust hazards and allows inline ratio control, boosting yield by 3–5%.

Petroleum refining (sweetening & desalting): Neutralizes acidic chlorides and mercaptans; outperforms solid forms due to instant mixing with crude oil wash water.

Water & wastewater treatment: pH correction prior to discharge; liquid 50% lowers chemical handling injuries and reduces storage footprint versus diluted solutions.

4. Competitive Advantages
Quality consistency: In-line density meters and titration checks every batch; ≤1.5% concentration variance ensures predictable reaction kinetics.

Supply reliability: Multiple production hubs (USGC, China, Middle East) with dedicated ISO tank fleets; 24/7 order tracking and emergency replenishment option.

Logistics capability: Heated tanker fleet for winter delivery (prevents crystallization); demurrage risk mitigated by pre-scheduled port-to-plant windows.

Cost competitiveness: Contract pricing indexed to global caustic soda benchmarks (ICIS, Argus) with quarterly adjustment caps; no hidden demurrage or cleaning fees.

Sustainability & support: 98% recyclable packaging program; free on-site safety training and SDS digital library; ISO 45001-certified handling protocols.

5. Commercial & Supply Information
Minimum order quantity (MOQ): 20 MT (bulk liquid)

Loading capacity: 24 MT per standard 20 ft ISO tank container (net weight)