Liquid Caustic Soda 50% (Sodium Hydroxide 50% Bulk) – 5–30 Ton Insulated Tankers & Freezing Protection Engineering Guide
Loc Thien Chemical is a Industrial Chemical Bulk Supplier of Liquid Caustic Soda 50% (NaOH, CAS 1310-73-2) in Vietnam. Maximize freight savings by 36%. Expert engineering guide for +12°C to +15°C crystallization and electric heat tracing. Dedicated 5–30-ton tankers. Hotline: +84 979 891 929.
High Concentration Liquid Caustic Soda 50% (Sodium Hydroxide Solution 50%) (CAS 1310-73-2, MW 40.00 g/mol) is a premium industrial alkaline chemical supplied by Loc Thien Chemical as a Industrial Chemical Bulk Supplier to large-scale chemical producers, pulp mills, and multinational FDI plants in Vietnam. Exhibiting a high density of 1.520–1.530 g/cm³ and a Baumé degree of ~50.0°Bé, each ton of NaOH 50% delivers the active alkaline equivalent of 1.56 tons of 32% solution, cutting freight logistics costs and storage footprint by up to 36%. Loc Thien operates specialized 5–30-ton chemical road tankers and provides rapid 15-minute quotation turnarounds.
⚠️ Crucial Engineering Advisory for FDI Plant Managers: High Crystallization Point
Liquid Caustic Soda 50% possesses a high freezing point of +12°C to +15°C (54°F to 59°F). In regions experiencing ambient temperatures below 15°C (such as Northern Vietnam winter months or night shifts), solid hydrate crystals precipitate, clogging piping, valves, and centrifugal pumps. Loc Thien Chemical advises industrial clients to install thermal insulation and electric heat tracing (maintaining 20°C–25°C) on outdoor storage tanks and transfer lines, or alternatively to dilute the delivery to 32% upon offloading to depress the freezing point to -4°C.
Liquid Caustic Soda 50% Specifications
Loc Thien's industrial liquid caustic soda 50% meets and exceeds Vietnamese standard TCCS 04:2020/LT and international standard ASTM E291.
| Parameter | Technical Specification | Test Method |
|---|---|---|
| Chemical Name | High Concentration Sodium Hydroxide 50% | 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 1824, Class 8 Corrosive Liquid, Packing Group II | DOT / IMDG Rules |
| NaOH Active Content | 50.0% ± 1.0% | Acid-Base Titration |
| Appearance | Clear to slightly turbid viscous liquid | Visual Inspection |
| Density (at 20°C) | 1.520 – 1.530 g/cm³ | Hydrometer / ASTM D1298 |
| Specific Gravity / Baumé | 49.5° – 50.5° Bé | Baumé Hydrometry |
| Viscosity (at 20°C) | 50 – 70 cP (mPa·s) | Rotational Viscometer |
| Crystallization Point | +12°C to +15°C (Requires heating/insulation) | Thermal Phase Analysis |
| Sodium Carbonate (Na₂CO₃) | ≤ 0.30% | Volumetric Analysis |
| Sodium Chloride (NaCl) | ≤ 0.02% | Potentiometric Titration |
| Delivery Units | 250kg Drums, 1,000L IBCs, 5–30-ton Dedicated Tankers | Alkali-Resistant Insulated Units |
Key Industrial Advantages and Economic Viability
1. Substantial Freight and Storage Footprint Savings
For high-volume consumers, utilizing 50% solution significantly reduces freight transport costs. Transporting pure chemical value in 50% concentration requires roughly one-third fewer truck trips compared to lower concentration grades, lowering logistics emissions and operational overhead.
2. Kraft Pulping and Chemical Synthesis Intermediates
Widely utilized in the pulp and paper industry for cooking wood chips to dissolve lignin under high temperature and pressure, as well as serving as a base raw material for manufacturing alumina, sodium hypochlorite, and specialized polymers.
⚡ Request Bulk Tanker Pricing & Engineering Support
Contact Loc Thien Chemical for prompt pricing, tanker dispatch schedules, and technical consultation on bulk caustic storage systems.
- Technical Hotline: 0979 891 929
- Corporate Email: [email protected]
- Messaging Channels: 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).
