Purity inconsistency. Late shipments. A production line held hostage by a supplier's stock shortage.
If you source sodium hydroxide (NaOH) at scale—whether for textile mercerizing, wastewater neutralization, soap manufacturing, or food-grade processing—you already know how much a single bad delivery can disrupt an entire batch cycle. One consignment of off-spec caustic soda can denature a dye lot, throw pH control out of range, or trigger a non-conformance report that stalls your entire shift.
Loc Thien Chemical has been supplying NaOH in Vietnam since its founding in Ho Chi Minh City. We maintain stock across multiple concentration grades and physical forms — liquid, flakes, and pearls — to match the operational requirements of industrial buyers across Vietnam’s key manufacturing sectors. This guide outlines every grade we carry, explains when to choose liquid versus solid form, covers industry-specific applications, and details our safety documentation and delivery reach.
NaOH Grades Available at Loc Thien
Loc Thien maintains inventory across seven distinct sodium hydroxide product lines, covering liquid concentrations ranging from 20% to 50% and solid grades with a purity of 99% in both flake and pearl forms.
Liquid Caustic Soda
| Grade | Concentration | Product ID | Typical Use |
|---|---|---|---|
| Liquid NaOH 20% | 20% w/w | ID 571 | Cleaning, mild pH adjustment, dilution-ready |
| Liquid NaOH 32–33% | 32–33% w/w | ID 717 | Household wastewater treatment |
| Liquid NaOH 45% | 45% w/w | ID 825 | Industrial neutralization, soap base |
| Liquid NaOH 48% | 48% w/w | ID 4490 | Textile mercerizing, pulp & paper |
| Liquid NaOH 50% | 50% w/w | ID 1345 | High-demand industrial alkaline processes |
Note: Liquid NaOH concentrations above 40% may begin to crystallize at temperatures below 12–15°C. Storage in insulated or temperature-controlled tanks is recommended for the 48% and 50% grades during cooler seasons.
Solid Caustic Soda
| Grade | Form | Origin | Product ID |
|---|---|---|---|
| NaOH 99% Pearl/Granule | Pearl | Taiwan | ID 746 |
| NaOH 99% Flake | Vảy | China | ID 724 |
Both solid grades are safe for food contact (subject to end-use compliance), with a purity of ≥99% NaOH, low iron content (<10 ppm), and moisture content <0.5%. Typically packaged in 25 kg woven poly bags or 1,000 kg super-sacks (FIBC) upon request.
Liquid vs. Solid Caustic Soda: Which Form Suits Your Process?
Choosing between liquid and solid NaOH is not simply a cost question—it is a process compatibility question. Here is a practical breakdown:
Choose Liquid NaOH (20%–50%) When:
- You require continuous dosing. Liquid feeds directly into dosing pumps and in-line injection systems without a dissolving step. This eliminates a preparation stage and reduces labor costs.
- Your volume is loud. Bulk liquid delivery in tank trucks (10–25 MT per load) reduces per-unit cost compared to solid forms at the same scale.
- The speed of a reaction is important. Liquid NaOH dissolves instantly and achieves full ionic activity immediately—critical for pH control loops in wastewater treatment or reactive dyeing.
- You have tank storage infrastructure. Polyethylene, rubber-lined, or stainless-steel tanks are standard. Ensure vent caps and overfill protection are in place.
Choose Solid NaOH (99% Flake or Pearl) When:
- Concentration flexibility is required. Solid NaOH lets you dissolve to any target concentration on-site — useful for labs, small-batch soap manufacturers, and R&D operations.
- Long-term storage is required. Solid NaOH in sealed bags has a longer effective shelf life than pre-diluted liquid grades, which can absorb CO₂ from the air over time.
- Transport logistics favor dry goods. Solid NaOH avoids corrosive liquid transport regulations in some logistics corridors and is easier to ship to remote or inland sites.
- You need food-grade or pharmaceutical-grade purity. The 99% solid grades from Taiwan come with more stringent quality control certificates than bulk liquid supplies.
Rule of thumb If your operation consumes more than 5 MT/month and you have tank infrastructure, liquid NaOH at 48–50% is almost always more economical. Below that threshold, or for multi-site operations without fixed storage, solid NaOH offers greater operational flexibility.
Industry Applications in Vietnam
Sodium hydroxide is one of the most widely used industrial chemicals in Vietnam. Loc Thien supplies NaOH into six major sectors:
Textile & Dyeing — Mercerizing
NaOH at a concentration of 18–25% (diluted from our 45–50% liquid stock) is used in the mercerization of cotton fabrics. The alkaline bath swells the cotton fibers, improving luster, tensile strength, and dye uptake uniformity. Vietnam’s textile export industry—centered in Binh Duong, Dong Nai, and Ho Chi Minh City—consumes thousands of metric tons of NaOH annually for this process.
2. Water Treatment & Wastewater Neutralization
NaOH is the primary pH-raising agent in industrial wastewater treatment. Facilities discharging in accordance with QCVN 40:2011/BTNMT must maintain effluent pH within the range of 5.5–9.0; a 10–15% NaOH solution is typically dosed to neutralize acidic wastewater from metal finishing, food processing, and chemical manufacturing operations.
3. Soap & Detergent Manufacturing
NaOH is the saponification agent used in the production of hard soap. When NaOH reacts with fats or oils (such as palm oil, coconut oil, or tallow), it produces soap and glycerin. Our 99% flake grade is preferred by artisan and mid-scale soap manufacturers who require precise stoichiometric control.
4. Pulp & Paper (Paper)
The kraft pulping process uses NaOH (combined with sodium sulfide as “white liquor”) to dissolve lignin from wood chips, liberating cellulose fibers. NaOH is also used in paper recycling — de-inking and fiber recovery — for Vietnam’s growing domestic paper industry.
5. Food Processing
Food-grade NaOH (99% purity, low heavy metals) is used in olive curing, pretzel and bagel browning (lye bath), noodle processing, and cocoa alkalization. The 99% pearl grade from Taiwan (ID 746) meets food-contact requirements when used in accordance with applicable Vietnamese food safety regulations (QCVN).
6. Electroplating & Metal Finishing
Alkaline electroplating baths for zinc, copper, and nickel plating use NaOH as the primary electrolyte base. Sodium hydroxide also serves as a metal degreaser and surface preparation agent prior to plating. Concentration requirements range from 30–50%, depending on the bath chemistry.
Safety & Handling — MSDS and Regulatory Compliance
strong base corrosive substance under GHS (Globally Harmonized System of Classification and Labelling of Chemicals) — GHS Category 1 for skin corrosion, serious eye damage, and respiratory irritation upon inhalation of dust or mist.
Key safety data for NaOH (CAS: 1310-73-2):
| Property | Worth |
|---|---|
| CAS Number | 1310-73-2 |
| UN Number | UN 1824 (solution) / UN 1823 (solid) |
| GHS Hazard Class | Corrosive (Category 1) |
| pH (1% solution) | ~13 |
| Flash Point | Non-flammable |
| Reactive Hazard | Reacts violently with acids; generates heat with water |
| Storage Temperature | 15–25°C (liquid grade); dry, sealed for solid grade |
MSDS/SDS availability: Loc Thien provides Material Safety Data Sheets (MSDS) for all NaOH grades upon request, in English and Vietnamese. Documentation includes: hazard identification, first-aid measures, firefighting measures, spill response procedures, PPE requirements, and disposal guidance.
Required PPE for handling NaOH:
- Face shield or chemical splash goggles
- Nitrile or neoprene chemical-resistant gloves (≥0.4 mm)
- PVC or rubber apron
- Closed-toe chemical-resistant footwear
- For concentrated grades (>40%): full-face respirator with acid/alkali cartridge
Emergency first aid — skin/eye contact: Immediately flush with large amounts of water for minimum 15–20 minutes. Remove contaminated clothing. Seek medical attention promptly. Do not neutralize burns with acid.
Why Loc Thien for NaOH Supply in Vietnam?
1. Multi-grade inventory ready to ship. We maintain stock of all 7 NaOH grades simultaneously. You are not waiting for a special order — the concentration you need is available when your production schedule demands it.
2. Flexible volume and packaging. Minimum order quantities start at drum/IBC scale for smaller operations. Bulk liquid delivery by tanker truck is available for high-volume customers (≥10 MT). Solid grades are available in 25 kg bags or FIBC super-sacks.
3. Complete documentation. Every shipment is accompanied by a Certificate of Quality (CO/CQ), packing list, and delivery note. MSDS is available in both English and Vietnamese. We can provide batch-specific analysis reports on request.
4. HCMC-based, nationwide logistics capability. Our warehouse is located in Binh Tan District, Ho Chi Minh City — a strategically central location for serving HCMC’s industrial zones (Tan Binh, Binh Duong, Dong Nai, Long An, and beyond). We work with trusted freight partners for delivery across Vietnam.
5. Responsive procurement support. Industrial chemical procurement rarely operates on a 9-to-5 schedule. Our team responds to quotation requests promptly via phone, email, and direct inquiry — with clear lead time commitments and no hidden surcharges.
Delivery Coverage
Loc Thien Chemical is headquartered at:
452/6B Tỉnh Lộ 10, P. Bình Trị Đông, Q. Bình Tân, TP. HCM (Ho Chi Minh City)
Primary service zones (same-day or next-day delivery):
- Ho Chi Minh City (all districts)
- Binh Duong Province (Thu Dau Mot, Di An, Thuan An industrial zones)
- Dong Nai Province (Bien Hoa, Long Thanh, Nhon Trach)
- Long An Province (Duc Hoa, Ben Luc industrial parks)
Nationwide delivery available: Ba Ria-Vung Tau, Tay Ninh, Binh Phuoc, Tien Giang, Can Tho, and other provinces via road freight. Schedule and freight cost confirmed at time of order based on volume and destination.
Frequently Asked Questions
Ready to Source Caustic Soda NaOH in Vietnam?
Contact Loc Thien Chemical today for a fast quotation. We will confirm available stock, delivery lead time to your facility, and volume pricing — typically within one business day.
📞 Phone / Zalo: +84 979 891 929
📧 Email: locthien@locthien.vn
🏭 Warehouse: 452/6B Tỉnh Lộ 10, P. Bình Trị Đông, Q. Bình Tân, TP.HCM
🌐 Website hoachatlocthien.com
Request a Quote → Specify your required grade (liquid % or solid form), volume (kg/MT/month), and delivery location. We will respond promptly.