Sodium Hydroxide 25%

Category : Bases

$14.65
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Other Grades & Concentrations

Available in other grades and concentrations:

CAS: 1310-73-2 NaOH
Sodium Hydroxide 30% ACS Grade
From $16.91
CAS: 1310-73-2 NaOH
Sodium Hydroxide 25% ACS Grade
From $21.20
CAS: 1310-73-2 NaOH
Sodium Hydroxide 20% ACS Grade
From $15.92
CAS: 1310-73-2 NaOH
$14.65
Other Grades & Concentrations

Available in other grades and concentrations:

CAS: 1310-73-2 NaOH
Sodium Hydroxide 30% ACS Grade
From $16.91
CAS: 1310-73-2 NaOH
Sodium Hydroxide 25% ACS Grade
From $21.20
CAS: 1310-73-2 NaOH
Sodium Hydroxide 20% ACS Grade
From $15.92
CAS: 1310-73-2 NaOH

Sodium Hydroxide 25%

$14.65

Commercial Fulfillment Snapshot

Buy Sodium Hydroxide 25% with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Technical Documents

Lot-specific COA is issued per shipment batch.

Who Buys This
  • Water treatment facilities
  • Chemical manufacturing plants
  • Soap & detergent manufacturers
  • Industrial cleaning companies
  • Research laboratories
Purity / Grade Guide
  • Industrial & lab applications
  • Verified purity, COA included
  • Suitable for commercial processes
  • 25% concentration aqueous solution
Pack Sizes
  • 1 Quart: lab & small jobs
  • 1 Gallon: shop & maintenance
  • 5 Gallon: production & regular use
  • 15 Gallon: mid-volume operations
  • 55 Gallon: bulk drum
  • 275 Gallon: high-volume tote
  • 330 Gallon: max-volume tote
SDS / COA / TDS
  • UN 1824 Class 8 packaging
  • Safety Data Sheet included
  • Certificate of Analysis provided
  • Hazmat shipping documentation
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Why Sodium Hydroxide 25% Technical Grade

Sodium Hydroxide 25% Technical Grade provides a ready-to-use, clear liquid caustic solution that eliminates the dangerous exothermic reaction risks associated with manually dissolving dry chemical bases in water. As a fundamental workhorse chemical across multiple industrial sectors, it delivers immediate reactivity and high water solubility. By maintaining a stabilized 25% concentration of NaOH, this formulation supplies an optimal balance between active alkalinity and manageable liquid viscosity. This specific dilution level prevents the crystallization issues commonly seen in higher concentrations while ensuring highly consistent flow rates through automated dosing pumps and facility pipeline infrastructure during continuous plant operations. The technical grade specification delivers strong baseline alkalinity for heavy industrial processes, offering substantial operational efficiency and reduced material preparation time for manufacturing facilities that do not require the strict trace-element controls found in analytical laboratory grades.

Best Applications for This Grade

  • Commonly applied in industrial wastewater treatment facilities to systematically neutralize acidic effluent streams, rapidly correct critical pH imbalances, and precipitate heavy metals out of solution prior to secondary processing.
  • Commonly applied in cleaning chemical formulation as the primary alkaline agent to saponify stubborn fats, actively break down heavy industrial oils, and neutralize acidic soils within heavy-duty commercial degreasers.
  • Commonly applied in metal processing and finishing operations to aggressively etch aluminum surfaces, cleanly strip away old anodized coatings, and remove hardened oxide layers from raw metal components before final electroplating.
  • Commonly applied in bulk industrial soap manufacturing to initiate the chemical saponification of fatty acids, where relying on a miscible, pre-dissolved 25% liquid caustic solution significantly reduces mixing cycle times.

When to Choose a Different Grade

  • If your laboratory protocols, quality control testing, or specialized manufacturing processes require strict analytical purity with documented trace impurity guarantees, choose Sodium Hydroxide 25% ACS Grade.
  • If your facility possesses the heated pipeline infrastructure to handle higher viscosity liquids and requires maximum active alkalinity per gallon to increase process efficiency, select Sodium Hydroxide 50% Membrane Grade (Caustic Soda, Lye).
  • If your specific formulation demands a completely dry chemical form factor to allow for exact custom dilution ratios on site or the manufacturing of solid-state alkaline compounds, opt for Sodium Hydroxide Flakes.
  • If your analytical methodology requires a highly concentrated liquid reagent that meets the American Chemical Society's rigorous purity and testing guidelines, select Sodium Hydroxide 50% Solution ACS Grade.
Property Value
Molecular Weight 40.00
Formula NaOH
Assay 24.5-25.5%
Grade Technical
Form Liquid
Solubility Soluble in water
Appearance Clear, colorless to slightly yellow liquid
Melting Point 318
Boiling Point 100
Specific Gravity 1.2
Industry Water Treatment, Industrial, Pharmaceutical, Research, Industrial Cleaning

Frequently Asked Questions About Sodium Hydroxide 25%

What is Sodium Hydroxide 25% and what is its chemical formula?
Sodium Hydroxide 25% is a chemical compound with the molecular formula NaOH, registered under CAS Number 1310-73-2 by the Chemical Abstracts Service (PubChem), with a molecular weight of 40 g/mol g/mol. Alliance Chemical supplies Sodium Hydroxide 25% in Technical grade for laboratory, industrial, and commercial applications.
What are the physical properties of Sodium Hydroxide 25%?
According to the NIOSH Pocket Guide to Chemical Hazards, Sodium Hydroxide 25% is supplied as a clear, pale liquid. It has a melting point of 318°C°C, a boiling point of 1390°C°C, a flash point of N/A. The specific gravity is 1.275 relative to water. Solubility: High water solubility, miscible with polar solvents.
What grade and purity of Sodium Hydroxide 25% does Alliance Chemical offer?
Alliance Chemical offers Sodium Hydroxide 25% in Technical grade with a purity assay of 25%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Sodium Hydroxide 25%?
Sodium Hydroxide 25% serves a wide range of sectors, including Chemical Processing, Industrial & Manufacturing, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Sodium Hydroxide 25%?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Sodium Hydroxide 25%?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:acids, aluminum, zinc. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Sodium Hydroxide 25%?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Neutralize with citric acid or acetic acid (5% solution). (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Sodium Hydroxide 25%?
DOT Classification per 49 CFR 172.101:UN1824, Hazard Class8, Packing GroupII. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Sodium Hydroxide 25% waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Sodium Hydroxide 25%?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Sodium Hydroxide 25%. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.