Sodium Hydroxide 25% ACS Grade

Category : Bases

$21.20
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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 20% ACS Grade
From $15.92
CAS: 1310-73-2 NaOH
Sodium Hydroxide 15% ACS Grade
From $15.42
CAS: 1310-73-2 NaOH
$21.20
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 20% ACS Grade
From $15.92
CAS: 1310-73-2 NaOH
Sodium Hydroxide 15% ACS Grade
From $15.42
CAS: 1310-73-2 NaOH

Sodium Hydroxide 25% ACS Grade

$21.20

Commercial Fulfillment Snapshot

Buy Sodium Hydroxide 25% ACS Grade 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
  • Analytical chemistry laboratories
  • Pharmaceutical QA/QC departments
  • Research institutions
  • Chemical synthesis facilities
  • Water treatment labs
Purity / Grade Guide
  • ACS Grade high purity reagent
  • Laboratory & analytical applications
  • 25% solution ready to use
  • Meets ACS specifications
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
  • SDS included with shipment
  • COA verifies ACS specifications
  • UN 1824 Class 8 packaging
  • DOT compliant hazmat shipping
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% ACS Grade

Sodium Hydroxide 25% ACS Grade provides chemical formulators, metal processors, and water treatment operators with a clear, colorless viscous liquid solution that meets the exacting specifications of the American Chemical Society. This specific 25% concentration eliminates the intense exothermic heat generation associated with dissolving dry sodium hydroxide forms, directly reducing preparation steps and formulation time in industrial facilities. Because it carries the strict ACS Reagent Grade designation, this liquid guarantees extremely low levels of trace heavy metals, chlorides, and iron impurities. This verified purity makes it the mandatory standard for highly sensitive chemical manufacturing and stringent industrial wastewater protocols where standard industrial grades would introduce unacceptable contamination into the process stream. Furthermore, its completely soluble nature in water and alcohol mixtures ensures uniform reactions without the risk of precipitation.

Best Applications for This Grade

  • Analytical testing and laboratory environments: Commonly applied in titrations, precise pH control, and analytical methodologies where ACS purity guarantees trace contaminants will not interfere with sensitive instrumentation or readings.
  • Critical industrial wastewater treatment: Commonly applied in strict acid neutralization and heavy metal precipitation phases where environmental discharge compliance requires strict control over added chemical impurities.
  • Chemical manufacturing and synthesis: Acts as a reliable, completely soluble base reactant for formulating complex chemical mixtures, ensuring exact stoichiometry without the introduction of unwanted chemical byproducts.
  • Specialty metal processing and surface finishing: Commonly applied in delicate metal etching, oxide removal, and cleaning processes that require precise caustic strength and reagent-level purity to prevent microscopic surface defects.
  • Specialty cleaning chemical formulation: Commonly applied in the creation of rigorous industrial detergents where standard commercial bases might introduce minerals that degrade final product stability.

When to Choose a Different Grade

  • If daily operations require routine bulk pH adjustment or basic saponification without the strict trace-metal limits of an analytical reagent, choose Sodium Hydroxide 25%.
  • If facilities require a more concentrated liquid format to reduce storage footprint and handle higher-volume dosing demands while maintaining identical analytical purity, choose Sodium Hydroxide 50% Solution ACS Grade.
  • If operators prefer to perform custom dilutions on-site to exact custom percentages, or require a dry material to accommodate water-sensitive formulation limits, choose Sodium Hydroxide Flakes ACS Grade.
  • If the primary operational goal is heavy industrial manufacturing or standard large-scale water treatment requiring a highly concentrated 50% liquid base, choose Sodium Hydroxide 50% Membrane Grade (Caustic Soda, Lye).
  • If operations require a dry format to control dilution but only demand standard industrial purity rather than stringent analytical specifications, choose Sodium Hydroxide Flakes.
Property Value
Molecular Weight 40.00
Formula NaOH
Assay 24.5-25.5%
Grade ACS Grade
Form Liquid
Solubility Soluble in water
Appearance Clear, colorless to slightly yellow liquid
Melting Point -15
Boiling Point 1388
Specific Gravity 1.2
Industry Water Treatment, Chemical Manufacturing, Industrial Cleaning, Analytical Chemistry, Food Industry

Frequently Asked Questions About Sodium Hydroxide 25% ACS Grade

What is Sodium Hydroxide 25% ACS Grade and what is its chemical formula?
Sodium Hydroxide 25% ACS Grade 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. Alliance Chemical supplies Sodium Hydroxide 25% ACS Grade in ACS Reagent grade for laboratory, industrial, and commercial applications.
What are the physical properties of Sodium Hydroxide 25% ACS Grade?
According to the NIOSH Pocket Guide to Chemical Hazards, Sodium Hydroxide 25% ACS Grade is supplied as a clear, colorless viscous liquid solution. It has a melting point of 323°C (613.4°F)°C, a boiling point of 1388°C (2530.4°F)°C. The specific gravity is 1.275 relative to water. Solubility: Completely soluble in water, alcohol mixtures.
What grade and purity of Sodium Hydroxide 25% ACS Grade does Alliance Chemical offer?
Alliance Chemical offers Sodium Hydroxide 25% ACS Grade in ACS Reagent 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% ACS Grade?
Sodium Hydroxide 25% ACS Grade serves a wide range of sectors, including 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% ACS Grade?
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. 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% ACS Grade?
Store perOSHA 29 CFR 1910.1450: Dedicated corrosives cabinet with secondary containment (110% volume per EPA 40 CFR 264.175). 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% ACS Grade?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 50 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% ACS Grade?
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% ACS Grade 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% ACS Grade?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Sodium Hydroxide 25% ACS Grade. 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.