Sodium Hydroxide 25% ACS Grade (NaOH)

Name: Sodium Hydroxide 25% ACS Grade
Brand: Alliance Chemical
SKU: YLJ-3SW-2JE
Availability: InStock

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.

Email Bulk Quote Call (512) 365-6838

Technical Documents

SDS TDS COA

Lot-specific COA is issued per shipment batch.

Who Buys This

Water treatment facilities
Chemical manufacturing companies
Industrial cleaning services
Analytical laboratories
Food processing plants

Purity / Grade Guide

ACS Grade for laboratory use
High purity analytical applications
24.5-25.5% assay guaranteed
Meets ACS reagent 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

UN 1824 Class 8 packaging
SDS with every shipment
COA showing purity specs
DANGER signal word labeling

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.

Description
Product Documents
Chemical Profile

Product Overview

Sodium Hydroxide 25% ACS Grade is a high-purity aqueous solution of Sodium Hydroxide (NaOH), also commonly known as Caustic Soda or Lye. This ACS Reagent Grade formulation is manufactured to meet rigorous American Chemical Society specifications, ensuring low impurity levels required for sensitive analytical and industrial applications. Unlike technical grade alternatives, this solution provides a verified assay for consistent performance in titration, pH buffering, and chemical synthesis.

The solution appears as a clear, colorless liquid with a density of approximately 1.2 g/mL at 25°C. It serves as a strong base (pKa ~14.0) capable of effective neutralization and alkalinity control. Industrial users and laboratory professionals rely on this 25% concentration for its stability and ease of dosing in automated systems. Traceability and quality assurance documentation accompany this product to satisfy compliance requirements for manufacturing and research environments.

Key Properties

Chemical Formula: NaOH
Grade: ACS Reagent Grade
Concentration: 25% w/w
Appearance: Clear, colorless liquid
CAS Number: 1310-73-2
Density: ~1.2 g/mL @ 25°C
Molecular Weight: 40.00 g/mol
Solubility: Completely soluble in water
Boiling Point: > 100°C

Common Applications

Laboratory Analysis: Used as a primary standard or titrant in analytical chemistry for acid-base titrations due to its high purity profile.
pH Control: Precise pH adjustment in water treatment and industrial effluent systems where contaminant introduction must be minimized.
Chemical Synthesis: Serves as a reactant in the production of organic compounds, high-purity soaps, and detergents.
Surface Preparation: Utilized in critical cleaning and degreasing operations for metal finishing and electronics manufacturing where residue-free surfaces are required.
Ion Exchange Resin Regeneration: Effective for regenerating anion exchange resins in demineralization plants.

Safety Precautions

Sodium Hydroxide 25% is a corrosive basic solution (Class 8 Corrosive). It causes severe skin burns and eye damage upon contact. Personnel must wear appropriate Personal Protective Equipment (PPE), including chemical-resistant gloves, splash goggles, and face shields. Ensure work areas are well-ventilated.

Store in a cool, dry place in compatible containers (HDPE or mild steel) away from strong acids and reactive metals like aluminum, zinc, and tin. In the event of a spill, contain with inert absorbent material and neutralize carefully according to local regulations. Refer to the Safety Data Sheet (SDS) for detailed handling and emergency procedures.

Benefits

ACS Purity: Minimizes interference in analytical results and catalytic reactions.
Ready-to-Use: Pre-mixed 25% solution eliminates the heat and hazard of dissolving solid pellets.
Versatile Packaging: Available in lab-scale quantities (Quarts/Gallons) up to industrial bulk (Drums/Totes).
Quality Assurance: Manufactured under strict controls to ensure lot-to-lot consistency.

Related Products

Property	Value
Molecular Weight	40 g/mol
Formula	NaOH
Assay	25%
Grade	ACS
Form	Liquid
Solubility	Completely soluble in water, alcohol mixtures
Appearance	Clear, colorless viscous liquid solution
Melting Point	323 °C
Boiling Point	1388 °C
Specific Gravity	1.275
Industry	Industrial, Wastewater

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 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, a boiling point of 1388°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 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, and Wastewater.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:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. 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.