Chemical laboratory

Sodium Hydroxide

High-Strength Alkaline Solution for Industrial Applications

  • CAS 1310-73-2
  • Formula NaOH (25% solution in H₂O)
  • Flash Pt N/A °C
  • Density 1.271 g/cm³
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Physical & Chemical Properties

Property Value Unit
Boiling point 105°C °C
Flash point N/A °C
Density 1.271 g/cm³ g/cm³
Solubility Miscible with water -
Ph > 12 -
Molecular weight 40.00 g/mol g/mol
Melting point N/A °C
Vapor pressure N/A mmHg
Autoignition temp N/A -
Appearance Clear, colorless liquid -
Odor Odorless -
Vapor density N/A g/cm³

Overview

Sodium Hydroxide (NaOH) is a highly caustic and versatile chemical compound supplied as a 25% aqueous solution. This clear, colorless liquid solution offers the strong alkaline properties of pure sodium hydroxide in a ready-to-use format that eliminates the handling challenges associated with solid caustic soda. With a pH greater than 12 and excellent water miscibility, this industrial-grade solution serves as an essential chemical for numerous manufacturing processes, water treatment applications, and laboratory operations.

Key Applications

Our sodium hydroxide solution excels in pH adjustment and neutralization processes across industrial operations, providing precise alkalinity control for water treatment systems, chemical manufacturing, and waste processing. In chemical synthesis, it serves as a critical reagent for producing soaps, detergents, and various organic compounds, while its strong alkaline properties make it highly effective for cleaning and degreasing applications in manufacturing facilities. The solution also plays a vital role in pulp and paper processing, where it helps break down lignin and facilitates the production of high-quality paper products.

Safety & Handling

As a highly caustic solution with no flash point, sodium hydroxide presents minimal fire hazards but requires careful handling due to its corrosive nature. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing when handling this material. Ensure adequate ventilation in work areas and have emergency eyewash stations readily available. The solution can cause severe burns upon contact with skin or eyes, making proper safety protocols essential for all handling operations.

Storage & Shelf Life

Store sodium hydroxide solution in compatible containers such as polyethylene or stainless steel vessels, away from aluminum, zinc, and other reactive metals. Maintain storage temperatures between 32°F and 100°F to prevent crystallization or excessive evaporation. Keep containers tightly sealed and store in a cool, dry area away from acids, organic materials, and flammable substances. The solution has an indefinite shelf life when stored properly and protected from contamination.

Why Alliance Chemical

Alliance Chemical delivers reliable Sodium Hydroxide solutions with same-day shipping from our Taylor, Texas facility. We offer flexible delivery options including UPS for smaller quantities and LTL/FTL freight for bulk orders, ensuring you receive your chemicals when you need them. Every shipment includes comprehensive Safety Data Sheets (SDS) and Certificates of Analysis (COA) for complete transparency and regulatory compliance.

Shipping & Availability

Parcel Shipping

UPS Ground supports pints, quarts, and most 1-gallon packages nationwide.

LTL Freight

5-gallon pails, drums, and totes move via LTL carriers such as ABF Freight, SEFL, Saia, and XPO.

Full Truckload

FTL available for palletized bulk orders. Competitive freight rates.

Local Pickup

Same-day pickup at our Taylor, TX warehouse for Texas customers.

SDS, COA, and TDS available for every product • Same-day shipping on orders before 1 PM CT

Frequently Asked Questions

What is sodium hydroxide (NaOH) and what is it used for?
Sodium hydroxide (CAS 1310-73-2; formula NaOH), also called caustic soda, is a strong inorganic alkali used as a reagent and process chemical. It is widely used in chemical manufacturing, pulp and paper, soaps and detergents, textiles, petroleum refining, water treatment and laboratory applications.
How should 25% sodium hydroxide solution be stored and what is its typical shelf life?
Store 25% NaOH in tightly sealed corrosion‑resistant containers (HDPE, PP or suitable stainless steel) in a cool, dry, well‑ventilated area away from acids and reactive metals. When stored properly it is generally stable for months to years; consult the supplier’s COA/SDS for the confirmed shelf life and storage recommendations.
What are the safety and handling precautions for sodium hydroxide?
Sodium hydroxide is highly corrosive and can cause severe burns; use chemical-resistant gloves, eye/face protection, and apron and work with local exhaust ventilation. Have emergency eyewash and shower available, avoid inhaling mists, and when diluting always add alkali to water slowly—never pour water into concentrated NaOH.
How does a 25% NaOH solution differ from other concentrations?
Concentration affects corrosivity, density, freezing point and dosing requirements—higher concentrations increase handling hazards and reactivity. A 25% solution is a common industrial strength balancing reactivity and ease of handling; choose concentration based on process needs and equipment compatibility.
What documentation is available for 25% sodium hydroxide?
Typical documentation includes a Safety Data Sheet (SDS), Certificate of Analysis (COA), Technical Data Sheet (TDS) and shipping papers. Additional regulatory or quality documents can be provided on request for compliance, transport and traceability.
How is 25% sodium hydroxide shipped and what packaging is typical?
Aqueous sodium hydroxide is regulated as a corrosive substance (UN1824) and is typically shipped in polyethylene drums, IBCs or tankers with appropriate labeling and secondary containment. Transport must comply with local DOT/IMDG/IATA regulations and supplier packaging options may vary by region.
Which materials are compatible or incompatible with sodium hydroxide?
NaOH is incompatible with acids and reactive metals such as aluminum, zinc and tin (reaction can release hydrogen gas). Compatible materials include stainless steels (e.g., 316), HDPE, polypropylene, PTFE and glass for many applications—verify compatibility for your specific concentration and temperature.
What are typical technical specifications offered for a 25% NaOH solution?
Typical specifications list NaOH concentration (25% w/w), assay/purity, density, limits for carbonate/chloride and heavy metals, and physical appearance. For exact values and tolerances request the product COA or TDS from the supplier.
Which industries and applications commonly use 25% sodium hydroxide?
25% NaOH is used across chemical processing, pulp and paper, textiles, soap and detergent manufacture, petroleum refining, metal processing, wastewater treatment and laboratories as a neutralizing or pH‑adjusting agent. It is selected where a strong, concentrated alkali is required for process efficiency.
How can I purchase 25% sodium hydroxide and what should I expect about availability?
25% NaOH is widely available from chemical distributors in packaged drums, IBCs and bulk deliveries; lead times and minimum order quantities vary by supplier and region. Expect to provide business credentials, indicate required packaging and shipping conditions, and request SDS/COA before purchase.

Documentation & Downloads

Safety Data Sheet
SDS / MSDS
Request COA
Certificate of Analysis
Technical Data Sheet (TDS)
Available for all products

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