Sodium Hydroxide Flakes (NaOH, Lye)

Name: Sodium Hydroxide Flakes
Brand: Alliance Chemical
SKU: Z8-MCQ9-XBS9
Availability: InStock
Rating: 4.9 (18 reviews)

Commercial Fulfillment Snapshot

Buy Sodium Hydroxide Flakes 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
Soap & detergent producers
Food processing plants
Research laboratories

Purity / Grade Guide

Industrial & lab applications
COA-verified product quality verified by COA
Suitable for commercial processes
High-purity alkali base

Pack Sizes

2 lb: bench & testing
5 lb: shop & formulating
55 lb: bulk, best $/lb

SDS / COA / TDS

UN 1823 Class 8 packaging
Safety Data Sheet included
Certificate of Analysis provided
DOT hazmat shipping compliance

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

Sodium Hydroxide Flakes (NaOH, CAS 1310-73-2) — also known as caustic soda or lye — is a strongly alkaline inorganic compound supplied as white crystalline flakes. One of the most widely used industrial chemicals, NaOH is valued for its reactivity as a strong base and its high solubility in water (NIOSH Pocket Guide).

Key Specifications

Chemical Name	Sodium Hydroxide
CAS Number	1310-73-2
Formula	NaOH
Molecular Weight	39.997 g/mol
Form	White crystalline flakes

Industrial Applications

Industry	Application
Chemical Manufacturing	Neutralization reactions, pH adjustment, and chemical synthesis
Pulp & Paper	Kraft process for wood pulp digestion and bleaching
Metal Finishing	Degreasing and etching aluminum and other metals prior to coating
Soap & Detergent	Saponification of fats and oils
Wastewater Treatment	pH correction and heavy metal precipitation
Textile Processing	Mercerization of cotton fibers

Shipping & Compliance

UN Number	UN1823
Hazard Class	8 — Corrosive
Packing Group	II
Compliance	OSHA HCS 29 CFR 1910.1200, GHS Rev. 7
Documentation	Certificate of Analysis (COA) and Safety Data Sheet (SDS) included with every shipment
Packaging	DOT 49 CFR compliant hazmat packaging

Available in 10 sizes from Alliance Chemical with ground shipping throughout the continental United States.

Values reflect typical specifications; refer to the product Safety Data Sheet (SDS) and Certificate of Analysis (COA) for lot-specific data.

Property	Value
Molecular Weight	40.00
Formula	NaOH
Assay	98-100%
Grade	Technical Grade
Form	Solid
Solubility	Soluble in water
Appearance	White, solid flakes
Melting Point	318
Boiling Point	1390
Specific Gravity	2.13
Industry	Water Treatment, Industrial, Pharmaceutical, Food Industry, Research Laboratory

Frequently Asked Questions About Sodium Hydroxide Flakes

What is Sodium Hydroxide Flakes and what is its chemical formula?

Sodium Hydroxide Flakes 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 39.997 g/mol. Alliance Chemical supplies Sodium Hydroxide Flakes in Technical grade for laboratory, industrial, and commercial applications.

What are the physical properties of Sodium Hydroxide Flakes?

According to the NIOSH Pocket Guide to Chemical Hazards, Sodium Hydroxide Flakes is supplied as a solid with a white crystalline flakes appearance. It has a melting point of 318°C, a boiling point of 1390°C, a flash point of N/A. The specific gravity is 2.13 relative to water. Solubility: Highly soluble in water, moderate alcohol solubility.

What grade and purity of Sodium Hydroxide Flakes does Alliance Chemical offer?

Alliance Chemical offers Sodium Hydroxide Flakes in Technical grade with a purity assay of 100%. 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 Flakes?

Sodium Hydroxide Flakes 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 Flakes?

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 Flakes?

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 Flakes?

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 Flakes?

DOT Classification per 49 CFR 172.101:UN1823, 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 Flakes 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 Flakes?

Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Sodium Hydroxide Flakes. 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.