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Lab Pro SODIUM HYDROXIDE 50% (w/w) 1 Gallon, 30 Gallon, 1Gallon

$82.14
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SKU: ZS0609-128
California prop 65
Description
  • Chemical Name
    Sodium Hydroxide
  • Concentration
    49.0–51.0% (w/w)
  • Form
    Liquid
  • Appearance
    Clear
  • Molecular Formula
    NaOH

Description

What is Lab Pro Sodium Hydroxide 50% (w/w)?

Lab Pro Sodium Hydroxide 50% (w/w) is a highly concentrated aqueous solution of sodium hydroxide (NaOH). Supplied as a clear liquid, this strong alkaline solution is designed for analytical and industrial applications requiring precise concentration control and low impurity levels.

Key Features

  • Sodium hydroxide aqueous solution
  • 49.0–51.0% NaOH (w/w)
  • Liquid form
  • High purity with controlled trace impurities
  • Suitable for analytical and regulated testing applications

Applications

  • PFAS testing
  • Analytical chemistry
  • Calibration and standardization procedures
  • Industrial and construction-related chemical processes
  • Alkaline activation and material processing

Standards & Suitability

  • Suitable for DIN 38407-42
  • Suitable for EPA 533
  • Suitable for EPA 8327
  • Suitable for EPA OTM-45

Packaging & Storage

  • Container Size: 1 Gallon / 30 Gallon
  • Physical Form: Liquid
  • Recommended Storage Temperature: 15–25 °C

Safety Notice

Sodium hydroxide solutions are highly alkaline and corrosive. Proper handling, storage, and disposal in accordance with applicable safety regulations are the responsibility of the end user.

Standards and Certifications

  • Lab Pro CofA
  • Lab Pro SDS
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Chemical Information

Chemical Name Sodium hydroxide solution
Linear Formula NaOH
CAS Number 1310-73-2
Molecular Weight 40.00 g/mol
SMILES [OH-].[Na+]
InChI Key HEMHJVSKTPXQMS-UHFFFAOYSA-M

Physical Properties

Appearance Clear liquid
Color APHA ≤10
pH 14 (20 °C, 89 g/L in H₂O)
Density 1.52 g/cm³ at 20 °C
Melting Point 12 °C
Boiling Point 135 °C at 1013 hPa
Vapor Pressure 2 hPa at 20 °C / 3 mmHg at 37 °C

Purity & Impurity Limits

Total Nitrogen (N) ≤0.0003%
Aluminum (Al) ≤0.0005%
Iron (Fe) ≤0.0005%
Heavy Metals (as Pb) ≤0.0005%
Phosphate (PO₄) ≤0.0005%
Silicate (SiO₂) ≤0.005%
Sulfate (SO₄) ≤0.005%
Chloride (Cl) ≤0.01%
Potassium (K) ≤0.01%


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FAQs

What is Lab Pro Sodium Hydroxide 50% (w/w) used for?

Lab Pro Sodium Hydroxide 50% (w/w) is used in analytical chemistry, regulated testing, and industrial processes requiring a strong, high-purity alkali. Common uses include PFAS testing, calibration procedures, material processing, and chemical manufacturing applications.

Is this sodium hydroxide solution suitable for analytical testing?

Yes. This product is formulated with controlled impurity limits and consistent concentration, making it suitable for analytical and regulated testing applications, including methods referenced by EPA and DIN standards.

Why is sodium hydroxide supplied at 50% concentration?

A 50% (w/w) sodium hydroxide solution provides high alkalinity while remaining liquid at typical storage temperatures. This concentration is commonly used for efficiency in dosing, dilution, and industrial or analytical workflows.

How should Lab Pro Sodium Hydroxide 50% be stored?

The solution should be stored in its original container at 15–25 °C. Containers must be kept tightly closed and protected from incompatible materials due to the product’s highly corrosive nature.

What safety precautions are required when handling this product?

Sodium hydroxide 50% is highly corrosive. Appropriate personal protective equipment, including gloves, eye protection, and protective clothing, must be worn. Handling and disposal should follow SDS guidance and applicable safety regulations.