Description

Devarda's Alloy is a granular, free-flowing alloy primarily composed of aluminum, copper, and zinc, widely recognized for its powerful reducing properties. This material is essential for the quantitative determination of nitrate and nitrite content in various analytical and industrial processes. It serves as a critical reagent for laboratories, environmental testing facilities, and manufacturers in the chemical synthesis and metallurgical sectors who require precise and reliable analytical results.

Application

• Nitrogen Determination (Kjeldahl Method): The primary application is as a reducing agent in the classic Kjeldahl method for the quantitative analysis of nitrate and nitrite nitrogen in water, soil, food, and agricultural products.
• Wastewater and Environmental Analysis: Used in standard test methods to monitor nitrate/nitrite pollution levels in industrial effluent and environmental water samples for regulatory compliance.
• Fertilizer and Agricultural Testing: Critical for assessing the nitrate content in fertilizers, plant tissues, and soils to guide agricultural practices and ensure product quality.
• Food and Beverage Quality Control: Employed in food chemistry to determine preservative (nitrate/nitrite) levels in products like meats, cheeses, and certain vegetables.
• Chemical Synthesis: Acts as a reducing agent in specific organic and inorganic synthesis reactions where controlled reduction of nitrogenous compounds is required.
• Metallurgical Processes: Utilized in some pyrometallurgical operations for deoxidation or as a source of aluminum in alloy production.

Basic Information

Product Name	Devarda's Alloy
CAS No.	8049-11-4
Molecular Formula	Al-Cu-Zn (Alloy)
Molecular Weight	N/A (Metallic Alloy)
Synonyms	Devarda Alloy; Devarda's Metal; Aluminum-Copper-Zinc Alloy; Nitrate Reducing Alloy; Kjeldahl Alloy; Devardas Legierung; Alliage de Devarda; CuZnAl Alloy
EINECS	232-455-1

Quality Control

Our Devarda's Alloy is manufactured to ensure consistent, high-reactivity performance critical for analytical accuracy. Each batch undergoes rigorous quality testing, including analysis of its reducing efficiency and particle size distribution, to guarantee it meets the stringent requirements of standard analytical methods (e.g., ASTM, ISO, APHA). A Certificate of Analysis (COA) detailing purity, composition, and performance is available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its nature as an easily oxidized (store under inert atmosphere) material, prolonged exposure to air should be minimized after opening the original container to maintain optimal reactivity.

Specification

Item	Specification
Appearance	Granular, gray metallic powder
Identification (Reaction)	Conforms (Rapid reduction of nitrate)
Composition (Aluminum)	44 - 46 %
Composition (Copper)	49 - 51 %
Composition (Zinc)	4 - 6 %
Reducing Efficiency	> 99.5% (vs. Standard)
Particle Size (Typical)	20 - 80 mesh
Nitrate Nitrogen Recovery	> 99%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.