Product Code: 8002

Reagent Grade Zinc

Lead-free99.8% Zinc Four Particle Sizes Hydrogen Generation and Reduction Reagent Grade
Reagent grade zinc (99.8% Zn) in granular, mossy, and stick forms for laboratory reduction, hydrogen generation, and analytical chemistry.
Solidus
787°F (419°C)
Liquidus
787°F (419°C)
Density
0.258 lbs/in³ (7.14 g/cm³)
Primary Elements
Zn
Nominal Composition
99.8% Zn
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Product Overview

Reagent Grade Zinc is high-purity zinc metal (99.8% Zn) produced for laboratory, analytical, and chemical processing use. Zinc is a strong, inexpensive reducing agent with a melting point of 787°F (419.5°C) and a density of 0.258 lbs/in³ (7.14 g/cm³).

Reagent zinc is a staple of the chemistry lab. It generates hydrogen when reacted with dilute acids, serves as the reducing metal in reductor columns and in organic reductions, and is used to precipitate more noble metals such as copper, silver, and gold from solution. It is also used in qualitative and quantitative analysis, in teaching laboratories, and by chemical suppliers who repackage it for their own customers.

Supplied in four forms so the particle size matches the reaction: 20 mesh and 30 mesh granular for fast, controlled reactions and column packing; mossy zinc (3/4″ – 1/4″) for steady hydrogen generation; and 1/4″ x 1/4″ x 5″ sticks for applications that call for a solid piece that can be easily removed from solution.

Available Forms

1/4" x 1/4" x 5" Sticks, 20 Mesh Granular, 30 Mesh Granular, Mossy 3/4" - 1/4"

Product Code

8002

Technical Info

Thermal Properties

Melting Point (Solidus)787°F (419°C)
Melting Point (Liquidus)787°F (419°C)

Physical Properties

Density (imperial)0.258 lbs/in³
Density (metric)7.14 g/cm³
Primary ElementsZn
Lead FreeYes
Key Features
99.8% ZincFour Particle SizesHydrogen Generation and ReductionReagent Grade
Solubility Note

reaction rate increases with finer particle size. Store dry and sealed to limit surface oxidation., Reacts readily with dilute mineral acids to release hydrogen

Nominal Composition

  • 99.8% Zn
Both are high-purity zinc, but they are made for different uses. Special High Grade (SHG) zinc is specified by total zinc content for metallurgical uses such as galvanizing, die casting, and alloying. Reagent grade zinc is supplied in particle sizes and forms suited to laboratory reactions, reductions, and hydrogen generation. If the zinc is going into a reaction or an analytical procedure, reagent grade is the appropriate choice.
Choose by the surface area the reaction needs. 20 and 30 mesh granular zinc has the most surface area and gives the fastest, most uniform reaction, which suits reductor columns and quick reductions. Mossy zinc has an open, irregular shape that produces a steady, controllable flow of hydrogen and is the traditional choice for gas generators. Sticks are used where a solid piece is preferred, for example when the zinc must be removed from the solution after a set time.
Keep zinc in a tightly closed container in a dry place, away from acids and oxidizers. Moisture slowly forms a surface oxide that reduces reactivity, and contact with acids releases flammable hydrogen gas. Finer granular forms have more exposed surface and are more sensitive to humidity than mossy zinc or sticks. Always refer to the Safety Data Sheet for handling and disposal guidance.

Safety Data (SDS)

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