30ml rounded corner laboratory high-purity zirconium crucible

The core applications of laboratory zirconium crucibles are concentrated in experimental scenarios involving high temperature, high purity, strong corrosion, and precious metals/rare earths/special materials.

I. Zirconium (Zr) Crucibles: Resistant to strong alkalis and corrosion

Strong Alkali Melting and Decomposition
Used with strong alkaline fluxes such as sodium peroxide (Na₂O₂), sodium hydroxide (NaOH), and sodium carbonate (Na₂CO₃) to decompose silicate, ores, high-silicon materials, alloys, and steel samples, replacing expensive platinum crucibles.

Strong Acid Environments (Except for non-oxidizing hot concentrated acids)
Resistant to hydrochloric acid, sulfuric acid, nitric acid, and phosphoric acid, suitable for high-temperature reactions, corrosion testing, and sample digestion in acidic systems.

Lithium Salts / Special Fluxes
Suitable for melting lithium salts (Li₂CO₃, LiBO₂), avoiding interference from sodium/potassium in elemental analysis.

Active Metals / Vacuum Melting
Used for small-scale melting (vacuum/inert atmosphere) of active metals such as titanium, zirconium, hafnium, niobium, and tantalum.

High-Temperature Ashing / Incineration
Used for high-temperature incineration and ashing of organic and biological samples, resistant to oxidation and with low pollution.

II. Core Performance (Why Choose Zirconium Crucibles)

Zirconium Metal (Zr)
Resistant to strong alkaline fluxes (alternative to platinum crucibles)
Resistant to most strong acids (except hot concentrated HF, aqua regia)
Operating Temperature: Approximately 600–1100℃ (temperature control is required in air to prevent oxidation)
Low contamination, suitable for precision machining

Zirconium Oxide (ZrO₂)
Ultra-high temperature: Usable up to 2200℃
Extremely chemically inert: Does not react with most metals, oxides, or silicates
Resistant to thermal shock, dense, low contamination
Suitable for high-purity / precious metals / rare earth / ultra-high temperature applications

III. Contraindications (Must Avoid)

Zirconium Metal: Hydrofluoric acid (HF), fluorides, concentrated oxidizing acids (hot concentrated nitric acid + hydrochloric acid), high-temperature air (easily oxidized at >600℃)
Zirconium Oxide: Hydrofluoric acid (HF), strong alkaline fluxes (high temperature)

Quality Control and Testing

Each product undergoes rigorous inspection before shipment:

Dimensional Inspection: Precise measurement of thickness, length, and width

Chemical Composition and Mechanical Property Analysis: Third-party testing reports

Surface Inspection: Visual and microscopic inspection for defects

Ultrasonic Testing: Detection of internal defects

Why Choose Us

Technology and Quality: Located in Baoji, China's Titanium Valley, we possess professional production technology and extensive experience in non-ferrous metal manufacturing.

Global Coverage: We provide consistently high-quality products to customers in Australia, South Korea, Germany, the USA, the UK, Malaysia, and the Middle East.

Quality Commitment: We never compromise on quality and are responsible for every product we manufacture.

Technical Support: We have professional personnel overseeing the entire process from raw materials to finished products!

Our products are available all over the world.

Contact Us

Our team is dedicated to serving you and hopes that every product you purchase will meet your expectations!

Email: lucky@bjfreelong.com

WhatsApp: +86 13335371763

Please contact us for detailed quotations and technical specifications. We look forward to becoming your trusted high-end titanium materials partner.