Laboratory 15-30ml pure nickel crucible with lid

Nickel crucibles are high-temperature resistant containers made from high-purity nickel (Ni≥99.5%) through deep drawing, welding, precision machining, and heat treatment. Their core advantages are extremely strong alkali resistance, excellent thermal stability, and mechanical strength. They are key high-temperature vessels in the fields of chemical analysis, metallurgical smelting, and new material synthesis.

I. Core Materials and Grades

Mainstream Materials: Industrial pure nickel (Ni200/Ni201), high-purity nickel N0201 (Ni≥99.5%), N0200 (Ni≥99.9%)

Key Performance:
Melting Point: 1455℃
Recommended Long-Term Operating Temperature: ≤700-800℃ (strong oxidizing atmosphere); up to 1100℃ in inert/reducing atmosphere
Short-Term Withstand: 1200-1300℃
Density: 8.9g/cm³
Thermal Conductivity: 70-80 W/(m·K) at high temperatures, ensuring uniform heating

II. Product Features

Super Alkali Resistance: Highly stable against strong alkaline fluxes such as NaOH, KOH, Na₂O₂, and Na₂CO₃, making it the preferred container for alkali-melted samples.

High Temperature Resistance and Deformation Resistance: Low high-temperature creep rate, resistant to deformation and cracking under long-term heating, resulting in a long service life.

Dense and durable structure: Mostly integrally stretched, with uniform wall thickness, no sand holes, good airtightness, and high strength.

Easy to clean and reusable: Smooth surface, easy to clean after experiments, and can be reused multiple times.

Usage restrictions: Not resistant to strong acids (especially oxidizing acids), sulfur-containing substances, or borax.
Do not melt Al, Zn, Pb, Sn, or other metal salts (may cause crucible brittleness).
Do not use for strong oxidizing calcination of precipitates.

III. Specifications (Standard)
Volume: 5mL, 10mL, 15mL, 25mL, 30mL, 50mL, 100mL, 200mL (customizable up to 500mL and above)
Wall thickness: 0.5-1.2mm (laboratory); 1.5-5mm for industrial smelting
Shape: Tall type, low type (conical/cylindrical), standard matching nickel cap
Typical dimensions (50mL): Mouth diameter 45mm, base diameter 30mm, height 45mm, wall thickness... 1mm

IV. Main Application Areas

Chemical Analysis: Sample pretreatment using the alkali fusion method for ores, soils, ceramics, and refractory materials (geological, metallurgical, and building materials laboratories)

Metallurgical Industry: Small-batch smelting and purification of precious metals (gold, silver, platinum) and rare metals

New Material Synthesis: Crystal growth in alkaline environments at high temperatures, sintering of ceramic/oxide materials

Chemical and Energy Industries: Alkaline molten salt reactions, fuel cell material preparation, high-temperature synthesis of special catalysts

V. Usage and Maintenance Points

New Crucible Pretreatment: Ignite at 600℃ in a muffle furnace until blue-purple → Boil in dilute hydrochloric acid → Rinse with pure water

Temperature Control: Do not exceed 700℃ in a strong oxidizing atmosphere; avoid rapid temperature changes.

Cleaning: After experiments, boil in dilute acid (1:20 HCl) for cleaning; do not scrape the inner wall with hard objects.

VI. Quality Standards

Purity: Ni ≥ 99.5% (High-purity type ≥ 99.9%)

No cracks, no sand holes, uniform wall thickness, smooth surface

Pass alkali corrosion resistance test, meet thermal shock stability standards

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!

Contact Us
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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.