Overview of Corundum Crucible

Corundum crucibles, made from alumina (Al₂O₃), are highly valued for their exceptional thermal resistance and chemical stability. These crucibles are ideal for high-temperature applications, such as melting and annealing processes in laboratories and industrial settings. Corundum crucibles can withstand temperatures up to 1800°C and are resistant to most chemical reagents, making them indispensable in various scientific and manufacturing operations.

Features of Corundum Crucible

High Thermal Resistance: Can withstand temperatures up to 1800°C without degrading.

Chemical Stability: Resistant to most acids and alkalis, ensuring minimal contamination during experiments or production.

Durability: Extremely durable and long-lasting, even under harsh conditions.

Non-Reactive: Does not react with the materials being processed, preserving sample purity.

Versatility: Suitable for a wide range of applications including melting metals, glass, and ceramics.

Precision Engineering: Manufactured to tight tolerances for consistent performance and reliability.

Specification of 6A 7A 8A refractory fire assay crucibles mgo magnesium oxide cupel

High-Purity Magnesium Oxide Crucibles for Fire Assay

Precision-Crafted for Reliable Results

Our 6A, 7A, and 8A refractory fire assay crucibles are made from high-purity magnesium oxide (MgO). They offer exceptional thermal security and chemical resistance. These crucibles are constructed to handle the most difficult conditions in rare-earth element analysis.

Each cupel is created making use of innovative pushing methods. This guarantees regular thickness and consistent framework. The result is a smooth internal surface area that lessens metal loss throughout cupellation. You get precise, repeatable assay results whenever.

Constructed for Demanding Research Laboratory Work

The MgO material withstands temperatures approximately 1,200 ° C without breaking or flawing. It withstands strike from lead, oxides, and other hostile materials utilized in fire assay. This makes our crucibles suitable for gold, silver, and platinum group steel testing.

We provide 3 typical qualities:
– 6A: General-purpose use with well balanced absorption and stamina
– 7A: Higher density for minimized porosity and better retention of fine bits
– 8A: Costs grade with optimum pureness and marginal history disturbance

All sizes fulfill worldwide standards for fire assay treatments. Each batch goes through rigorous high quality look for dimensions, weight, and absorption rate.

Trusted by Labs Worldwide

These cupels provide tidy separation of base steels from noble metals. Their regular performance reduces retesting and conserves time. Laboratories rely upon them for conformity with ASTM E1335 and ISO 11426 techniques.

Shop in a dry location to maintain integrity. Usage with correct tongs and taking care of tools to stay clear of breakage. Replace after each assay to make sure accuracy.

Select our MgO crucibles when precision, longevity, and pureness issue most in your fire assay process.

Applications of 6A 7A 8A refractory fire assay crucibles mgo magnesium oxide cupel

Applications of 6A, 7A, and 8A Refractory Fire Assay Crucibles

Made from High-Purity Magnesium Oxide (MgO)

These fire assay crucibles are developed from costs magnesium oxide (MgO). The product gives them strong warm resistance and chemical stability. That makes them perfect for high-temperature lab work.

Used in Rare-earth Element Analysis
Labs use 6A, 7A, and 8A MgO cupels to check gold, silver, platinum, and other rare-earth elements. Throughout fire assay, the cupel absorbs base metal oxides while allowing rare-earth elements collect as a bead. This separation is clean and reputable because MgO does not respond with the example.

Suitable for High-Temperature Furnaces
These crucibles manage temperatures as much as 1,200 ° C without cracking or flawing. They work well in muffle furnaces and various other common lab heating devices. Their framework stays intact also after duplicated heating cycles.

Regular Efficiency Throughout Grades
The “A” ranking (6A, 7A, 8A) shows purity and thickness degrees. Higher numbers imply tighter quality assurance and less impurities. All three grades give dependable results, yet 8A provides the highest uniformity for critical assays.

Reduced Contamination Risk
Because MgO is inert to most liquified steels and slags, it includes nearly no history disturbance. This maintains examination results accurate. Labs trust fund these cupels when trace-level accuracy issues.

Usual in Mining and Refining Labs
From expedition sites to refining plants, professionals choose MgO crucibles for regular and compliance testing. They meet worldwide criteria like ASTM E135 and ISO 11426. Their reliability sustains fast, repeatable workflows in hectic settings.

These cupels come in common dimensions that fit typical furnace arrangements. They are very easy to lots, handle, and throw away after usage. Their style helps laboratories preserve performance without sacrificing information quality.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of 6A 7A 8A refractory fire assay crucibles mgo magnesium oxide cupel

Frequently Asked Questions About 6A, 7A, and 8A Refractory Fire Assay Crucibles and MgO Cupels

What are 6A, 7A, and 8A crucibles used for?

These crucibles are made for fire assay work. They hold samples during high-temperature fusion. The “A” rating shows how pure and strong the material is. Higher numbers like 8A mean better heat resistance and fewer impurities.

Why choose magnesium oxide (MgO) cupels?

MgO cupels absorb base metals but let precious metals stay pure. They work well at high heat. Their structure stays stable during cupellation. This helps give accurate gold and silver results.

How do I pick between 6A, 7A, and 8A grades?

Use 6A for routine tests where cost matters more than extreme precision. Choose 7A for regular lab use with good reliability. Go with 8A when you need top performance—like in research or high-stakes assays—because it has the lowest contamination risk.

Can these crucibles and cupels handle repeated heating?

They are built for one-time use. Reusing them may cause cracks or add impurities to your sample. Always use fresh crucibles and cupels for each test to keep results trustworthy.

How should I store these products?

Keep them in a dry, clean place. Moisture can weaken MgO over time. Store them in sealed containers away from dust and chemicals. This keeps their performance steady until you use them.