Fire Assay

What is Fire Assay ?

Fire assay is an analytical techmique usedin the determinaion of the qualty and purly of gold. This method dates back to ancient imes but has been refned and improved upon ove!the years.ire asay is an analyticaltechnique used inthe determinaion of the qualty and puityof gold. This method dates backto ancientimes buthas been refined and improvedupon over the years. Fire assay is an analyticaltechnique used inthe determination of the qualty and purity ofgold. This method dates back to ancient imes but has been refined and improved upon overthe years.

Fire Assay Process

Sample preparation

With Flux Dispensing and Mixing Devices, fire assay dosing and mixing can beachieved in a repeatable, traceable and operator-safe manner, while alsoincreasing laboratory productivity.

Fusion

The pulverized sample is weighed and mixed with a fluxing agent. Lead isadded as a collector. The sample is then heated in a fumace at about 1000degrees. During this process, the lead in the flux melts and collects the preciousmetals as it forms a low-melting-point alloy with them.

Cupellation

Following the fusion, the molten lead and the precious metals are placed in aporous cupel and reheated. The lead is absorbed by the cupel, leaving behinda bead composed of the precious metals. This is a critical step for purifying theprecious metals from the lead.

Weighing and Analysis

The resulting metal bead is weighed to determine the concentration of preciousmetals in the original sample. Further tests may be conducted to ascertain theexact content of gold and silver.

Subscription

Our Products

Automatic Flux Dispenser System

Automatic Flux Dispenser System

Bullion Block

Bullion Block

Clay Crucible

Clay Crucible

Clay Graphite Crucible

Clay Graphite Crucible

Crucible Tumbler

Crucible Tumbler

Cupellation Furnace

Cupellation Furnace

Electric Crucible Loader

Electric Crucible Loader

Fire Assay Flux

Fire Assay Flux

Furnace Chamber And Tile

Furnace Chamber And Tile

Fusion Furnace

Fusion Furnace

High Temperature Muffle Furnace

High Temperature Muffle Furnace

Magnesia Cupel

Magnesia Cupel

Automatic-Flux-Dispenser-System主图02
Automatic Flux Dispenser System
The automatic flux dispenser system is a device that presets the dosage and accurately distributes the...
→
Bullion-Blocks主图01
Bullion Block
Explore DECENT premium Laboratory Consumables: Fire Assaying Bullion Blocks.Designed for high temperature...
→
Clay Crucible
DECENT clay crucibles are specially designed for gold melting and precise analysis to ensure reliability...
→
Clay-Graphite-Crucible主图04
Clay Graphite Crucible
Graphite clay crucibles, featuring high-temperature resistance, oxidation resistance, stable performance...
→
Crucible-Tumbler主图02
Crucible Tumbler
DECENT Crucible Tumbler is designed for safe and controlled mixing of fire assay samples. Experience...
→
Cupellation-Furnace主图04
Cupellation Furnace
The fire assay cupellation furnace can be customized according to specific needs, and optional laboratory...
→
Electric-Crucible-Pot-Loader主图01
Electric Crucible Loader
The electric crucible loader specially designed for laboratories can quickly and accurately transport...
→
Fire Assay Flux
Fluxes can convert infusible compounds at a certain temperature into other compounds that melt at that...
→
Furnace Chamber And Tile_1624504220_800x600
Furnace Chamber And Tile
Furnace chambers and tiles are essential components in various high-temperature processes, especially...
→
Fusion-Furnace主图02
Fusion Furnace
火试金炉是专为贵金属冶炼而设计的先进设备。
→
High-Temperature-Muffle-Furnace主图02
High Temperature Muffle Furnace
The maximum temperature of the DECENT high temperature muffle furnace can be adjusted up to 1500°C. The...
→
Magnesia-Cupel主图01
Magnesia Cupel
Upgrade your fire assaying accuracy with DECENT Magnesia Cupel.Our Magnesium Oxide Container is crafted...
→

Success Stories

Fire Assay Laboratory Equipment Upgrade – Enhancing Efficiency and Precision
More +
More +
More +
s2
More +
Quality and Safety Empowerment Successful Delivery of Mobile Containerized Chemical Labs to Saudi Arabia
More +
News Cover
More +
s1
More +
s3
More +
n3
More +
n2
More +

CONTACT US

To find out more about our products and solutions, please fil out the form below and one of our experts wil get back to you shortly.

QINGDAO DECENT GROUP consists of Decent Group Limited, Qingdao Decent Electromechanical Tech Co., Ltd., Qingdao Mars Labtech Co., Ltd. and Hunan Kilnsware Industrial Ceramics Co., Ltd.

Quick Links

product

  • Product1
  • Product2
  • Product3
  • Product4

Contact Us

Decent Group Limited

Qingdao Decent Electromechanical Tech Co., Ltd.

Qingdao Mars Labtech Co., Ltd.

Hunan Kilnsware Industrial Ceramic Co., Ltd.

Quick Links

Contact Us

  • Room 408 Huaren Building, No. 187 Zhuzhou Road, Laoshan District, Qingdao City, Shandong Province, China.

WHATSAPP

E-MAIL

Copyright © 2024 QINGDAO DECENT GROUP

Sitemap

Privacy Statement

Cookies Description

Your submission was successful.