Crucibles - Ashing - CEM Corporation

CEM Quartz Fiber Crucibles

Overview

Our unique quartz fiber crucibles significantly reduce the time required to ash samples compared to other non-porous crucibles such as ceramic or platinum. With improved airflow throughout the crucible, samples can be ashed up to 90% faster and are compatible with any type of muffle furnace. CEM’s quartz fiber crucibles cool to the touch in seconds, making them safer to use and allowing users to skip the desiccation process.

Features

Use in any muffle furnace
90% time savings compared to ceramic or platinum crucibles
Crucibles cool to the touch in seconds for safer handling
Instant cooling means there is no need for desiccation between the ashing process and re-weigh

A sample being ashed in a 100 mL quartz fiber crucible in a red hot furnace

Faster

The quartz fiber crucible design allows air to circulate within the sample, cutting test times to as low as 15 minutes.

A 50 mL quartz fiber crucible being held by a lab technician

Safer

Crucibles cool to the touch within seconds, reducing the risk of burns significantly compared to ceramic crucibles.

A quartz fiber crucible being weighed in an analytical balance

Easier

The crucibles cool almost instantly. They can be weighed immediately after ashing without long cooling times or the need for desiccation.

Diagram showing a crucible cap, an ashing cover, and a quartz fiber crucible

Crucibles, caps and covers offer the ultimate flexibility.

1. Cap

For low density samples, crucible caps will help to contain the sample and prevent ash from being lost during handling.

2. Ashing Covers

The ashing cover fits into the crucible and reduces the risk of cross contamination or ash loss. Crucibles, caps, and covers offer the ultimate flexibility.

3. Quartz Fiber Crucible

The fastest, safest, easiest to use crucible in the industry. Choose between 20 mL, 50 mL and 100 mL capacities depending on the size of sample you wish to analyze.

Crucible Sizes

20 mL

Our best-selling crucible. Holds up to 5g of sample. When used in the Phoenix BLACK microwave muffle furnace, up to 24 samples can be ashed at the same time.