High-Form Porcelain Crucibles with Lids

Size

CPHFL-5 (5ml)

CPHFL-10 (10ml)

CPHFL-15 (15ml)

CPHFL-30 (30ml)

CPHFL-50 (50ml)

CPLFL-100 (100ml)

Price

Quantity

Secure payments

Consumables & Accessories

High-Form Porcelain Crucibles with Lids

These high-form porcelain laboratory crucibles are designed for heating small solid samples and chemical compounds during laboratory testing and sample preparation. Each crucible features a tall-form design with a matching porcelain lid.

Available in 5 mL to 100 mL capacities, they are suitable for Canadian teaching, research and quality control laboratories performing appropriate high-temperature procedures, including sample ignition and ashing.

Key Features

Laboratory porcelain: Designed for suitable high-temperature sample preparation.
High-form design: Taller profile for holding solid samples during heating.
Matching lid: Helps reduce splashing and sample loss during appropriate procedures.
Six capacities: Choose from 5, 10, 15, 30, 50 and 100 mL.
Reusable labware: Suitable for repeated use when handled and maintained according to the applicable procedure.

Ideal Applications

University and college chemistry laboratories, teaching experiments, sample ignition, laboratory ashing, gravimetric sample preparation and industrial QA/QC testing where porcelain crucibles are appropriate for the method.

Before Heating: Confirm that the selected crucible is suitable for your required temperature, sample chemistry and heating procedure. Porcelain can crack from rapid temperature changes. Avoid thermal shock, and do not use with chemicals that attack porcelain, including hydrofluoric acid.

Available Sizes

Select the capacity required for your sample volume, handling method and laboratory equipment.

Capacity	Cambridge SKU	Typical Selection Guidance
5 mL	Confirm SKU	Very small samples and teaching experiments
10 mL	CPHFL-10	Small-scale sample preparation
15 mL	CPHFL-15	Routine small laboratory samples
30 mL	CPHFL-30	General laboratory heating and sample preparation
50 mL	CPHFL-50	Larger sample quantities
100 mL	CPHFL-100	Higher-volume sample preparation

Capacities and SKU numbers reflect Cambridge's listed variants. Confirm the quantity supplied per order before purchasing. Capacity is nominal and is not a calibrated measurement volume.

Additional Product Information

High-Form vs. Low-Form Crucibles

High-form crucibles have a taller profile relative to their diameter. They may be preferable when handling samples that benefit from a deeper vessel.

Low-form crucibles have a wider, shallower profile and may be more convenient for certain heating, access or handling procedures.

Choose the shape specified by your analytical method whenever one is required.

See our Low-Form Porcelain Crucibles with Lids.

Heating, Cooling and Handling

Use the crucible only within its confirmed temperature and chemical compatibility limits. Follow your laboratory's established heating and cooling procedure.

Inspect the crucible and lid for chips or cracks before use.
Avoid sudden temperature changes that could cause cracking.
Use suitable supports and laboratory tongs when handling heated crucibles.
Allow controlled cooling before weighing or further handling.
Follow the required conditioning, cooling and weighing steps for gravimetric methods.

The exact heating temperature and ramp rate should be confirmed for the product supplied.

Choosing a Crucible for Ashing or Gravimetric Testing

When selecting crucibles for laboratory ashing or gravimetric work, consider:

The sample quantity and expected residue volume
The required furnace temperature and heating cycle
Compatibility between the sample and porcelain
The required crucible geometry and lid arrangement
Whether the analytical method specifies a particular crucible material

For methods requiring controlled ignition temperatures, use a suitable laboratory muffle furnace. Not every porcelain crucible is appropriate for every ashing or gravimetric method.

Frequently Asked Questions

What are high-form porcelain crucibles used for?

They are used for heating, ignition, ashing and related sample preparation procedures when porcelain is appropriate for the laboratory method.

Is a lid included?

Cambridge lists these crucibles with matching lids. Confirm the sales quantity if ordering multiple units for a laboratory or classroom.

What sizes are available?

Cambridge currently lists 5, 10, 15, 30, 50 and 100 mL capacities.

Can porcelain crucibles be used in a muffle furnace?

Porcelain crucibles are commonly used for appropriate furnace heating procedures. Confirm the temperature rating of the specific crucible and ensure it matches your furnace settings and analytical method.

Are these suitable for ash content testing?

They may be suitable for ash content testing where the method permits porcelain crucibles and the specified temperature is within the crucible's confirmed operating limit.

Why can porcelain crucibles crack during heating?

Rapid heating or cooling can create thermal stress. Inspect crucibles before use and follow the manufacturer's recommended temperature change limits.

Can these crucibles be used with all chemicals?

No. Chemical compatibility depends on the sample composition and temperature. Porcelain is unsuitable for certain substances, including hydrofluoric acid.

Can Cambridge supply crucibles for university teaching labs?

Yes. Canadian universities, colleges, schools and research laboratories can contact Cambridge with the required capacities, quantities and purchasing requirements.

Related Laboratory Products

Need Help Choosing Laboratory Crucibles?

Cambridge Environmental can help Canadian teaching, research and QA laboratories compare porcelain, nickel and stainless steel crucibles for their sample preparation requirements.

Contact us with your required capacity, heating temperature, sample material and quantity. We can help confirm the appropriate crucible and provide Canadian pricing for larger laboratory orders.

Contact Cambridge for Crucible Support