Lid 20mm, 7mL, 2 Windows, Long Path Length, Round Bottom, UV vis Spectrophotometer Cuvette

Lid 20mm, 7mL, 2 Windows, Long Path Length, Round Bottom, UV vis Spectrophotometer Cuvette

$16$88 /pc

20 mm path length of cuvette. Volume of 7ml. 2 polished windows for uv vis applications. Round bottom for easier cleaning. Different types are available. Stock now!

  • NRC
  • CRF
  • CRF-H
  • HTR
  • Long Wall
This product has a minimum order quantity of 2


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This is a 20 mm long path length UV vis cuvette with a volume of 7 mL. The internal width is 10 mm. This long optical path length cuvette is selected for macro volume samples or a low concentration chemical solution that cannot be easily concentrated.

This cuvette is designed with 2 clear windows for use in absorption spectroscopy experiments, and two frosted sides for easy handling. This type of cuvette is not appropriate for use in fluorescence spectroscopy where it is necessary to have four polished windows. Cuvettes with four polished sides here.

  • 2 Clear Windows for Spectrophotometers
  • PTFE Lid Included with Each Cuvette
  • Fabricated from UV-vis Fused Quartz (190 nm – 2500 nm)
  • Long Optical Path Length of 20mm
  • Door to Door Shipping Duty Unpaid (DDU) Worldwide
20mm Path Length Cuvette Size

Long Path Length Cuvette

20mm 2 Clear Window Cuvette
Part No Inside Width 10 mm
Material Quartz Transmission 80% or 83%
Cap Type PTFE Lid Volume 7 ml
Windows 2 Windows Inner Path 20 x 10 mm
Manufacturing NRC / CRF / HTR* Outer Size 45 x 12.5 x 22.5mm
Bottom Round Wavelength 190 – 2500nm
Path Length 20 mm Include Lid, Cell

*HTR: High-Temperature Resistant. Highest quality for advanced experiments. These types of cuvettes are melt and manufactured as one piece, with extraordinary resistance to high temperature (1200℃) and corrosive chemicals. Transmission is 83% over. Zero data reading variation is available on request (default <0.3%) for 2 or more pieces.

  • Note: These HTR cuvettes can be used with most popular organic solvents, as well as acids and bases. They are compatible with chemicals such as acetone, butanone, DMF, and concentrated hydrochloric acid.

*CRF: Chemical Resistant Fused. Bestseller! This type of cuvettes is resistant to most organic solvents, acids, and bases. However, it has a chance to be stained by some chemicals to the bonding edges. It’s a cheaper alternative to the HTR type.

  • Note: please don’t use the CRF cuvette to store chemicals for a long time. Clean it after use.

*NRC: Non-Resistant To Chemicals. This type of cuvette is assembled with glue.

  • Note: Please note that these NRC cuvettes should not be used with benzene, toluene, aqua regia, ethanol, corrosive solutions, or other similar substances, as they may degrade the bonds between the pieces and cause the cuvette to leak. DO NOT rinse the cuvette with ethanol or similar solutions for cleaning.
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Why Our Cuvettes?

Exceptional Accuracy

Optical Path Length and Parallelism are Exceptional Accurate.

Chemical Resistance

Very High-Temperature Stability (1200℃, HTR) and Chemical Resistance (CRF & HTR).

Guaranteed Transmission

Guaranteed 83% (HTR) From 190nm up to 2500nm of the Quartz Material.

Proven Accuracy

Guaranteed Precision of Pair Difference of 0.3% (0% On Request, HTR).
2 Clear Window Long Path Length Cuvette

Quartz Cuvette for Spectroscopic Applications

Big Volume Cuvette for Spectrophotometer

Bulk Order Discounts

Bulk discounts available. Please consult our team.

Clear Upfront Pricing

Simple and secure online payment by Stripe, Paypal or Bank Transfer.

POs Accepted

Purchase Orders (POs) are Accepted for Universities and Institutions. Pay after Ship.

Custom Design

Tailor in Sizes or Materials. Create your own Custom Cuvette with us.

Our Guarantees

Worldwide Shipping

We ship orders to anywhere in the world. Door to Door Duty Unpaid (DDU).

Fast Secure Dispatch

Rapid dispatch on in-stock items via secure tracked courier services.

Breakage Replacement

Breakage by shipment will be replaced by new delivery F.O.C or refund on request.

Expert Live Support

We are always ready to help. Emails are usually replied in 8 hours. Live Chat Now!
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Additional information

Weight 110 g
Dimensions 13 × 10 × 2 cm

NRC, CRF, CRF-H, HTR, Long Wall


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