Timstar - Science

A one piece clamp moulded from acetal homopolymer to hold a 50 mL burette. Suitable for 12 mm diameter retort rods only.

Polypropylene.

A pattern unit comprising high strength alloy casting with plastic jaws. Suitable for all burettes up to 100 mL capacity.

Glass stopcock Class A with blue graduations.

Complies with ISO 385. Graduations in white enamel for increased visibility with dark solutions. Grease-free interchangeable PTFE key with 1.5 mm bore. 0.1 mL graduations.

Hardwood complete with base and rod. All parts are interchangeable. Funnel holder is slotted.

To BS 846 Class B, permanent amber stain graduations.

This Class B burette is made from precision bore borosilicate glass for improved accuracy along the entire length. It has an interchangeable PTFE stopcock and a replaceable glass jet. This burette has blue graduations every 0.1 mL and has a tolerance of +/- 0.1 mL. Manufactured in accordance with BS EN ISO 385: 2005.

Spare 50 mL tube with 0.1 mL graduations. For BU03765.

Spare stopcock and jet. For BU03765.

Spare jet for BU03765.

Class B burette with PTFE stopcocks and white 0.1 mL graduations.

Class B burette with PTFE stopcocks and black 0.1 mL graduations.

Class B burette with glass stopcock and white 0.1 mL graduations.

Resistant to most chemicals and stable from 40 °C to 200 °C.

To BS 846. Class B with permanent blue graduation.

To BS 846 Class B. Blue graduations.

White enamel back, PTFE stopcock, blue graduations.

To BS 846 Class B. Amber graduations.

With 'Rotaflo' stopcock and porosity 'O' sintered disc. Stopcock bore 3 mm. Socket 19/26. Dimensions (L x Diameter): 300 x 20mm.

A mixture of cyan, magenta and yellow inks which appears black when combined but separates out into bright constituent colours when spotted on chromatography card and separated using solvent, (water) or by electrophoresis. Provides sufficient for approximately 500 ink spots.

An ink which uses isopropyl alcohol, instead of water, as solvent, so it dries by absorption instead of evaporation. When paper with Quink becomes wet, the ink will run into its separate components. The bottles have low centre of gravity to reduce the risk of tipping over. Supplied in 57 mL bottle.

Scarlet chromatography ink

Green chromatography ink

Blue/Black chromatography ink

Supplied as box of 100 sheets.

Supplied as box of 100 sheets.

Pattern 'CRL'. Eleven 3mm wide slots. Supplied as box of 100 sheets.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Supplied in reel, 100 m long.

Dimensions (W x D x H): 230 x 90 x 230 mm.

To fit CH04012.

A set of 4 Mystrica colorimeters supplied in a deep Gratnells tray with a lid and polyethylene foam insert. The Mystrica colorimeter delivers high quality performance in a small, robust, user-friendly and affordable package. It has 3 LED light sources emitting red (630nm), green (525nm) or blue (465nm) which are easily selected using the RGB button. You can choose to measure either absorbance or transmittance with the simple press of a button. Absorbance readings are shown from .000 to 1.999 and transmittance is shown from 100.0 to 0.1%. The power switches off after 2 minutes to conserve battery life, unless it is connected to a PC, tablet or phone. This colorimeter allows the use of 12 mm test tubes as well as standard 4.5 mL cuvettes, creating a more versatile unit. Features: • Wireless connection to iPads, iPhones and Android™ devices • Mystrica Colorimeter app available on the App Store and Google Play™ • Each colorimeter has unique identity. The app detects all units within range of an iPad or iPhone and allows one to be selected • Collect data as graphs and tables • Continuous data collection or separate readings • Best fit line for rate of reaction • Email results as .csv file for analysis and storage • Fully supported suggestions for practical activities. • Power: 4 x AA batteries (not included) or via USB when connected to computer Price includes 4 colorimeters, 40 plastic cuvettes with caps, 4 cuvette stands, 25 x 12 mm glass test tubes, 2 sets of instruction sheets, 2 user manuals and 4 USB links.

Rod and disc type. Borosilicate glass. 20 discs.

Non-jointed, borosilicate glass.

Non-jointed, borosilicate glass.

Pair of rods.

Carbon rods, 100 x 5 mm. Pack of 10 rods.

Carbon rods, 200 x 8 mm. Pair of rods.

Platinum electrodes, with screw terminals. Manufactured in borosilicate glass. Length from tip of foil to tip of terminal, 114 mm.

These versatile electrode holders are suitable for holding Carbon rod electrodes as well as metal strip electrodes. They are designed to fit over 100 mL and 250 mL glass beakers, being held in place by small plastic lugs to prevent them slipping off. Resistant to corrosion, they accept 6 - 8 mm diameter cylindrical (e.g. carbon) electrodes and 19mm wide, 0.8 mm (minimum) thick metal strip electrodes. The brass connectors also resist corrosion and are compatible with the usual 4 mm stackable type lab leads. To tighten the carbon electrodes without crushing them, the setscrew is equipped with stop. • 4 mm sockets • Dimensions (L x W x H): 100 x 40 x 15 mm • Complete with 2 carbon electrodes

These 'S' shaped electrodes are convenient and easy to use simply hang them over the rim of the beaker containing the electrolyte and connect crocodile clips with 4 mm leads to them! Made from insulated brass, with a short length of carbon rod attached at the lower end and bare contact at the top for attaching crocodile clip. Supplied as a pair of electrodes.

These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.

These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.

These round electrodes will fit the electrode holder EL110620, the electrode connector EL150426, and rubber stoppers with hole. Diameter 6-7 mm.