46 Starting from Sand
If a product or material is created, mixed, processed, examined or stored in a laboratory, more than likely it will come in contact with laboratory glassware manufactured by Kimble Chase. Kimble Chase unveiled a tagline developed in concert with its global operations entitled: Global Labware Advancing Scientific Solutions or, G.L.A.S.S. Spanning three continents, with multiple manufacturing sites, Kimble Chase is the largest manufacturer of laboratory glassware products in the world, and the only producer that begins with raw sand to formulate finished products – a start-to-finish process that is unique to Kimble Chase. Customers recognise the company’s products by its globally recognized brand names: Kimble, KIMAX, Kontes, BOMEX, Pfeiffer, Scherf and Chase Scientific.
Kimble Chase is the leader in market share for reusable, disposable, specialty and custom scientific glassware. Supporting the broadest range of products available, the company manufactures and supplies glassware for virtually every laboratory, including chemical, pharmaceutical, medical, materials research and environmental.
The full range of glassware and glass-related services includes clinical laboratory products, specialty glass apparatus referenced in ASTM, USP and AOAC and APHA procedures, laboratory apparatus for sample preparation and analysis, chromatography columns and analytical instrumentation replacement and accessory parts, molecular biology sample preparation products and accessories, custom engineering and OEM fabrication services.
Circle no. 169 ADVERTORIAL
Digital Manometers, Pressure Measurement Technology, Plant and Machinery Manufacture
2 MI PAA 153 2 MI PA 100
Perfect Match for Flow Chemistry
LABORATORY PRODUCTS
2 MI PA 180 2 MI PA 130
2 MI PA 130
Pressure Catheter
Tracking Down Pressure
Keller AG für Druckmesstechnik presents its high-accuracy LEO 2 digital manometer to handle demanding monitoring tasks in the plant and machinery manufacturing sector.
Hydrodynamic & Aerodynamic Pressure Measurement SIZE PROBLEMS?
High tech miniature pressure sensors for various applications
Ø 2…6 mm
In the compensated temperature range from 0...50 °C, this micro- processor-controlled instrument records two measured values per second with typical overall accuracy of 0,1 %FS. The dual digital display updates twice every second, showing the measured value and the minimum or maximum value attained.
Two ergonomically positioned keys give the operator reliable access to the microprocessor-based functionality of the LEO type manometer. As well as a choice of five different units of measurement, the user-friendly two-key operating system provides access to the entire range of functions: the stored MAX/MIN can be erased and reset to zero, or the device can be switched to continuous mode. In continuous operating mode, the battery has capacity for up to 1400 hours. The LEO2 has a standard automatic switch-off time of about 15 minutes after the last key was pressed, this function extends the battery life where continuous operation is not required.
As a special feature, LEO 2 also offers an unusual operating mode that is highly relevant under practical conditions: It has a Zero Tare feature which allows the user to set the zero at any pressure, so the manometer will then always show deviations from the Zero Tare Value as the actual value.
Developed and designed in line with practical requirements, this manometer is available for prompt delivery with four measurement ranges of -1…3 bar to 0…700 bar. The standard design already offers IP65 as the housing protection class. The optional protective cover enables the LEO 2 to operate reliably outdoors in all weather conditions. This instrument is also available in an Exia ATEX approved version compliant with 94/9/EC (ATEX 100a).
www.keller-druck.com Circle no. 170
The standard delivery includes a swivel pressure connection which optimises readout alignment during operation.
Circle no. 171
The FlowSyn Continuous Flow Reactor from Uniqsis now gives chemists the freedom to choose the FlowSyn system with the appropriate flow path material best suited to their particular chemistry. Flow chemistry in micro-reactors has many advantages over batch processing and the user can now choose a flow path a configuration that is most chemically compatible with the type of chemistry to be performed.
A limitation of existing flow reactors is attributable to the use of PEEK components in the flow path. This material is an excellent engineering polymer but has limited compatibility with concentrated mineral and organic acids and very strong organic bases, whereas Uniqsis fit specially modified high- pressure pumps that do not contain PEEK.
A wider range of chemistries is now possible and the company claims to be the only flow reactor supplier offering this extensive range of chemical compatibility.
Reactions requiring the use of strong acids such as nitric acid (nitrations) or powerful organometallic bases such as butyl lithium (metallations) are now routinely possible in flow chemistry.
For many scientists the standard FlowSyn (PEEK and PTFE flowpath) offers a practical combination of high- pressure capability and good chemical resistance.
In response to customer feedback Uniqsis have recently introduced a range of models compatible with a broader range of chemistries.
For the broadest chemical resistance, particularly to concentrated mineral acids, FlowSyn PTFE benefits from a flow path constructed entirely from PTFE, however this configuration can only withstand moderate pressures.
Where high-pressure operation is a prerequisite, FlowSyn Steel has a flowpath constructed from permanently swaged 316S stainless steel tubing. This configuration affords safe operation up to 100 bar (1400psi) and chemical compatibility with strong acids such as concentrated sulphuric acid and TFA.
Circle no. 172
INTERNATIONAL LABMATE - AUGUST/SEPTEMBER 2010 - LABORATORY PRODUCTS
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