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Laboratory Equipment
Boyle’s Law Apparatus
Boyle’s Law apparatus is ideally suited to demonstrate Boyle’s Law. Colored Water or Oil is gradually pumped from a reservoir into a tube containing air. Whilst the volume of air is read from the graduated tube, pressure is measured by a Bourdon gauge.SKU: n/a -
Laboratory Equipment
Bridge with Pencil Jockey
We are offering Meter Bridge With Pencil Jockey to our customers. The four-gap bridge has a large and heavy copper strip of (SWG No. 18) mounted on a heavy 3/4” thick laminated base of size 45” x 4” x 3/4”. … The ends gaps are closed by removable Copper Binding pieces which are held in position by the terminals.SKU: n/a -
Laboratory Equipment
brix honey sugar content test procedure
Introduction There are a lot of different sugars, e.g. sucrose, malt sugar, glucose, HFCS. Strictly speaking of Brix,only the pure sucrose content in a solution is meant. But often as well, the High Fructose Corn Syrup (HFCS) is measured and expressed in Brix ˚. This sugar concentration can be measured with density meters and refractometers. Both instruments are capable to convert the measured experimental data automatically into Brix degrees or HFCS. What is Brix ? Brix is the measurement in percentage by weight of sucrose in pure water solution. This designation of Brix degrees is only valid for pure sucrose solutions. Pure sucrose is extracted from sugar-cane or sugar-beet. What is HFCS ? High Fructose Corn Syrup (HFCS) is a liquid sweetener that is extracted from cornstarch containing mainly Fructose and D-Glucose. HFCS is used to replace sucrose in the beverage and food industries. HFCS is available in three different fructose levels HFCS 42%, 55% and 90% weight percent and is mainly used in the USA. Two methods to measure Brix and HFCS It is possible to measure the Brix and HFCS content either with a density meter or a refractometer
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Chemicals
Bromine Liquid
Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine.Molecular Formula: Br2SKU: n/a -
Chemicals
Bromine Water
Bromine water is a highly oxidizing intense yellow to red mixture containing diatomic bromine (Br2) dissolved in water (H2O). It is often used as a reactive in chemical assays of recognition for substances which react with bromine in an aqueous environment with the halogenation mechanism.
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Chemicals
Bromocresol Purple Indicator
Bromocresol purple or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family and a pH indicator. It is colored yellow below pH 5.2, and violet above pH 6.8. In its cyclic sulfonate ester form, it has a pKₐ value of 6.3, and is usually prepared as a 0.04% aqueous solution.SKU: n/a