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Wet chemistry is a form of analytical chemistry that uses classical methods such as observation to analyze materials. It is called wet chemistry since most analyzing is done in the liquid phase. Wet chemistry is also called bench chemistry since many tests are performed at lab benches
This type of chemistry includes basic experimentation techniques like measuring, mixing, and weighing chemicals, as well as testing concentration, conductivity, density, pH, specific gravity, temperature, viscosity, and other aspects of liquids. Analytical techniques in wet chemistry are usually qualitative in nature, meaning that they attempt to determine the presence of a specific chemical rather than the exact amount. Some quantitative techniques are used, however, and include gravimetrics (weighing) and volumetric analysis (measuring).
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Scope and Importance:
Wet Chemical analysis excludes all techniques that use instrumentation for quantitative analysis. Gravimetry (in which a chemical species is determined by weighing) and Titrimetry (which involves volume measurement of a liquid reactant) are two procedures that we use in our laboratory to perform Classical chemistry.
Most classical wet chemical methods can accommodate comparatively small amounts of a sample in diverse shapes or forms. It can also be applied to represent the Gross chemistry of moderately inhomogeneous material sample.
Wet chemistry may be used to "umpire" a traditional instrumental approach for accuracy. In addition to more conventional titration analysis, wet chemical analysis plays on important role in many other analytical applications including coating identification and wear metal identification.
Bench chemistry is sometimes used as a synonym for wet chemistry. The terms differ in two primary ways: first, bench chemistry can involve dry chemicals, while wet chemistry always involves at least one substance in the liquid phase; second, wet chemistry sometimes involves high tech equipment, while bench chemistry only includes techniques that use simple devices in keeping with the classical chemistry spirit. Both types of chemistry, however, do share many of the same techniques and equipment.
All the techniques include gravimetric, titrimetric or electrochemical strategies. Albeit fundamental in nature, the vast majority of the supplies uses machine frameworks to precisely and proficiently break down examples. These estimations give paramount ecological information; estimations that are principal in choice making for wastewater, effluents, and dirtied waters. The Wet Laboratory Section is outfitted with ph and conductivity meters, parities, spectrophotometers, and Lachat colorimetric analyzer. Lachat Colorimetric Analyser 1. Utilizations colour changes in the specimen to focus the amassing of every supplement. 2. Each one specimen is blended with a mix of reagents that structure a particular coloured compound for every supplement. 3. The shade's power connects to the measure of supplement present. Ion Chromatograph 1. The particle chromatograph differentiates by chromatography each one analyte so they can be identified separately. 2. The locator identies every analyte focused around maintenance time. 3. BOD (Biological Oxygen Demand) 4. The introductory broke down oxygen of the water specimen is measured and recorded. 5. The example is kept warm at a controlled temperature for five days. 6. The last disintegrated oxygen is measured and afterward deciphered as a representation of natural movement because of the loss of oxygen. COD (Chemical Oxygen Demand) 1. The example is processed and refluxed in a solid acidic arrangement with potassium dichromate. 2. The oxygen expended is measured against benchmarks at with a spectrophotometer. 3. The resultant measures shows the measure of oxidizable natural matter. TSS/NFR (Total Suspended Solids/Non-filterable Residue) 1. Examples are sifted through an a while ago weighed 0.45 micron channel. 2. In the wake of drying, the channel is weighed once more. The test outcome is the weight of the sifted material. 3. VSS (Volatile Suspended Solids). The channel and residue from a TSS/NFR is further dried at 500 degrees centigrade. 1. The resultant unstable deposit determined off is the VSS test outcome. 2. TDS (Total Dissolved Solids) 3. Similar to TSS/NFR aside from a 2 micron channel is utilized.
It also provides the platform for researchers, scholars and educators to present and discuss the most recent innovations, trends, and concerns, practical challenges encountered and the solutions adopted in the field of Chemical Science. The recent research in chemical science shares knowledge to scholars pursing their studies in this field.
The global market for wet chemistryproducts used in was worth an estimated $1.4 billion in 2010 and will grow at a compound annual growth rate (CAGR) of 9.7% during the next 5 years to reach a value of $2.2 billion in 2015.
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This page was last updated on 14th Sep, 2015
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