Lab Chemical-60

Clear colourless liquid with a characteristic odour. Solubility: 30% solution in methanol is clear and colourless.

N HEXANE 99% FOR SYNTHESIS Incompatible with dinitrogen tetraoxide. Store in a cool and dry environment.

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Ninhydrin is most commonly used to detect fingerprints, as the terminal amines of lysine residues in peptides and proteins sloughed off in fingerprints react with ninhydrin. It is a white solid which is soluble in ethanol and acetone at room temperature.

The marker for a positive ninhydrin test is a deep blue colouration obtained in the solution. This reaction indicates the presence of amino acids, other amines and ammonia in the test sample.

One of the main uses of palmitic acid is in soaps because of its ability to help keep skin smooth. Palmitic acid is found in beeswax, which is a popular ingredient in personal care products. In cosmetics, palmitic acid is used in skin make-up to hide blemishes.

should be dissolved to prepare M/10 oxalic acid solution. 

On the other hand, 12.6 /4 = 3.15 g of crystals of oxalic acid should be dissolved in water and precisely 250 ml of the solution should be produced.

If anhydrous oxalic acid (COOH) is available then dissolve 4.5 g of the acid in one litre of distilled water to get 0.1 N oxalic acid solution. Add 13.16 g of NaOH (95% NaOH) in one litre distilled water and shake well.

Magnesium is an alkaline earth metal that has the symbol Mg in the periodic table of elements.

 In a powder, this metal heats and ignites when exposed to moisture and burns with a white flame

If small amounts of magnesium powder are burning, these may best be  Exposure Guideline: No exposure guidelines established for magnesium metal.

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Mercuric chloride is extremely toxic, both acutely and as a cumulative poison. Its toxicity is due not just to its mercury content but also to its corrosive properties, which can cause serious internal damage,including ulcers to the stomach, mouth, and throat, and corrosive damage to the intestines

Methyl chloroformate is used in organic synthesis for the introduction of the methoxycarbonyl functionality to a suitable nucleophile Methyl chloroformate, if heated, releases phosgene. It produces hydrogen chloride upon contact with water.

It will cause skin damage if in contact with skin.

A continuous process for producing high-purity methyl chloroformate, by reacting liquid methanol with an excess of phosgene at no more than 20° C.

N,N-Dimethyl-1,4-phenylenediamine oxalate (N,N-dimethyl-p-phenylenediamine hemioxalate salt, DPD) was used as reagent in a study to evaluate the catalytic effects of elemental sulfur nanoparticles on CrVI reduction.

The extensive range of chemical structures, wide range of abundances, and chemical instability of metabolites present in the metabolome pose major analytical challenges that are difficult to address with existing technologies.

Naphthalene is an aromatic hydrocarbon found in coal tar or crude oil. 

Naphthalene is used in the manufacture of plastics, resins, fuels, and dyes. 

It is also used as a fumigant insecticide that works by turning directly from a solid into a toxic vapor. This process is called sublimation.

Millon's reagent is prepared by dissolving mercuric nitrate in nitric acid, and then adding water to dilute it.

The reagent is used in Millon reaction test wherein few drops of the reagent are added to the 

test solution, and then heated gently to boiling

MILLONS REAGENT A red solution or precipitate that forms in heating is an indication that tyrosine is present (a positive result). 

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