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The 5-nitrosalicylic acid is synthesized by nitration(generates the intermediate 2-Chloro-5-nitrobenzoic acid, and hydrolysis(generates the target product) of o-chlorobenzoic acid. The influences of the nitration of temperature, proportion of mixed acid and of the hydrolysis of temperature, reaction time were investigated. The yield of nitration was 95.7% with a mixed acid of nitric acid : sulfuric acid = 9 : 1, in the course of 0 ℃ and 8h, and the yield of hydrolysis was 98.3% in the course of 140 ℃ and 16 h. The final product (HPLC≥99.8%) was obtained after recrystallizing by the proper ethanol solution.
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What type of preparation is used in acetic acid dilution?
Simply mix water and acetic acid to the desired concentration.
Industrial method of preparation of Fumaric Acid?
1. Maleic anhydride is hydrated. This produces maleic acid. 2. Maleic acid is isomerised in the presence of a catalyst. 3. Fumaric acid is produced. Easy as that! (Except the temperature and pressure have to be kept controlled throughout)
Why you use concentrated nitric acid in preparation of ammonium ferric sulphate?
Nitric acid being an oxidizing reagent help the oxidation of Fe(II) to Fe(III).
What gas is evolved in the preparation of the oxalato vanadium?
In the preparation of oxalato vanadium, carbon dioxide (CO₂) gas is evolved. This occurs during the reaction between oxalic acid and vanadium compounds, where the oxalic acid decomposes, releasing CO₂ as a byproduct. The evolution of this gas is a characteristic feature of the reaction.
Why boric acid is used in the preparation of pellets for EDXRF?
Boric acid is used in the preparation of pellets for energy dispersive X-ray fluorescence (EDXRF) analysis because it acts as a binder that helps hold the sample together. It improves the mechanical strength of the pellets, making them more durable during the analysis process. Additionally, boric acid also helps in reducing the background interference from the sample matrix, resulting in clearer and more accurate XRF spectra.
Process of preparation of benzoic acid?
Benzoic acid is produced from toluene and oxygen. The toluene is oxidyzed and a water molecule is released, which resuls in benzoic acid source: wikipedia
How do you make anthranilic acid?
preparation of anthranilic acid
Why hydrogen of COOH group is removed in preparation of methy salicylate from salicylic acid in the presence of sulphuric acid?
why hydrogen of COOH group is removed in the preparation of methyl salicylate from salicylic acid in the presence of sulphuric acid
Why Hcl uses in the preparation of boric acid?
Hydrochloric acid (HCl) is used in the preparation of boric acid because it reacts with borax (sodium borate) to release boric acid. The reaction between hydrochloric acid and borax allows for the precipitation of boric acid, which can then be collected and purified.
Why is sulphuric acid not used in preparation of carbondioxidei?
because sulphuric acid stops reaction
What element needed in preparation of sulfuric acid?
sulfur
What is sulfonation?
A sulfone contain the structure S(=O)2-R' where R' is an organic group.
What is the function of acetic acid in the preparation of para nitro acetanilide?
Acetic acid acts as a solvent in the preparation of para nitro acetanilide. It helps dissolve the reactants, making it easier for them to mix and react. Acetic acid also helps control the reaction conditions and stabilize intermediates formed during the synthesis process.
Why hcl don't used in preparation of methyl m nitrobenzoate?
HCl is not used in the preparation of methyl m-nitrobenzoate because the presence of a strong acid like HCl can lead to unwanted side reactions, such as hydrolysis or nitration of other functional groups on the molecule. Instead, a milder acid catalyst like sulfuric acid is typically used in these types of reactions to promote the esterification process efficiently.
What preparation process involves looking at the characteristics of the receivers of the message?
This preparation process involves looking at the characteristics of the receivers of the sender's message.
How does sulfuric acid catalyze the preparation of esters Could some other acid be used?
Sulfuric acid catalyzes the preparation of esters by protonating the carbonyl group of the carboxylic acid, making it more electrophilic for nucleophilic attack by the alcohol. Other strong acids like hydrochloric acid or phosphoric acid can also be used as catalysts for the esterification reaction, but sulfuric acid is preferred due to its strong acidity and low cost.
Preparation of pyruvic acid from tartaric acid?
Pyruvic acid can be prepared from tartaric acid through a process called pyrolysis, where tartaric acid is heated under controlled conditions to break down into pyruvic acid and other byproducts. The pyruvic acid can then be isolated and purified from the reaction mixture using various separation techniques.
