Sulphuric acid

Production of Neutral lipid from algae Basanti L. and Gautieri P., 2014 states that the source of oil from algae biomass are lipids, these are classified as fatty acids and fatty acids derivatives, like Triacylglycerol’s, Wax esters, Phospholipids, phosphoglycerides and sphingomyelin, Isoprenoids (based on isoprene structure).The type of algal lipids that are convertible to biodiesel is the neutral type like triglycerides cholesterol though other types are like galactolipids among others are also

magnesium/magnesium carbonate with sulphuric acid (,which I will be doing in this experiment). The chemical formula for Epsom salts is MgSO4.7H2O. I have also researched information on the two chemicals I will be using in this experiment; sulphuric acid and magnesium. Sulphuric acid is a clear, colourless, oily, and odourless liquid. Its chemical formula is H2 SO4. It is also known as battery acid, and hydrogen sulphate. In the United States more sulphuric acid is produced than any

a positive charge. Stage two Figure 2. Stage 2 of the nitration mechanism The second stage involved a hydrogensulphate ion, HSO4-, which was produced at the same time as the NO2+ ion. This removed a hydrogen from the ring to form sulphuric acid - the catalyst had therefore been regenerated. The electrons which originally joined the hydrogen to the ring were now used to re-establish the delocalised system. Table 1. Observations from the experiment proper Observations: 89 mL conc

an carboxylic acid, ethanoic acid, in a 50mL pear-shaped flask in the staff fume hood. An alcohol and carboxylic acid was added together as they undergo an oxidation reaction together that produces an ester as a result, in this case, 1-butyl-ethanoate. After this, the teacher added 1mL of concentrated sulphuric acid (H2SO4) into the pear-shaped flask to be used as a catalyst to increase the rate of reaction between the two reactions, 1-butanol and ethanoic acid. The sulphuric acid acts as a catalyst

Aim To prepare and purify an ester: 1-pentyl ethanoate, using pent-1-ol and ethanoic acid. An annotated reaction showing this reaction is shown below: Hazards Throughout the practical investigation, there were a variety of safety precautions implemented. This not only prevented physical injury, but allowed the efficient progress of the practical investigation in a safe manner. For instance, pentan-1-ol, the alcohol utilised to synthesis 1-pentyl ethanoate, is relatively flammable due to the

In the process of decaying of organic matter some bacteria will produces hydrogen sulphide as a waste product which will oxidise, forming so2. - Phytoplankton release dimethyl sulphide (DMS) into the atmosphere, when this is oxidised it forms sulphuric acid. NOx, natural: - Lightning activity generates high temperatures to allow oxygen and nitrogen to combine. Nitric oxide combines with oxygen in the presence of lightning. The no will then slowly combine with oxygen in the atmosphere to form no2

Mohammad Rezwan Ferdous AUENV 120 Dr Dee Patriquin September 15, 2017 Acid Rain and its Effects on the Environment in Western Canada Environmental Issue Sulphuric acid and nitric acid are the main acidic components of acid rain. Any sort of precipitation such as rain, snow, fog with these acidic components is called acid rain. Acid rain is an issue that has recently become intensified due to the increased burning of fossil fuels. Gaseous emission from vehicles and power plants are also responsible

acetate) through esterification of its alcohol and carboxylic acid components. This will require expert understanding and operation of reflux, isolation and distillation processes. Procedure Reflux Assemble apparatus for reflux as shown in figure 1. Begin pre-heating mantle. Measure and add 12mL of butan-1-ol and 9mL of ethanoic acid (glacial acetic acid) into a 50mL boiling flask. Add boiling chips. Slowly add 1mL of concentrated sulphuric acid. Reflux mixture for 30-40 minutes; ensure smooth boiling

CHAPTER 2 Materials and Methods 2.1. Chemicals Table 2.0. List of chemicals Chemicals Manufacturer/Country ABTS(2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) ) Sigma Aldrich Laboratories, Canada Ascorbic Acid Sigma Aldrich Laboratories, Canada Camphene Loba Chemie PVT Ltd, Mumbai Chloroform -GPR Fisher Scientific, UK Dichloromethane - GPR Alpha Chimie Industry (ACI), Tunisie Dichloromethane HPLC grade Merck Millipore, France Diphenylamine Sigma

production of aspirin begins salicylic acid which has been derived from the active site of salicin found in willow bark. This is done through multi-step process where substrates of salicin are converted into more basic products such as salicylic acid. Salicylic acid cannot be consumed by itself due to the fact that it is bitter and irritates the stomach causing side effects such as nausea and internal bleeding within the stomach. This is due to the fact that salicylic acid exists in protonated form in the