Preparation and Recrystallisation of Aspirin Contents Page Synopsis iii 1 Introduction 1 1.1 Objective 1 1.2 Background 1 2 Theory 1 3 Procedure 2 3.1 Materials 2 3.2 Preparation 2 3.3 Recrystallisation 3 3.4 Determination of Melting Point 3 4 Results and Calculation 4 4.1 Mass 4 4.2 Percent yield 4 4.3 Melting Point 4 4.4 Appearance 4 5 Discussion 5
SINGAPORE POLYTECHNIC SCHOOL OF CHEMICAL AND LIFE SCIENCES Diploma in Applied Chemistry with Pharmaceutical Science Organic Chemistry (CP4120/CP4502) Project Preparation and Recrystallisation of Aspirin. AY2010/2011 Name: XXXX Class: DACP 1B/02 Admin no.: P1234567 Table of Contents Page List of illustration
specific amount of salicylic acid into the same amount of aspirin that was high in purity. Furthermore, the other objectives were to enable students to conduct the synthesis of aspirin, reinforce skills or recrystallisation and the technique of melting point determination. The amount of each compound should be the same because there is a 1:1 ratio between them. The purity of the synthesized aspirin was measured by determining its melting point and percent yield. Soluble impurities increase the range
drugs. They parameter is particularly challenging when formulation a fast-dissolving oral films. Aqueous solubility of bi-layer: Water-soluble drugs pose various formulation challenges because they form eutectic mixtures, which result in freezing point depression and formation of a glassy solid that may collapse upon drying because of loss of supporting structure during the sublimation process. They collapse sometimes can be prevented by using various matrix formula forming excipients such as mannitol
contraceptives is the most common and the most serious A. B. C. D. E. Hypotension Hepatotoxicity Uterine neoplasia Thromboembolism disorder Decreased resistance to infection 49. A patient who has been taking quantities of aspirin might show increased post operative bleeding because aspirin inhibits** A. B. C. D. E. Synthesis of thromboxane A2 and prevents platelet aggregation Synthesis of prostacyclin and prevents platelet aggregation Synthesis of prostaglandin and prevents production of blood platelets
consumer behaviour Customer satisfaction Customer relationship management Marketing of services Rural marketing Types of marketing research Process of marketing research Tools and Techniques of marketing research Applications of marketing research Preparation of marketing research report Online marketing E-commerce Trends in marketing Page No. Marketing management – an introduction Unit structure: 1. Introduction 2. Learning Objectives 3. Marketing Management 3.1. Evolution of marketing management
Your Communication Skills 284 DID YOU KNOW?: The Minimum Wage Debate 267 Job Evaluation and the Pay Structure 267 Job Evaluation 267 Isolating Job Evaluation Criteria 268 Job Evaluation Methods 268 Ordering Method 268 Classification Method 268 Point Method 269 Chapter 12 Employee Benefits 286 Learning Outcomes 286 Introduction 288 Costs of Providing Employee Benefits 288 Contemporary Benefits Offerings 288 Establishing the Pay Structure 270 Contents ETHICAL ISSUES IN HRM: Domestic
not pin pointed the origin of the disease due to the fact that the illness, that we've dubbed A-2440, seemed to have popped up at hundreds of locations around the world all at once. It is not responsible or morally sound to make a conjecture at this point in time about the origin." While no government official will release any information about the disease or the riots, they have taken action to contain the disease and control the riots. The UN has its peacekeeping army deployed around the world
....................................................................................... 5 Examples of Good Reasoning............................................................................................................. 14 Review of Major Points ....................................................................................................................... 17 Glossary .................................................................................................................
competition, many organizations have reorganized around a philosophy of innovation, renewal, and organizational learning to survive. This philosophy suggests an organization that is flexible and project driven. Project management has developed to the point where it is a professional discipline having its own body of knowledge and skills. Today it is nearly impossible to imagine anyone at any level in the organization who would not benefit from some degree of expertise in the process of managing projects