UNIT 6B BTEC Applied Science
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Unit 6B
Aim:
To prepare phenyl benzoate from phenol in the laboratory.
Introduction:
Phenyl benzoate is a benzoate ester obtained by the formal condensation
of phenol with benzoic acid. It is a crystalline powder with a melting point of
68-70° C (lit.) and a boiling point of 298-299° C (lit.). Phenyl benzoate is an
organic compound which is used as a medication and insect repellent. As a
medication it is used to effectively treat scabies and lice.
Hypothesis:
The experiment will produce 2.11g of pure phenyl benzoate.
RISK ASSESSMENT FORM
Name of assessor: Najah Bendriss
Date: 10/06/2021
Activity:
Preparation of Phenyl benzoate from phenol.
Hazards
Glass
Sodium hydroxide (corrosive)
Benzoyl chloride (irritant)
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Phenol (toxic)
Risk
The glass might break and can lead to cutting or injury.
Sodium hydroxide is corrosive, can damage the skin.
Benzoyl chloride is irritant to eyes, skin and the respiratory system if
inhaled.
Phenol causes severe burns to the skin.
Those at risk
Students and the teacher as we were all in close contact with the hazards.
Control measures:
Handle glassware with care so they do not break.
Use of the following PPE:
Wear gloves to protect the skin from burns, corrosion, irritation, and
cuts from hazards such as glassware (flasks), and harmful chemicals
(sodium hydroxide and benzoyl chloride).
Wear safety goggles to prevent eye damage as a result of spillages or
accidentally rubbing the eyes after contact with harmful chemicals
such as sodium hydroxide.
Wear lab coats to protect skin and clothes from possible spillages of
harmful chemicals such as sodium hydroxide and benzoyl chloride.
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Distribution of this document is illegal extra per year?
assignment
written by
najbo123
www.stuvia.com
Downloaded by: najbo123 | Want to earn £756
Distribution of this document is illegal extra per year?
, Stuvia.co.uk - The Marketplace for Revision Notes & Study Guides
Unit 6B
Aim:
To prepare phenyl benzoate from phenol in the laboratory.
Introduction:
Phenyl benzoate is a benzoate ester obtained by the formal condensation
of phenol with benzoic acid. It is a crystalline powder with a melting point of
68-70° C (lit.) and a boiling point of 298-299° C (lit.). Phenyl benzoate is an
organic compound which is used as a medication and insect repellent. As a
medication it is used to effectively treat scabies and lice.
Hypothesis:
The experiment will produce 2.11g of pure phenyl benzoate.
RISK ASSESSMENT FORM
Name of assessor: Najah Bendriss
Date: 10/06/2021
Activity:
Preparation of Phenyl benzoate from phenol.
Hazards
Glass
Sodium hydroxide (corrosive)
Benzoyl chloride (irritant)
Downloaded by: najbo123 | Want to earn £756
Distribution of this document is illegal extra per year?
, Stuvia.co.uk - The Marketplace for Revision Notes & Study Guides
Phenol (toxic)
Risk
The glass might break and can lead to cutting or injury.
Sodium hydroxide is corrosive, can damage the skin.
Benzoyl chloride is irritant to eyes, skin and the respiratory system if
inhaled.
Phenol causes severe burns to the skin.
Those at risk
Students and the teacher as we were all in close contact with the hazards.
Control measures:
Handle glassware with care so they do not break.
Use of the following PPE:
Wear gloves to protect the skin from burns, corrosion, irritation, and
cuts from hazards such as glassware (flasks), and harmful chemicals
(sodium hydroxide and benzoyl chloride).
Wear safety goggles to prevent eye damage as a result of spillages or
accidentally rubbing the eyes after contact with harmful chemicals
such as sodium hydroxide.
Wear lab coats to protect skin and clothes from possible spillages of
harmful chemicals such as sodium hydroxide and benzoyl chloride.
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Distribution of this document is illegal extra per year?
