ASA Flashcards
What is the primary invention described in the document?
A new and useful improvement in the manufacture or production of acetylsalicylic acid
This relates to a method of synthesizing acetylsalicylic acid more effectively.
What is the mixture ratio of salicylic acid to acetic anhydride in the described process?
50 parts of salicylic acid to 70 parts of acetic anhydride
At what temperature is the mixture heated during the production process?
About 150 degrees Celsius
What type of equipment is used in the described synthesis process?
A vessel provided with a reflux condenser
What is the melting point of the new compound obtained from the process?
About 135 degrees Celsius
How does the solubility of the new compound compare to the compound described by Kraut?
Easily soluble in benzene, alcohol, and glacial acetic acid; difficultly soluble in cold water
What happens when the new compound is boiled with water?
It is easily split into acetic acid and salicylic acid
True or False: The compound described by Kraut produces acetic acid when boiled with water.
False
What color does the solution of Kraut’s compound exhibit when mixed with ferric chloride?
Violet color
What is the distinguishing behavior of the new compound when mixed with ferric chloride?
Does not assume a violet color
What is claimed as new in the invention?
The acetylsalicylic acid having the formula C9H8O4, characterized by specific solubility and thermal properties
Fill in the blank: The new compound is obtained in the shape of _______.
white glittering needles
The new compound is substantially described as having what formula?
C9H8O4
What does the new compound split into when heated with water?
Acetic acid and salicylic acid
What are the therapeutic properties of the new compound?
Exhibits therapeutic properties as described in the document
What is the significance of the comparison between the new compound and Kraut’s compound?
To illustrate the differences in properties and confirm the novelty of the new compound
