What is the structure of benzophenone oxime?
Benzophenone oxime
| PubChem CID | 11324 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C13H11NO |
| Synonyms | Benzophenone oxime 574-66-3 Diphenylmethanone oxime Benzophenoxime Methanone, diphenyl-, oxime More… |
What is the role of sodium hydroxide in the oxime preparation?
If the carbonyl compound is insoluble in water, a hydroalcoholic solution is used to dissolve it. If sodium hydroxide is employed for liberating the free hydroxylamine from the hydrochloride, it is necessary to saturate the solution with carbon dioxide at the end of the reaction to precipitate the oxime.
What is the melting point of benzophenone oxime?
140°C to 144°C
Specifications
| Quantity | 5g |
|---|---|
| Color | White |
| Melting Point | 140°C to 144°C |
| Packaging | Glass bottle |
| CAS Min % | 97.5 |
Is benzophenone a structure?
Benzophenone is the organic compound with the formula (C6H5)2CO, generally abbreviated Ph2CO. It is a white solid that is soluble in organic solvents. Benzophenone is a widely used building block in organic chemistry, being the parent diarylketone.
What is benzophenone used for?
Benzophenone is used as an ultraviolet curing agent, flavour ingredient, fragrance enhancer and perfume fixative, and as an additive for plastics, coatings and adhesive formulations. Benzophenone is also used as a screen to prevent ultraviolet light-induced damage to cosmetics.
What is oxime with example?
The structure of oxime is a two-sided chain with a central atom consisting of carbon. The two side chains differ entirely from each other. Some examples of oximes include Aldicarb oxime, aldoxime, dimethylglyoxime, ketoxime, methoxime, etc.
Which pH is suitable for oxime formation?
When carrying out the reaction at 5 °C, the intermediate formation of the acetone-hydroxylamine adduct (2) was ob- served at pH 8.5, while at pH 10, the oxime (3) was formed almost instantly.
How do you identify benzophenone?
- Benzophenone appears as white solid with a flowery odor. May float or sink in water. (
- Benzophenone is the simplest member of the class of benzophenones, being formaldehyde in which both hydrogens are replaced by phenyl groups.
- Benzophenone is the organic compound.
Is benzophenone bad for skin?
The human health effects from skin exposure to low levels of BP-3 are unknown. Occasionally, wearing products containing BP-3 has resulted in a skin allergy or photo allergy, a skin reaction that occurs with exposure to sunlight. BP-3 has been shown to cause weak hormonal activity in laboratory animals.
Which is the correct reaction for benzophenone oxime?
HCl + NaOH Ethanol Water H 2 N OH + + NaCl H 2 O Hydroxylamine hydrochloride Hydroxylamine C O + H 2 N OH Ethanol Water C N OH + H 2 O Benzophenone Benzophenone Oxime REACTION: You can add any NH2 compound to any aldehyde or ketone using this reaction.
How to make benzophenone oxime with ethyl alcohol?
PROCEDURE 1. Weigh 1.00 g of benzophenone and 0.61 g of hydroxylamine hydrochloride in a tared 50 mL beaker. Transfer the solids to a clean 50 mL RBF using your powder funnel. 2. Add 15 mL of 95% ethyl alcohol (solvent) and 5.50 mL of a 20% sodium hydroxide solution to the RBF.
How to make benzophenone oxime in an ice bath?
Transfer the contents of the RBF to a 100 mL beaker and cool it in an ice bath. Add 10 mL of 3M hydrochloric acid until the pH is 1-2 (check with pH paper). Crude benzophenone oxime will precipitate. Stir for ~2 minutes while cooling in the ice bath.
How to make benzophenone from benzaldehyde and benzoic acid?
Once in hand, you could oxidize benzaldehyde to benzoic acid. An alternate approach would be to 1) brominate benzene to form bromobenzene, 2) form the Grignard reagent with magnesium and 3) react it with carbon dioxide to produce benzoic acid. In either case, with benzoic acid in hand, you can procede as you’ve indicated, on to benzophenone.
