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1) Bakelite is obtained by the condensation reaction of phenol with formaldehyde. 2) It is a type of cross-link polymer.Bakelite is formed from the reaction of phenol and formaldehyde. Basically it is formed in two steps. In the first step formaldehyde reacts with phenol and produces o-Hydroxymethyl phenol. Then o-Hydroxy methyl phenol and phenol come together and form Bakelite.Bakelite is obtained from phenol by reacting with formaldehyde HCHO. It is step growth branched thermosetting co-polymer of phenol and formaldehyde.
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How is Bakelite prepared from phenol?
Bakelite is formed from the reaction of phenol and formaldehyde. Basically it is formed in two steps. In the first step formaldehyde reacts with phenol and produces o-Hydroxymethyl phenol. Then o-Hydroxy methyl phenol and phenol come together and form Bakelite.
Which of the following phenol reacts to form Bakelite?
Bakelite is obtained from phenol by reacting with formaldehyde HCHO. It is step growth branched thermosetting co-polymer of phenol and formaldehyde.
Bakelite is obtained from phenol by reaction with:
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What is Bakelite how is it obtained?
Bakelite is obtained when Novolac is allowed to undergo cross-linking in the presence of a cross-linking agent. In general, phenol taken in excess acts as the cross-linking agent.
How Bakelite is formed chemically?
A hard, infusible, and chemically resistant plastic, Bakelite was based on a chemical combination of phenol and formaldehyde (phenol-formaldehyde resin), two compounds that were derived from coal tar and wood alcohol (methanol), respectively, at that time.
How is Bakelite polymer prepared?
- Phenol and formaldehyde combined to form ortho and para hydroxy benzyl alcohols.
- Formation of Novolac takes place from hydroxy benzyl alcohol and a water molecule is removed from the process.
- Bakelite is formed from novolac.
Which of the following combination gives Bakelite?
Bakelite is a product of reaction between phenol and formaldehyde (methanal).
What happens when phenol reacts with pcl5?
When phenol reacts with phosphorus pentachloride, minor amount of chlorobenzene is formed.
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Bakelite is obtained from phenol by reacting with: – Toppr
Bakelite was the first plastic made from synthetic components. It is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol(C6 …
Bakelite – Wikipedia
Polyoxybenzylmethylenglycolanhydride, better known as Bakelite was the first plastic made from synthetic components.
Bakelite – Structure, Monomers, Preparation, Properties, Uses
Bakelite is the commercial name for the polymer obtained by the polymerization of phenol and formaldehyde. These are one of the oldest polymers …
Bakelite is obtained from phenol by reacting with – Tardigrade …
Acetaldehyde · Acetal · Formaldehyde · Chlorobenzene · Bakelite is obtained by the polymerisation of phenol and formaldehyde.
How is Bakelite synthesized Class 12?
It is synthesised by the heating of phenol [C6H5OH] and formaldehyde [HCHO] in the presence of a catalyst such as hydrochloric acid, zinc chloride, or the base ammonia.
What are the raw materials used to make Bakelite?
Answer: Raw material that is used to make bakelite is equal parts of phenol ( carbolic acid) and formaldehyde.
Formation of Bakelite || Reaction of phenol with formaldehyde || FSc part 2
Images related to the topicFormation of Bakelite || Reaction of phenol with formaldehyde || FSc part 2
What is the ratio of phenol to formaldehyde to produce Bakelite polymer?
Base-catalysed phenol-formaldehyde resins are made with a formaldehyde to phenol ratio of greater than one (usually around 1.5). These resins are called resoles.
How would you obtain phenol from aniline?
- Aniline is diazotized by treatment with nitrous acid (NaNO2 and HCl) under ice-cold conditions to form benzene diazonium chloride.
- The step is followed by hydrolysis with dilute sulphuric acid to form phenol.
What kind of polymer is Bakelite?
Bakelite is also known as phenol formaldehyde resin and it is a type of condensation polymer.
Which of the following compound is used to prepared Bakelite resine acetaldehyde ethanol phenol methyl amine?
phenol is a compound used to prepare bakelite resin.
What is made from urea formaldehyde?
Urea-formaldehyde is pervasive. Examples include decorative laminates, textiles, paper, foundry sand molds, wrinkle-resistant fabrics, cotton blends, rayon, corduroy, etc. It is also used as wood glue. UF was commonly used when producing electrical appliances casing (e.g. desk lamps).
What is phenol functionality?
The functionality of phenol is about the chemical reactivities of C atoms, not the three double bonds. However, phenol is a weak acid but a dangerous chemical compound. It can be reactive through electrophilic sub reactions with some compounds, like halogenation.
How is phenol-formaldehyde prepared?
Phenol formaldehyde (PF) resin is a polymer condensate obtained from the condensation reaction between phenol and formaldehyde in the presence of an alkaline catalyst [1-7]. PF resin is usually synthesized with formaldehyde (liquid formalin) instead of paraformaldehyde (powder) [2, 7, 8-12].
Which phenol is used in preparation of phenol-formaldehyde resin?
Phenol formaldehyde Resin or PF are synthetic high polymers. We can produce PF by the reaction with phenol and substituted phenol with formaldehyde.
bakelite is obtained from phenol by reacting with
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What is the formula of phenol-formaldehyde resin?
Phenol-formaldehyde resin | C8H6O2 – PubChem.
How do you make nylon 66?
Solution : Nylon – 6,6 can be prepared by mixing equimolar adipic acid and hexamethylene – diamine to form a nylon salt which on heating eliminate a water molecule to form amide bonds.
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