Detergent structures (1 Viewer)

[Frie]

What's the structure for anionic detergent head, some of my notes say its O-SO₂-O^- but others say its SO₃^-? There is a benzene ring before the sulfonate group in each case.

Also unsure about structure of non-ionic detergents.

How would you describe the structure of non-ionic in an exam?

 

[hamstar]

What's the structure for anionic detergent head, some of my notes say its O-SO₂-O^- but others say its SO₃^-? There is a benzene ring before the sulfonate group in each case.

Also unsure about structure of non-ionic detergents.

How would you describe the structure of non-ionic in an exam?

This detergent differs from both anionic and cationic surfactants, in the sense that the molecules are actually uncharged. This group has a polar head rather than an ionic head. Alcohol (OH) and ethoxy (CH2-CH2-O) serves as the functional group of it's head and is polar.

 

[hamstar]

What's the structure for anionic detergent head, some of my notes say its O-SO₂-O^- but others say its SO₃^-? There is a benzene ring before the sulfonate group in each case.

Also unsure about structure of non-ionic detergents.

How would you describe the structure of non-ionic in an exam?

I would say these types of detergents have a negatively charged head. Benzene sulfonate is the common negative charged head of the synthetic anionic detergents.

O-SO₂-O^- is the same as O-SO₃^-

So i guess both of them would work

 

[Frie]

I would say these types of detergents have a negatively charged head. Benzene sulfonate is the common negative charged head of the synthetic anionic detergents.

O-SO₂-O^- is the same as O-SO₃^-

So i guess both of them would work

So it's O-SO₂-O^- not SO₃^-? I think you read the options wrong, one has 4 oxygens the other 3.

 

[Frie]

So when I draw it would it look like

Um.. don't know why the picture came out so large.. found on wiki

And u just replace the R with a hydrocarbon chain (zig-zag line) + benzene ring.

Would that be fine?