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In what chemical state does catsup exsist | Cypress Semiconductor

In what chemical state does catsup exsist

 I was at dinner with my family and two of my adult children got into a discussion of whether catsups is a solid or a liquid.  I answered that it depended on the temperature, at 40 below it was a solid and at 50K degrees it was plasma.  They both rolled their eyes and refined the question. And asked, At ROOM TEMPURATURE is catsup a solid or liquid ?  I said that I thought is a glass, a non solid, non liquid amorphous material.  That answer made no one at the table happy.  So I have two questions for you.

  1. What chemical state is catsup at room temperature?
  2. Does your family have nerdy discussions like this when you all get together?

Comments

Bob Marlowe's picture

Catsup is a thixotropic liquid and
yes, we have nerdy discussions normally started by me.
Bob

Bob Marlowe's picture

Oh, yes, and when the headline is not a typo, I'm not willing to describe the state catsup exits me.

hli's picture

It's pseudo-plastic: solid if you keep it steady for a longer period, and it gets liquid if you shake it. (I learned a while ago that this discovery lead to the invention of non-dripping wall paint :). I usually try not to start nerdy discussions in my family - but I will happily do so with my friends :)

Bob Marlowe's picture

Now for my last comment on this tread: The question of frozen or plasma is not a question for a chemical state, that would be a question of the physical state where the nerd's additional remark would be something like "if it is plasma, is it still catsup?".
To give a chemical answer we should concider what the components of catsup are and what a characteristical property of the resulting mixture might be. Well, catsup consists of tomatoes, vinegar, sugar and some spices. The component vinegar will give the catsup the sour flavor which can be expressed as pH. So let's do some math to calculate the pH of catsup. (Nerdy, isn't it?).
pH= 1/2(pKs-log c) as many people know and pKs for acetic acid is 4.75 as Mrs. google would tell us. c is the concentration in mols/l, with a presumed vinegar concentration of 3.5% we would get with a molecular-weight of 60 a concentration of 0.58 mol/l. Inserted into the above formular results in a pH of about 2.5 which indeed is sour!

Yes, it proves primarily that even chemistry will need at least a bit of maths.
Bob

jvy's picture

Years and years ago I read a Scientific American article about non-newtonian fluids and it catsup was listed at one.

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