Conservation Science Tutorials: Teas Charts Flashcards

1
Q

Bonds not usually affected by Solvents

A
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2
Q

Describe Solvents

A
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3
Q

What are Van der Walls Forces

A
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4
Q

Describe London Dispersion Forces

A

Despite the fact that these forces are small and transient there are millions of them present. They are the main bonds holding polythene together.

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5
Q

Van der Waals Forces (3)
D___ Forces
K_____ Interactions
Hydrogen Bonding

A
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6
Q

Describe Electronegativity

A
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7
Q

Diagram of the Periodic Table and Electronegativity

A
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8
Q
  1. Molecules that have either a permanent or transient dipole have inter-molecular forces that are important for solvent action.

True
False

A

True

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9
Q
  1. The following type of bond is most affected by solvents:

Metallic bonds
Covalent bonds
Bonds involving Van der Waals forces

A

Van der Waals

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10
Q
  1. In conservation work, the solvent used to remove stains or soften adhesives is always used in great excess to ensure complete removal.

True
False

A

False

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11
Q

Describe the three properties described by a Teas chart

A
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12
Q

Diagram showing how to calculate fractional perameters in a teas chart, and the sum of all 3

A
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13
Q

Diagram of a Teas Chart

A
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14
Q

Example Fractional Solubility Parameters

A
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15
Q

Effect of Functional Group on Teas chart

A
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16
Q

Describe ‘Like dissolves Like’

A
17
Q

How to work out fractional solubility parameters for mixes of solvents

A