Surfactants Flashcards

1
Q

Surfactants

A

chemicals that act along surfaces

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2
Q

chemicals that act along surfaces

A

Surfactants

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3
Q

micells

A

groups in spheres or rods formed by surfactants by turning all their negative ends away from water.

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4
Q

groups in spheres or rods formed by surfactants by turning all their negative ends away from water.

A

micells

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5
Q

anionic surfactant

A

a surfactant with a negatively charged head, like soap

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6
Q

a surfactant with a negatively charged head, like soap

A

Anionic surfactant

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7
Q

Nonionic surfactants

A

a surfactant with a polar, but not charged head

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8
Q

a surfactant with a polar, but not charged head

A

Nonionic Surfactants

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9
Q

cationic surfactant

A

a surfactant with a positively charged head, like conditioner or fabric softener

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10
Q

a surfactant with a positively charged head, like conditioner or fabric softener

A

cationic surfactant

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11
Q

Amphoteric surfactant

A

a surfactant where the head is a zwitterion, rarely used

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12
Q

a surfactant where the head is a zwitterion, rarely used

A

Amphoteric Surfactant

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13
Q

how soaps work

A

often the fabric/creature will be slightly negative, so as the non-polar ends attach to the dirt, the polar ends are repelled from the surface, pulling the dirt off.

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14
Q

often the fabric/creature will be slightly negative, so as the non-polar ends attach to the dirt, the polar ends are repelled from the surface, pulling the dirt off.

A

how soaps work

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15
Q

how conditioners and fabric softeners work

A

often the fabric/creature will be slightly negative, so the positive heads of the chemicals attach to it, and the long oily end lubricates it.

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16
Q

often the fabric/creature will be slightly negative, so the positive heads of the chemicals attach to it, and the long oily end lubricates it.

A

how conditioners and fabric softeners work

17
Q

type of surfactant best for organic fabrics

A

Anionic Surfactants

18
Q

type of surfactant best for synthetic fabrics

A

nonionic surfactants

19
Q

Builders

A

chemicals mixed into the surfactant to make it work more effectively, do things like remove the calcium from hard water

20
Q

chemicals mixed into the surfactant to make it work more effectively, do things like remove the calcium from hard water

21
Q

Builders that act by raising pH

A

carbonates and phosphorus compounds

22
Q

carbonates and phosphorus compounds

A

Builders that act by raising pH

23
Q

forms particles that act as builders by trapping unwanted ions in holes in the particle.

A

Zoillites, made of alluminum and sillicon

24
Q

Zoillites, made of alluminum and sillicon

A

forms particles that act as builders by trapping unwanted ions in holes in the particle.

25
Perborate Anion
a chemical that breaks down in warm water to form bleach
26
a chemical that breaks down in warm water to form bleach
Perborate Anion
27
SNOBS
a bleach capable of functioning at lower temperatures
28
a bleach capable of functioning at lower temperatures
SNOBS
29
Perborate anion structure
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30
SNOBS structure
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31
toxcisity of surfactants.
as the tails on anionic surfactants break down they become less toxic, the reverse is true for nonionic surfactants
32
as the tails on anionic surfactants break down they become less toxic, the reverse is true for nonionic surfactants
toxcisity of surfactants.
33
persistance of surfactants
Surfactants with heaviy branched tails take longer for bacteria to break down
34
Surfactants with heaviy branched tails take longer for bacteria to break down
persistance of surfactants
35
dissadvantage of using phosphate as a builder
more phosphate in the environment causes more microbe growth
36
more phosphate in the environment causes more microbe growth
dissadvantage of using phosphate as a builder
37
example of Anionic Surfactant
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38
Example of Nonionic surfactant
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39
Example of Cationic surfactant
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