PCB's, Dioxins, and Furans

Question 1

Poly Chloro Biphenyls (PCBs)

Answer 1

two benzine rings joined by two carbons with any number of chlorine substiuants

Question 2

two benzine rings joined by two carbons with any number of chlorine substiuants

Answer 2

Poly Chloro Biphenyls (PCBs)

Question 3

Uses of PCB’s

Answer 3

used in lots of machines because it is a non-flamibe electrical insulator

Question 4

used in lots of machines because it is a non-flamibe electrical insulator

Answer 4

Uses of PCB’s

Question 5

Poly Chloro dibenzodioxins (PCDD’s or just Dioxins)

Answer 5

two benzene rings joined by a third ring with two oxygens, has any number of chlorine substituants

Question 6

two benzene rings joined by a third ring with two oxygens, has any number of chlorine substituants

Answer 6

Poly Chloro dibenzodioxins (PCDD’s or just Dioxins)

Question 7

sources of dioxins

Answer 7

have no use, but are often a byproduct of other processes

Question 8

have no use, but are often a byproduct of other processes

Answer 8

sources of dioxins

Question 9

naming PCB’s

Answer 9

the two joining carbons are #1. Then number the rest as would result in the lowest numbers, the ring with less chlorines get’s (‘) by it’s numbers. Always ends with (Number prefix)chlorobiphenyl

Question 10

the two joining carbons are #1. Then number the rest as would result in the lowest numbers, the ring with less chlorines get’s (‘) by it’s numbers. Always ends with (Number prefix)chlorobiphenyl

Answer 10

Naming PCB’s

Question 11

creating PCB’s

Answer 11

always created as a mixture, the amount of chlorine substiuants determines it’s viscosity

Question 12

always created as a mixture, the amount of chlorine substiuants determines it’s viscosity

Answer 12

creating PCB’s

Question 13

Naming Dioxins

Answer 13

choose one of te carbons not conected to the oxygens, but conected to carbons that are as #1. number the entire molecule, skipping the carbons bonded to oxygens. Number chlorines. Always ends with (Number prefix)chlorodibenzo (1,4) dioxin

Question 14

choose one of te carbons not conected to the oxygens, but conected to carbons that are as #1. number the entire molecule, skipping the carbons bonded to oxygens. Number chlorines. Always ends with (Number prefix)chlorodibenzo (1,4) dioxin

Answer 14

Naming dioxins

Question 15

chlorination (molecular weight) and lipophilicity

Answer 15

the more chlorines on a PCB, Dioxin, or Furan, the higher the Kow

Question 16

the more chlorines on a PCB, Dioxin, or Furan, the higher the Kow

Answer 16

chlorination (Molecular weight) and lipophilicity

Question 17

Systems that contain PCB

Answer 17

controlable closed systems and non-controllable closed systems

Question 18

controlable closed systems and non-controllable closed systems

Answer 18

systems that contain PCB

Question 19

the difference between controlable and non-controlable closed systems.

Answer 19

one system has enough PCB’s to be worth salvaging, the other doesn’t

Question 20

one system has enough PCB’s to be worth salvaging, the other doesn’t

Answer 20

the difference between controlable and non-controlable closed systems.

Question 21

effects of PCB’s, Dioxins, and furans in humans

Answer 21

Chloracne, cancer, mostly from Dioxins and Furans

Question 22

Chloracne, cancer, mostly from Dioxins and Furans

Answer 22

effects of PCB’s, Dioxins, and furans in humans

Question 23

Furans

Answer 23

chemicas formed when the right PCB’s are heated, two benzenes joined by a 5 member ring including an oxygen.

Question 24

chemicas formed when the right PCB’s are heated, two benzenes joined by a 5 member ring including an oxygen.

Answer 24

Furans

Question 25

Naming Furans

Answer 25

Follows a similar system to Dioxins, ends with Dibenzofuran

Question 26

Follows a similar system to Dioxins, ends with Dibenzofuran

Answer 26

Naming Furans

Question 27

Degredation of PCB’s

Answer 27

react with OH in the atmosphere

Question 28

react with OH in the atmosphere

Answer 28

Degredation of PCB’s

Question 29

degredation of Dioxins

Answer 29

have structures that are great for photodegredation through UV-B

Question 30

have structures that are great for photodegredation through UV-B

Answer 30

Degredation of Dioxins

Question 31

bioacumulation/biomagnification

Answer 31

Fat soluble compounds tend to hang out in organisms for a long time, they get more concentrated as you move up the food chain.

Question 32

Fat soluble compounds tend to hang out in organisms for a long time, they get more concentrated as you move up the food chain.

Answer 32

bioacumulation/biomagnification

Question 33

Rating toxicity of PCB’s Dioxins, and Furans

Answer 33

ranked compared to the toxicity of 2,3,7,8-TCDD. Planar compounds tend to be more toxic.

Question 34

ranked compared to the toxicity of 2,3,7,8-TCDD . Planar compounds tend to be more toxic.

Answer 34

Rating toxicity of PCB’s Dioxins, and Furans

Question 34

2,3,7,8-TCDD

Answer 34

The most toxic compound in the family, interacts with DNA and causes the bodie’s ensysmes to producce other toxins

Question 35

The most toxic compound in the family, interacts with DNA and causes the bodie’s ensysmes to producce other toxins

Answer 35

2,3,7,8-TCDD

Question 36

Half life/decay constant for a chemical

Answer 36

k’

Question 37

k’

Answer 37

Half life/decay constant for a chemical

Question 38

half life equation

Answer 38

0.693/k’

Question 39

0.693/k’

Answer 39

half life equation

Question 40

Lifetime Equation

Answer 40

1/k’

Question 41

1/k’

Answer 41

lifetime equation