Impurities in NMR (chloroform)

Question 1

water in NMR

Answer 1

1.56, s

Question 2

acetone in NMR

Answer 2

2.17, s

Question 3

chloroform in NMR

Answer 3

7.26, s

Question 4

TBME in NMR

Answer 4

1.19, s, 3.22, s

Question 5

ethyl acetate in NMR

Answer 5

1.26, t, 2.05, s, 4.12, q

Question 6

tetrahydrofuran in NMR

Answer 6

1.85, m, 3.76, m

Question 7

methanol in NMR

Answer 7

1.09, s (may be absent), 3.49, s

Question 8

ethanol in NMR

Answer 8

1.25, t, 1.32, s (may be absent), 3.72, q

Question 9

dichloromethane in NMR

Answer 9

5.32, s

Question 10

grease or alkanes in NMR

Answer 10

.86, m, 1.26, m