样品

元素

理论值%

实验值%

误差%

C₁₉H₁₆N₄

N

31.08

31.21

31.14

+0.13

+0.06

C

59.97

60.11

59.98

+0.14

+0.01

H

8.95

8.81

8.94

-0.14

-0.01

双氰胺

C₂H₄N₄

N

66.60

66.58

66.73

66.36

66.59

66.70

66.52

-0.02

+0.13

-0.24

-0.01

+0.10

-0.08

C

28.54

28.68

28.69

28.52

28.58

28.65

28.61

+0.14

+0.15

-0.02

+0.04

+0.11

+0.07

H

4.76

4.83

4.83

4.79

4.80

4.80

4.77

+0.07

+0.07

+0.03

+0.04

+0.04

+0.01

C₂₂H₂₂N₁₀

N

32.84

32.64

32.55

-0.20

-0.29

C

61.96

62.02

62.18

+0.06

+0.22

H

5.20

5.20

5.22

0.00

+0.01

硫脲

CH₄N₂S

N

36.78

36.87

36.90

36.66

36.87

36.65

36.88

+0.09

+0.12

-0.12

+0.09

-0.13

+0.10

C

15.76

15.92

15.86

15.84

15.91

15.85

15.86

+0.16

+0.10

+0.08

+0.15

+0.09

+0.10

H

5.25

5.31

5.29

5.25

5.27

5.25

5.24

+0.06

+0.04

0.00

+0.02

0.00

-0.01