Page:NIOSH Manual of Analytical Methods - 2549.pdf/4

 VOLATILE ORGANIC COMPOUNDS (SCREENING): METHOD 2549, Issue 1, dated 15 May 1996 - Page 4 of 8

TABLE 1. COMMON VOLATILE ORGANIC COMPOUNDS WITH MASS SPECTRAL DATA Compound /Synonyms

CAS# RTECS

Empirical Formula

MWa

BPb ( C)

VPc @ 25 C mm Hg kPa

Characteristic Ions, m/z

80.1

95.2

78*

Aromatic Hydrocarbons Benzene /benzol

71-43-2 CY1400000

C6H6

78.11

Xylene /dimethyl benzene

1330-20-7 ZE2100000

C8H10

106.7

12.7

91, 106*, 105

o-xylene

144.4

6.7

0.9

m-xylene

139.1

8.4

1.1

p-xylene

138.4

8.8

1.2

Toluene /toluol

108-88-3 XS5250000

C7H8

92.14

110.6

28.4

3.8

91, 92*

Aliphatic Hydrocarbons n-Pentane

109-66-0 RZ9450000

C5H12

72.15

36.1

512.5

68.3

43, 72*, 57

n-Hexane /hexyl-hydride

110-54-3 MN9275000

C6H14

86.18

68.7

151.3

20.2

57, 43, 86*, 41

n-Heptane

142-82-5 MI7700000

C7H16

100.21

98.4

45.8

6.1

43, 71, 57, 100*,41

n-Octane

111-65-9 RG8400000

C8H18

114.23

125.7

14.0

1.9

43, 85, 114*, 57

n-Decane /decyl hydride

124-18-5 HD6500000

C10H22

142.29

174

1.4

0.2

43, 57, 71, 41, 142*

Acetone /2-propanone

67-64-1 AL3150000

C3H6O

58.08

56

266

35.5

43, 58*

2-Butanone /methyl ethyl ketone

78-93-3 EL6475000

C4H8O

72.11

79.6

100

13

43, 72*

Methyl isobutyl ketone /MIBK, hexone

108-10-1 SA9275000

C6H12O

100.16

117

15

2

43, 100*, 58

Cyclohexanone /cyclohexyl ketone

108-94-1 GW1050000

C6H10O

98.15

155

2

0.3

55, 42, 98*, 69

Methanol /methyl alcohol

67-56-1 PC1400000

CH3OH

32.04

64.5

115

15.3

31, 29, 32*

Ethanol /ethyl alcohol

64-17-5 KQ6300000

C2H5OH

46.07

78.5

42

5.6

31, 45, 46*

Isopropanol /1-methyl ethanol

67-63-0 NT8050000

C3H7OH

60.09

82.5

33

4.4

45, 59, 43

Butanol /butyl alcohol

71-36-3 EO1400000

C4H9OH

74.12

117

4.2

0.56

56, 31, 41, 43

Ketones

Alcohols

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 5/15/96