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preface to fifteenth edition

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SPECTROSCOPY 7.129<br />

TABLE 7.76<br />

Condensed Table of Mass Spectra (Continued)<br />

Mass numbers (and intensities) of:<br />

Molecular<br />

formula<br />

Name<br />

Parent<br />

peak<br />

Base<br />

peak<br />

Three next most intense peaks<br />

C 2 H 4 Cl 2 1,2-Dichloroethane 98(1.7) 62(12) 27(11) 49(4.9) 64(3.9)<br />

C 2 H 4 N 2 Diazoethane 56(16) 28(27) 27(25) 26(21) 41(5.2)<br />

C 2 H 4 O Ethanal (acetaldehyde) 44(30) 29(66) 43(18) 42(6.1) 26(6.1)<br />

C 2 H 4 O Ethylene oxide 44(30) 29(46) 15(30) 14(12) 43(7.1)<br />

C 2 H 4 O 2 Ethanoic acid (acetic) 60(19) 43(37) 45(33) 15(21) 14(8.0)<br />

C 2 H 4 O 2 Methyl formate 60(27) 31(96) 29(60) 32(33) 28(6.8)<br />

C 2 H 5 Br Bromoethane 108(35) 29(54) 27(48) 110(33) 26(16)<br />

C 2 H 5 Cl Chloroethane 64(36) 64(36) 28(32) 29(30) 27(27)<br />

C 2 H 5 F Fluoroethane 48(2.4) 47(24) 27(8.9) 33(8.2) 26(3.0)<br />

C 2 H 5 N Ethylenimine 43(31) 42(56) 28(44) 15(20) 41(11)<br />

C 2 H 5 NO 2 Nitroethane 75(0.0) 29(85) 27(74) 30(19) 26(11)<br />

C 2 H 5 NO 3 Ethyl nitrate 91(0.01) 46(95) 29(42) 30(29) 76(23)<br />

C 2 H 6 Ethane 30(26) 28(99) 27(33) 26(23) 29(21)<br />

C 2 H 6 O Ethanol 46(9.7) 31(63) 45(22) 29(14) 27(14)<br />

C 2 H 6 O Dimethyl ether 46(32) 45(71) 29(56) 15(41) 14(8.9)<br />

C 2 H 6 O 2 Dimethyl peroxide 62(28) 29(47) 31(45) 15(16) 30(12)<br />

C 2 H 6 S 2-Thiapropane 62(56) 47(69) 45(42) 46(29) 35(24)<br />

C 2 H 6 S Ethanethiol 62(44) 62(44) 29(43) 47(36) 27(35)<br />

C 2 H 6 S 2 2,3-Dithiabutane 94(95) 94(95) 45(59) 79(56) 46(34)<br />

C 2 H 6 S 3 2,3,4-Trithiapentane 126(54) 126(54) 45(32) 79(27) 47(19)<br />

C 2 H 7 N Aminoethane (ethylamine) 45(18) 30(96) 28(28) 44(19) 27(13)<br />

C 2 H 7 N N-Methylaminomethane 45(36) 44(71) 28(48) 15(14) 42(13)<br />

C 2 H 8 N 2 1,2-Diaminoethane 60(2.7) 30(111) 18(14) 42(6.9) 43(5.9)<br />

C 3 F 6 Hexafluoropropene 150(16) 31(56) 69(44) 131(41) 100(20)<br />

C 3 F 8 Octafluoropropane 188(0.0) 69(171) 31(49) 169(42) 50(16)<br />

C 3 H 3 N Propenenitrile 53(55) 26(55) 52(41) 51(18) 27(10)<br />

C 3 H 4 Propadiene 40(72) 40(72) 39(69) 38(29) 37(23)<br />

C 3 H 4 Propyne (methylacetylene) 40(79) 40(79) 39(73) 38(29) 37(22)<br />

C 3 H 4 ClN 3-Chloropropanenitrile 89(12) 49(68) 54(54) 51(29) 26(20)<br />

C 3 H 4 O Propenal (acrolein) 56(16) 27(25) 26(15) 28(13) 55(11)<br />

C 3 H 5 Cl 1-Chloro-1-propene 76(30) 41(70) 39(43) 40(10) 78(9.6)<br />

C 3 H 5 ClO 3-Chloro-1,2-epoxypropane 92(0.19) 57(55) 27(53) 29(40) 31(21)<br />

C 3 H 5 ClO 2 Methyl chloroacetate 109(0.23) 59(56) 49(44) 15(43) 29(37)<br />

C 3 H 5 Cl 3 1,2,3-Trichloropropane 146(0.71) 75(61) 110(22) 77(19) 61(18)<br />

C 3 H 5 N Propanenitrile 55(8.3) 28(83) 54(51) 26(17) 27(15)<br />

C 3 H 6 Cyclopropane 42(64) 42(64) 41(58) 39(44) 27(23)<br />

C 3 H 6 Propene 42(39) 41(58) 39(41) 27(22) 40(17)<br />

C 3 H 6 Cl 2 1,1-Dichloropropane 112(0.0) 63(27) 41(25) 77(22) 62(19)<br />

C 3 H 6 Cl 2 1,2-Dichloropropane 112(2.6) 63(51) 62(36) 27(29) 41(25)<br />

C 3 H 6 O 1-Propen-3-ol (allyl alc.) 58(12) 57(43) 29(34) 31(26) 27(19)<br />

C 3 H 6 O Propanal 58(25) 29(66) 28(46) 27(38) 26(14)<br />

C 3 H 6 O Propanone (ace<strong>to</strong>ne) 58(24) 43(85) 15(26) 27(5.9) 42(5.9)<br />

C 3 H 6 O 1,2-Epoxypropane 58(19) 28(44) 29(30) 27(28) 26(18)<br />

C 3 H 6 O 2 1,3-Dioxolane 74(3.1) 73(52) 43(36) 44(30) 29(30)<br />

C 3 H 6 O 2 Propanoic acid 74(27) 28(34) 29(28) 27(21) 45(19)<br />

C 3 H 6 O 2 Ethyl formate 74(5.8) 31(82) 28(60) 29(54) 27(36)<br />

C 3 H 6 O 2 Methyl acetate 74(22) 43(148) 29(16) 42(15) 59(8.4)<br />

C 3 H 6 O 3 Methyl carbonate 90(3.3) 15(93) 45(54) 29(43) 31(34)<br />

C 3 H 7 Br 1-Bromopropane 122(14) 43(94) 27(55) 41(47) 39(22)

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