GCMS analysis sample AD26538, unknown compounds, Dec 2001

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GC/MS analysis of sample AD26538 identified other unknown compounds noted in comments section, December 10, 2001.

NYC-WTC_000031889–000031904

Folder label: “GCMS X 11/7/01 A 12/6/01”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\HPCHEM\l\DATA\DEC0601\26538.D Vial: 13 Acq On 6 Dec 2001 9:06 pm Operator: GALOS Sample gc/ms unknown Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 3 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 2

R.T. EstConc Area Relative to ISTD R.T.

7.87 8.83 ng/uL 2462590 1,4-Dichlorobenzene-d4 11.89

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 43 3 2-Pentanone, 4-hydroxy- 4-methyl - 116 C6H1202 000123-42-2 38 4 Acetic acid, l-dimethylethyl este 116 C6H12O2 Abundance , 27 Scan 330 (7.866 min): 26538.D (-) — 28 000540-88-5 m/z 43.00 100.00% 48

5000 59

101 1 1 1 1 I ' 53.,.| 64 69 83 91 7.601 7.80 8.00 8.20 .................................. .. । ‘ ■ r1 * ■ ■ i1 ■ ■1 f1 *)tW| i . । । । . i i । ■ i “ । । i I ।i TPI m/z !59.1,0 47.41% miz-> 10 20 30 40 50I 60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 —t T — 59 7.60 7.80 8.00 18.20— m/z 58.10 15.71% 27 | i______ . 49 1 ■ ■ i ■ ■ ■ 1 l ■ ■ ■ ■ i ■ ■ ■ ■ I 1 1 ' 1 i 1 1 • 1 ■ • TIITT TIPTT . . TIT 83 101 m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #245. 2-Pentarone, 4-hydrxy-4-methyl- 43 —PP 'I 1 1 1 1 1 1 1 7.60 7.80 8.00 8.20 5000 59 m/z 101.05 15.57%

m/z-> Abundance

5000 31

43 73 83 ' 1 i ■ 1 TI ! • • 112—————— I 1 1 1 1 I ■ 1 ■ ' i • ■ ' 1 1—IIIr 10 ♦ 20 30 40 50 60 70 80 90 101

100 #64275: 2-Pentanone, 4-hydroxy-4-methyl- 110

m/z 7.60 41.10 1 7.80 8.00 TT-p-r-r-r 8.20 6.82%

59 15 ‘ ' i ■ ‘ | 31 I ‘ i ' ' • ' i ■ ‘ TTT 1 - ' I ■ Tdnnnnn/B—/n/n—n——Bn—n 83 101 CPAt TII—frr miz-> 10 20 30 40 50 60 70 80 90 100 110 7.60 7.80 8.00 8.20

26538.D NP112701.M Fri Dec 07 14:47:10 2001 Page 3

NYC-WTC_000031897

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NYC-WTC_000031897Source: NYC Law Department, mirrored locally

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GCMS comments for sample AD26710 detecting phthalate and tetrachloroethane · Box DEP Box 21

NYC-WTC_000032114

Analysis report dated December 31, 2001, identifying bis(2-Ethylhexyl)phthalate and 1,1,2,2-Tetrachloroethane in sample AD26710.

1 shared topics · Same agency, volume and box · similarity 0.998