STANFORD TGO DATA TABLE

May 23, 2008

DISCLAIMER

The information contained within this table is for use by Stanford University personnel only. This information is not provided as advice, opinion, or statement of fact and is not provided for use in any way outside of Stanford University. Any use of the information within this table, except by Stanford University personnel, is at the risk of the user only.

WARNING

If you use or handle a liquid or solid material as a gas, consult with the University Chemical Hygiene Officer at EH&S (723-0448) to determine if the material is regulated under TGO.

If you use or handle a liquid or solid material as a gas, consult with the University Chemical Hygiene Officer at EH&S (723-0448) to determine if the material is regulated under TGO.

Santa Clara County Toxic Gas Ordinance regulates materials (i.e. gases, liquids and solids) if the material falls under the definition of Class I, Class II or Class III material and meets either of the following criteria:

(1) It is shipped in compressed gas cylinders, and the material is or becomes or acts as a gas upon release at normal temperature and pressure (70F and 760 mm Hg) or;

(2) The material is used or handled as a gas whether or not the material meets the definition of a compressed gas in Article 2 of the TGO or 49 CFR Section 173.300(a).

Gasses that meet the definition of a toxic gas are highlighted below.

Click here for a PDF version.

        Molar Percentage
GDN# State Name CAS Number VP MW Tox Type LC50 -units in ppm unless otherwise noted. TGO Class (Pure)  Diluted to Diluted to Diluted to Storage Data Source
Class 2 Class 3 Not Regulated  Group
1955 G 1,1,1-TRIFLUOROACETONE 421-50-1          NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
2968 G 1,1-DIFLUOROETHANE 75-37-6 760 66.05 LC50, MOUSE 1686848 NR       L  
2969 G 1,1-DIFLUOROETHYLENE 75-38-7 760 64.04 LCLO, RAT 2560000 NR       L  
3025 G 1,2-DICHLOROTETRAFLUOROETHANE 76-14-2 760 170.9 IDLH 150000 NR       G  
175 G 1,2-DIFLUOROETHYLENE     64.04 LCLO, RAT 2560000 NR       L  
674 G 1,3-BUTADIENE 106-99-0 760 54.09 LC50, RAT 220000 NR       L  
12977 G  1,3-HEXAFLUOROBUTADIENE  685-63-2  760 162 LC50, RAT  1334 II   44.46 26.67 G  MSDS from Matheson Tri-Gas
673 G 1-BUTENE 106-98-9 760 56.11     NR       L Asphyxiant. No LC or IDLH data available.
13714 G 1-CHLORO-1,1,2,2-TETRAFLUOROETHANE (HCFC-124A) 354-25-6   136.5 LC50, RAT 219095.8 NR       L  
13715 G 1-CHLORO-1,1-DIFLUOROETHANE (HCFC-142B) 75-68-3   100.5 LC50, RAT 499955.2 NR       L  
6080 G 2,2-DIMETHYLPROPANE 463-82-1 760 72.15 LCLO, MOUSE 17339020 NR       L  
13076 G  2-BUTENE, MIXED ISOMERS  107-01-7  760 56.11 LC50, RAT 690 mg/l/h NR         L  RTECS- EM2932000
13770 G 2-CHLORO-1,1,1,2-TETRAFLUOROETHANE (HCFC-124) 2837-89-0   136.5 LC50, RAT 285000 NR       J TGO Class Assigned by CIH
13771 G 2-CHLORO-1,1,1-TRIFLUOROETHANE 75-88-7   118.5 LC50, RAT 285000 NR       J TGO Class Assigned by CIH
13772 G 2-CHLORO-1,1,2-TETRAFLUOROETHANE (HCFC-124) 2837-89-3     LC50, RAT 285000 NR       J TGO Class Assigned by CIH
4645 G 2-METHYLPROPANE 75-28-5 760 58.12 LC50, RAT 285000 NR       L  
907 G 2-METHYLPROPENE 115-11-7 760 56.11 LC50, RAT 541657.4 NR       L  
13800 G 3-METHYL-1-BUTENE 563-45-1   70.14     NR       L Asphyxiant. No LC or IDLH data available.
2945 G ACETALDEHYDE 75-07-0 740 44.05 IDLH 20000 NR       X  
2316 G  ACETYL FLUORIDE  557-99-3  760 62 LC50, MOUSE  2.50 mg/l/h   II    8.32 4.99 D  AP2800000, no LC50 rat data.
2923 G ACETYLENE 74-86-2 760 26.04     NR       L Asphyxiant. No LC or IDLH data available.
11798 G ACETYLENE-D2 N/A 760 28.06     NR       L Asphyxiant. No LC or IDLH data available.
2017 G ALLENE 463-49-0 760 40.07     NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
3060 G  AMMONIA GAS  7664-41-7  760 17.03 LC50, RAT  4000 III          79.99 A  UNIDOCS UN-015
1284 G  AMMONIA-15N  13767-16-3  760 18.02 LC50, RAT  4000 III         79.99 A   
11799 G  AMMONIA-D3  13550-49-7 760 20.06 LC50, RAT  4000 III          79.99 A  Ammonia data used
4225 G  ANTIMONY HYDRIDE  7803-52-3  760 124.8 LC50, RAT  20 I  10 0.67 0.4 B     
5572 G ARGON, GAS 7440-37-1 760 39.95     NR       G Asphyxiant. No LC or IDLH data available.
12582 G ARGON, LIQUEFIED 7440-37-1 760 39.95     NR       G Asphyxiant. No LC or IDLH data available.
12123 G  ARSENIC PENTAFLUORIDE  7784-36-3  760 169.9 LC50, RAT  20 I  9.99 0.66 0.39 E     
6074 G  ARSINE  7784-42-1  760 77.95 LC50, RAT  20 I  9.99 0.66 0.39 X  UNIDOCS UN-015
36 L BETA-DIPHENYLPHOSPHINOETHYLTRIETHOXYSILANE  18586-39-5                  G  No LC or IDLH data available. 
12976 G  BIS(TRIFLUOROMETHYL)PEROXIDE  927-84-4  760 170 LC50, RAT  10 I  5 0.33 0.2 E     
  G BORON TRIBROMIDE 10294-33-4     LC50, RAT  380 II         UNIDOCS UN-015
5192 G  BORON TRICHLORIDE  10294-34-5  760 117.2 LC50, RAT  2541 II      84.7 50.82 E     
6208 G  BORONTRIFLUORIDE, GAS  7637-07-02 760 67.81 LC50, RAT  806 II      26.87 16.12 E  UNIDOCS UN-015
3102 L BROMINE 7726-95-6 760   LC50, RAT  113 I 56.49 3.76 2.25 E  UNIDOCS UN-015
13884 G  BROMINE CHLORIDE  13863-41-7     115.4 LC50, RAT  290 II      9.67 5.8 E     
10207 G BROMOCHLORODIFLUOROMETHANE 353-59-3 760 165.4 LC50, RAT 100000 NR       G  
2921 G  BROMOMETHANE  74-83-9  760 94.94 LC50, RAT  811.14 II      27.03 16.22 L  RTECS -PA4900000
13887 G BROMOTRIFLUORETHYLENE 598-73-2   160.9     NR       B TGO Class Assigned by CIH. No LC or IDLH data available.
2990 G BROMOTRIFLUOROMETHANE 75-63-8 760 148.9 LC50, RAT 42000 NR       G  
672 G  BUTANE 106-97-8  760 58.12 LC50, RAT  5555 NR            L    
6651 G CARBON DIOXIDE, (SOLID) 124-38-9 760 44.01 IDLH 400000 NR       G  
4530 G CARBON DIOXIDE, GAS 124-38-9 760 44.01 IDLH 400000 NR       G  
2667 G  CARBON MONOXIDE, GAS  630-08-0  760 28.01 LC50 RAT 3760 III          75.2 L  UNIDOCS UN-015
9623 G  CARBON MONOXIDE, LIQUEFIED  630-08-0  760 28.01 LC50 RAT 3614 III          72.27 L  RTECS - FG3500000  
11821 G  CARBON MONOXIDE-18O  4906-87-0 760 30.03 LC50 RAT 3614 III          72.27 L  RTECS - FG3500000
2997 G CARBON TETRAFLUORIDE 75-73-0 760 88.01 LCLO, RAT 4475000 NR       G  
11010 G  CARBON-13C MONOXIDE  1641-69-6  760 29.02 LC50, RAT  3760 III          75.2 L     
103 G  CARBONYL CHLOROFLUORIDE  353-49-1  760 82.46         II      53.33 32 L  TGO Class Assigned by CIH. No LC or IDLH data available. 
1870 G  CARBONYL FLUORIDE  353-50-4  760 66.01 LC50, RAT  360 II      12 7.2 L     
12894 G  CARBONYL SULFIDE  463-58-1  760 60.07 LC50, RAT  2140 II      71.33 42.79 D  RTECS -FG6400000
509 G  CHLORINE DIOXIDE, GAS  10049-04-4  760 67.45 LC50, RAT  250 II      8.33 5 E  UNIDOCS UN-015
13919 G  CHLORINE MONOXIDE  7791-21-1     67.45         I  50 3.33 2 J  TGO Class Assigned by CIH. No LC or IDLH data available. 
9478 G  CHLORINE TRIFLUORIDE  7790-91-2  760 92.45 LC50, RAT  299 II      9.97 5.98 E  UNIDOCS UN-015
9624 G  CHLORINE, (LIQUEFIED)  7782-50-5  760 70.91 LC50, RAT  293 II      9.77 5.86 E  UNIDOCS UN-015  
3158 G  CHLORINE, GAS  7782-50-5  760 70.91 LC50, RAT  293 II      9.77 5.86 E  UNIDOCS UN-015  
13922 G CHLOROFLUOROMETHANE 593-70-4   68.48     NR       J TGO Class Assigned by CIH. No LC or IDLH data available.
2924 G CHLOROMETHANE 74-87-3 760 50.49 LC50, RAT 8300 NR       L  
13926 G CHLOROTETRAFLUOROETHANE 63938-10-3   136.5     NR       J TGO Class Assigned by CIH. No LC or IDLH data available.
3312 G  CHLOROTRIFLUOROETHYLENE  79-38-9  760 116.5 LC50, RAT  2000 II     66.67 40 L    
12584 G CHLOROTRIFLUOROMETHANE 75-72-9 760 104.5     NR       G Asphyxiant. No LC or IDLH data available.
5367 G CIS-2-BUTENE 590-18-1 760 56.11     NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
6133 G  CYANOGEN  460-19-5  760 52.04 LC50, RAT  350 II      11.67 7 C   
2109 G  CYANOGEN CHLORIDE  506-77-4  760 61.48 LC50, RAT  1.2 mg/l/h I  59.99 3.99 2.39 C  RTECS- GT2275000
2954 G CYCLOPROPANE 75-19-4 760 42.08 LC50, RAT 220000 NR       L  
12045 G  DEUTERIUM BROMIDE, GAS  13536-59-9  760 81.93 IDLH  300 II      10 6 E   
3079 G  DEUTERIUM CHLORIDE, GAS  5/7/7698 760 37.47 LC50, RAT  3120 III        62.4 E   
11800 G  DEUTERIUM SULFIDE  13536-94-2  
32 G DEUTERIUM, GAS 7782-39-0 760 4.032     NR       L Asphyxiant. No LC or IDLH data available.
1842 G  DIAZOMETHANE  334-88-3  760 42.04 IDLH  20 I  10 0.67 0.4 J     
4219 G  DIBORANE  19287-45-7  760 27.67 LC50, RAT  80 I  40 2.67 1.6 B  UNIDOCS UN-015
2988 G DIBROMODIFLUOROMETHANE 75-61-6 620 209.8 LC50, RAT 27000 NR       L  
2996 G  DICHLOROACETYLENE  7572-29-4  760 94.92 LC50, MOUSE  45.6 I  22.79 1.51 0.91 K  RTECS - AP1080000
2995 G DICHLORODIFLUOROMETHANE 75-71-8 760 120.9 LC50, MOUSE 3867435 NR       J  
6125 G DICHLOROFLUOROMETHANE 75-43-4 760 102.9 LC50, RAT 99800 NR       G  
442 G  DICHLOROSILANE  4109-96-0  760 101 LC50, RAT  314 II     10.47 6.28 B  UNIDOCS UN-015  
1060 G DIMETHYLAMINE GAS 124-40-3 760 45.09 LC50, RAT 11120.7 NR       A  
12983 G  DIMETHYLSILANE  111-74-6  760 60.16       NR           L   
4427 L DIPHOSGENE  503-38-8  760 197.8 LC50, RAT  121.13 I  60.56 4.03 2.42 J  MSDS from ChemWatch.
4644 G ETHANE, (LIQUEFIED) 74-84-0 760 30.07     NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
4643 G ETHANE, GAS 74-84-0 760 30.07     NR       L Asphyxiant. No LC or IDLH data available.
5912 G ETHRANE 13838-16-9 760 184.5 LC50, RAT 24248.7 NR       J  
13218 G ETHYL ACETYLENE 107-00-6 760 54.09     NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
2938 G ETHYL CHLORIDE 75-00-3 760 64.52 LC50, RAT 81659.7 NR       L  
12979 G ETHYL FLUORIDE 353-36-6 760 48.07 LCLO, RAT 5200000 NR       L  
13431 G  ETHYL NITRITE  109-95-5     75.07 LC50, RAT  320 II     10.67 6.4 K    
11801 G ETHYL-D5-AMINE   760 50.13 LC50, RAT 5540 NR       A  
5981 G ETHYLENE 74-85-1 760 28.05     NR       L Asphyxiant. No LC or IDLH data available.
2956 G  ETHYLENE OXIDE  75-21-8  760 44.05 LC50, RAT  4350 III        87 L  UNIDOCS UN-015  
12980 G  ETHYLSILANE  2814-79-1  760 60.17       NR       L  MSDS from Sigma Aldrich.
4577 G  FLUORINE  7782-41-4  760 38 LC50, RAT  185 I  92.5 6.17 3.7 E  UNIDOCS UN-015
13075 G FLUOROMETHANE 593-53-3 760 34.04     NR       L Asphyxiant. No LC or IDLH data available.
9627 G  FORMALDEHYDE, GAS  50-00-0  760 30.03 LC50, RAT  0.66 I  0.32 0.02 0.01 L  RTECS LP8925000
3026 G FREON 115 76-15-3 760 154.5 LC50, RAT 1548635 NR       G  
4220 G  GERMANIUM HYDRIDE or GERMANE 7782-65-2  760 76.6 LC50, RAT  622 II   20.73 12.44 B  UNIDOCS UN-015
6653 G HELIUM, (LIQUEFIED) 7440-59-7 760 4     NR       G Asphyxiant. No LC or IDLH data available.
6169 G HELIUM, GAS 7440-59-7 760 4.003     NR       G Asphyxiant. No LC or IDLH data available.
3433 L HEXACHLORO-1,3-BUTADIENE  87-68-3  760 260.7 LC50, RAT  118.15 I  59.07 3.93 2.36 D  RTECS EJ0700000
12978 G HEXAFLUORO-2-BUTYNE 692-50-2 760 162     NR       L Asphyxiant. No LC or IDLH data available.
5461 G  HEXAFLUOROACETONE  684-16-2  760 166 LC50, RAT  422.67 II     14.08 8.45 J  RTECS UC2450000
5463 G  HEXAFLUOROCYCLOBUTENE  697-11-0  760 162      NR            L     
7178 G HEXAFLUOROETHANE 76-16-4 760 138 LC50, RAT 282842.7 NR       G  
5464 G  HEXAFLUOROPROPENE  116-15-4  760 150 LC50, RAT  19.8 mg/l/h  II      65.99 39.59 J  RTECS UD0350000
4532 G  HYDROGEN BROMIDE, GAS  10035-10-6  760 80.92 LC50, RAT  2860 II      95.33 57.2 F UNIDOCS UN-015
4535 G  HYDROGEN CHLORIDE, GAS  7647-01-0  760 36.46 LC50, RAT  2810 II       93.67 56.2 F UNIDOCS UN-015
6166 G  HYDROGEN CYANIDE, GAS  74-90-8  741 27.03 LC50, RAT  40 I  20 1.33 0.8 C  UNIDOCS UN-015
4525 G  HYDROGEN FLUORIDE GAS  7664-39-3  760 20.01 LC50, RAT  1300 II      43.33 26 F UNIDOCS UN-015
1209 G HYDROGEN GAS 1333-74-0 760 2.016     NR       L Asphyxiant. No LC or IDLH data available.
7833 G  HYDROGEN IODIDE, ANHYDROUS GAS  10034-85-2  760 127.9 LC50, RAT  2860 II     95.33 57.2 F    
4221 G  HYDROGEN SELENIDE GAS  7783-07-5 760 80.98 LCLO, RAT  2 I  0.99 0.06 0.03 B UNIDOCS UN-015
3168 G  HYDROGEN SULFIDE  7783-06-4 760 34.08 LC50, RAT  712 II   23.73 14.24 L  UNIDOCS UN-015
12046 G HYDROGEN, (LIQUEFIED) 1333-74-0 760 2.016     NR       L Asphyxiant. No LC or IDLH data available.
11797 G HYDROGEN-DEUTERIUM (1:1) N/A 760 3.024     NR       L Asphyxiant. No LC or IDLH data available.
2018 G  KETENE  463-51-4  760 42.04 LCLO, MOUSE  16.1 I 8.04 0.53 0.32 B  RTECS OA7700000, 5 ppm (IDLH)
5031 G KRYPTON 7439-90-9 760 83.8     NR       G Asphyxiant. No LC or IDLH data available.
6399 G METHANE 74-82-8 760 16.04     NR       L Asphyxiant. No LC or IDLH data available.
6143 G  METHANETHIOL  74-93-1  760 48.11 LC50, RAT  1350 II      45 27 L   
  G METHYL BROMIDE 74-83-9 760   LC50, RAT  1007 II         UNIDOCS UN-015
24968 G  METHYL CHLOROSILANE  993-00-0     80.6 LC50, RAT  600 II     20 12 J   
906 G METHYL ETHER 115-10-6 760 46.1 LC50, RAT 163754.5 NR       L  
2620 L METHYLISOCYANATE 624-83-9     LC50-RAT 22 I 10.99 0.73 0.43 B UNIDOCS- UN-015
    METHYL MERCAPTAN 74-93-1 760   LC50-RAT 1350 II         UNIDOCS- UN-015
11806 G  METHYL VINYL ETHER  107-25-5  760 58.08     NR           L   
5519 G METHYLAMINE, ANHYDROUS 74-89-5 760 31.06 LC50, RAT 7010 NR       A  
12981 G  METHYLSILANE  992-94-9  760 46.15      NR            L   
5927 G MONOETHYLAMINE, ANHYDROUS 75-04-7 760 45.09 LC50, RAT 16000 NR       A  
5319 L MUSTARD GAS  505-60-2  760 159.1 LC50, RAT  1.72 I  0.85 0.05 0.03 J  RTECS - WQ0900000
10406 G NATURAL GAS N/A 760 50     NR       L Asphyxiant. No LC or IDLH data available.
5571 G NEON 1/9/7440 760 20.18     NR       G Asphyxiant. No LC or IDLH data available.
1240 L NICKEL CARBONYL 13463-39-3 760   LC50, RAT  18 I 8.99 0.59 0.35 B UNIDOCS UN-015
4528 G NITROGEN 7727-37-9 760 28.01     NR       G Asphyxiant. No LC or IDLH data available.
6649 G  NITROGEN DIOXIDE, (LIQUEFIED)  10102-44-0  760 46 LC50, RAT  115 I  57.5 3.83 2.3 E  UNIDOCS- UN-015
6650 G  NITROGEN DIOXIDE, GAS  10102-44-0  760 46 LC50, RAT  0.22 mg/l/h I  10.99 0.73 0.43 E  RTECS - QW9800000
6650 G  NITROGEN DIOXIDE, GAS  10102-44-0  760 46 LC50, RAT  116.93 I 58.46 3.89 2.33   RTECS - QW9800000
6302 G  NITROGEN MONOXIDE OR NITRIC OXIDE 10102-43-9  760 30.01 LC50, RAT  115 I  57.5 3.83 2.3 E  UNIDOCS UN-015
9769 G  NITROGEN TETROXIDE, (LIQUEFIED)  10544-72-6  760 92.02 LC50, RAT  115 I  57.5 3.83 2.3 E     
9768 G  NITROGEN TETROXIDE, GAS  10544-72-6  760 92.02 LC50, RAT  27.9 I 13.94 0.92 0.55 E RTECS - QX1575000
6300 G NITROGEN TRIFLUORIDE 7783-54-2 760 71.01 LC50, RAT 6700 NR       E  
9694 G  NITROGEN TRIOXIDE  10544-73-7  760 76.02 LC50, RAT  106 I 52.99 3.53 2.11 E  Unverified ChemTracker data.
13590 G  NITROSYL CHLORIDE  2696-92-6  760 65.46 LClo cat 35 I 17.49 1.16 0.69 E  CGA data.
13592 G  NITROUS ACID, ETHYL ESTER  109-95-5      75.07 LC50, RAT  320 II    10.67 6.4 K   
6298 G NITROUS OXIDE 10024-97-2 760 44.01     NR       E Exempt by TGO Guidelines. No LC or IDLH data available.
9707 G NITROUS OXIDE, (LIQUEFIED) 10024-97-2 760 44.01     NR       E Exempt by TGO Guidelines. No LC or IDLH data available.
13074 G OCTAFLUOROCYCLOBUTANE 115-25-3 760 200 LCLO, MOUSE 36291550 NR       G  
4430 L OXALYL BROMIDE  15219-34-8  760 215.8       II    53.33 32 D  TGO Class Assigned by CIH. No LC or IDLH data available. 
9477 G  OXYGEN DIFLUORIDE  7783-41-7  760 54 LC50, RAT  2.6 I  1.29 0.08 0.05 E  RTECS RS2100000
5573 G OXYGEN, GAS 7782-44-7 760 32 LCLO, HUMAN 16463290 NR       E  
10047 G OXYGEN, LIQUID 7782-44-7 760 32 LCLO, HUMAN 16463290 NR       E  
477 G  OZONE GAS  10028-15-6  760 48 LC50, RAT  9.6 I  4.79 0.31 0.19 E  RTECS - RS8225000
7179 G PARAFFIN HYDROCARBONS, GAS     60     NR       L TGO Class Assigned by CIH. No LC or IDLH data available.
9475 G  PERCHLORYL FLUORIDE  7616-94-6  760 102.5 LC50, RAT  770 II      25.67 15.4 E     
13629 G  PERFLUOROISOBUTYLENE  382-21-8      200 LC50, RAT  1.2 I  0.61 0.04 0.02 J   
6286 G PERFLUOROPROPANE 76-19-7 760 188     NR       G Asphyxiant. No LC or IDLH data available.
2972 G  PHOSGENE, GAS  75-44-5  760 98.92 LC50, RAT  5 I  2.5 0.17 0.1 J  UNIDOCS UN-015
3260 G  PHOSPHINE  7803-51-2  760 34 LC50, RAT  20 I  10 0.67 0.4 B  UNIDOCS UN-015
465 L PHOSPHOROUS OXYCHLORIDE 10025-87-3 760   LC50, RAT  96 I 47.99 3.19 1.91 B UNIDOCS UN-015
106 G  PHOSPHORUS PENTAFLUORIDE  7647-19-0  760 126 LC50, RAT  260 II      8.67 5.2 E  UNIDOCS UN-015
3093 L PHOSPHOROUS TRICHLORIDE 7719-12-2 760   LC50, RAT  208 II   6.93 4.15 B UNIDOCS UN-015 
13653 G PHOSPHORUS TRIFLUORIDE 7783-55-3   87.97     NR       X TGO Class Assigned by CIH. No LC or IDLH data available.
6401</