PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Cyanogen 460-19-5 1026
15.01
4.01
4.08
4.05
7.01
11.00
4.02
4.06
4.11
Formula Synonyms
C2N2 CYANOGEN, CARBON NITRIDE, CARBON NITRIDE (C2N2), CIANÓGENO (DOT SPANISH), CIANÓGENO, GAS (DOT SPANISH), CIANÓGENO, LICUADO (DOT SPANISH), CYANOGEN (C2N2), CYANOGEN GAS, CYANOGEN, LIQUEFIED, CYANOGÈNE (DOT FRENCH), CYANOGÈNE EN GAZ (DOT FRENCH), CYANOGÈNE, LIQUÉFIÉ (DOT FRENCH), DICYAN, DICYANOGEN, ETHANE DINITRILE, ETHANEDINITRILE, NITRILOACETONITRILE, OXALIC ACID DINITRILE, OXALONITRILE, OXALYL CYANIDE
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
52.03 G -27.83 -21.1 750 -21.4 0.9537 @ 21°C 66000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
2.0 8.3 25
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
4.3 18 53
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL ppm values consistent with Rev. 29A. Minor differences in the reported TEEL-1 and TEEL-2 values in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values. Values in units mg/m3 are reported as published in the technical support document Table 3-1, per handbook guidance (Section 3.4.7.2).
References
AEGLs (Table 3-1, pg. 163) and chemical information (Table 3-2, pg. 164) retrieved from: https://www.epa.gov/aegl/cyanogen-results-aegl-program
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.