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Table 3-15
Toxicity of Corrosion Inhibitors (96-hr LC 50, mg/L)
Generic Chemical Type Fresh Water Salt Water
Amide/imadizoline 0.26-75 2,12-26!
Amide/imadizoline + quaternary 1.2-1.3 1-5
Quaternary 1,5-2.8
Ammonium salts 5.96-116
Amines 0,86 1.98-710
Sulfonate 220
Phenanthradine 6.1
Pyridine salt + quaternary 2,26
Alkyl morpholines 800–1,055
Ammonium bisulfite 75-423 77–788
Sodium sulfite 7,000
Source: after Hudgins, 1992.
Copyright SPE, with permission.
Table 3-16
Acute Toxicity of Paraffin Inhibitors (96-hr LC 50, mg/L)
Generic Chemical Type Fresh Water Salt Water
Vinyl polymer 42 2.7
Sulfonate salt 17-25.1 37.4
Alkyl polyether + aryl polyether 1.55
Other 17-44 13.3-37.4
Source: after Hudgins, 1992.
Copyright SPE, with permission.
