Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanide


Information about Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanide is for educational purposes only. ALS Environmental provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data. ALS Environmental is a laboratory testing network and is not affiliated with the U.S. Department of Transportation, the Emergency Response Guidebook (ERG) or safety materials. Analytical testing dots

Material Name:  Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanide

UN/NA ID:  1051

Emergency Response Guide Number:  117

CAS Number(s):  74-90-8

Analytical testing dots *Toxic inhalation hazard - Refer to isolation and protective action distances. IF A FIRE IS INVOLVED, ALSO CONSULT the assigned guide (orangebordered pages of your ERG) and apply as appropriate the evacuation information shown under PUBLIC SAFETY. Analytical testing dots

Isolation & Protective Action Distances for "AC (when used as a weapon)":

Small Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
100 m (300 ft)0.3 km (0.2 miles)1.1 km (0.7 miles)

Large Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
1000 m (3000 ft)3.8 km (2.4 miles)7.2 km (4.5 miles)

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Isolation & Protective Action Distances for "Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanide":

Small Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
60 m (200 ft)0.2 km (0.1 miles)0.6 km (0.4 miles)

Large Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
400 m (1250 ft)1.6 km (1.0 miles)4.1 km (2.5 miles)

Analytical testing dots

Isolation & Protective Action Distances for "Hydrogen cyanide, anhydrous, stabilized":

Small Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
60 m (200 ft)0.2 km (0.1 miles)0.6 km (0.4 miles)

Large Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
400 m (1250 ft)1.6 km (1.0 miles)4.1 km (2.5 miles)

Analytical testing dots

Isolation & Protective Action Distances for "Hydrogen cyanide, stabilized":

Small Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
60 m (200 ft)0.2 km (0.1 miles)0.6 km (0.4 miles)

Large Spills:

First ISOLATE in all directionsPROTECT persons downwind: DayPROTECT persons downwind: Night
400 m (1250 ft)1.6 km (1.0 miles)4.1 km (2.5 miles)

Analytical testing dotsRelated Hazardous Material(s):  Hydrogen cyanide, stabilized with less than 3 percent water  


Materials related to Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanide:
Bromotrifluoromethane    Chlorodifluoromethane    Chloropentafluoroethane    1-Chloro-1,2,2,2-tetrafluoroethane    Chlorotetrafluoroethane    Chlorotrifluoromethane    Dichlorodifluoromethane    Dichlorofluoromethane    1,1-Difluoroethane    Difluoroethane   


Hydrogen cyanide - CAS # 74-90-8   1,1,1,2-Tetrachloro-2,2-difluoroethane (CFC 112a)    1,1,1,2-Tetrachloro-2,2-difluoroethane (CFC 112a)    1,1,1,2-Tetrachloro-2,2-difluoroethane (CFC 112a)    1,1,1,2-Tetrachloroethane    1,1,1,2-Tetrafluoroethane (HFC 134a)    1,1,1,2-Tetrafluoroethane (HFC 134a)    1,1,1,2-Tetrafluoroethane (HFC 134a)    1,1,1,2-Tetrafluoroethane (HFC 134a)    1,1,1-Trichloro-2,2,2-trifluoroethane (CFC 113a)    1,1,1-Trichloro-2,2,2-trifluoroethane (CFC 113a)   


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*ALS Environmental provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data. ALS Environmental is a laboratory testing network and is not affiliated with the U.S. Department of Transportation, the Emergency Response Guidebook (ERG) or safety materials. This resource is provided as a convenience for informational purposes only and should not be relied upon as a guide for an actual emergency.


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