Sodium cyanide (as CN)
|
CAS
143-33-9
|
NaCN
|
RTECS
VZ7525000
|
Synonyms & Trade Names
Sodium salt of hydrocyanic acid
|
DOT ID & Guide
1689 / 157 (solid)
3413 / 157 (solution)
|
Exposure Limits
|
NIOSH REL*: C 5 mg/m3 (4.7 ppm) [10-minute] [*Note: The REL also applies to other cyanides (as CN) except Hydrogen cyanide.]
|
OSHA PEL*: TWA 5 mg/m3 [*Note: The PEL also applies to other cyanides (as CN) except Hydrogen cyanide.]
|
IDLH
25 mg/m3 (as CN)
See: cyanides
|
Conversion
|
Physical Description
White, granular or crystalline solid with a faint, almond-like odor.
|
MW: 49.0
|
BP: 2725°F
|
MLT: 1047°F
|
Sol(77°F): 58%
|
VP: 0 mmHg (approx)
|
IP: NA
|
|
Sp.Gr: 1.60
|
Fl.P: NA
|
UEL: NA
|
LEL: NA
|
|
Noncombustible Solid, but contact with acids releases highly flammable hydrogen cyanide.
|
Incompatibilities & Reactivities
Strong oxidizers (such as acids, acid salts, chlorates & nitrates) [Note: Absorbs moisture from the air forming a syrup.]
|
Measurement Methods
NIOSH 6010, 7904
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
|
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator Recommendations
NIOSH/OSHA
Up to 25 mg/m3: (APF = 10) Any supplied-air respirator (APF = 50) Any self-contained breathing apparatus with a full facepiece
Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure- demand or other positive-pressure mode (APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern and having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
|
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
|
Symptoms
Irritation eyes, skin; asphyxia; lassitude (weakness, exhaustion), headache, confusion; nausea, vomiting; increased respiratory rate; slow gasping respiration; thyroid, blood changes
|
Target Organs
Eyes, skin, cardiovascular system, central nervous system, thyroid, blood
|
See also: INTRODUCTION
See ICSC CARD: 1118 |