Product ID:HYDROGEN CYANIDE, ANHYDROUS, STABILIZED
MSDS Date:Jan 24 1989
MSDS Number: EEEHY
Kit Part:=== Responsible Party ===
Company Name:MATHESON TRI-GAS, INC.
Address:959 ROUTE 46 EAST
City:PARSIPPANY
State:NJ
ZIP:07054-0624
Country:US
Info Phone Num:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
780-471-4036
Chemtrec Ind/Phone:18004249300

Telephone: (USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)

HYDROGEN CYANIDE, ANHYDROUS, STABILIZED

CAS: 74-90-8

Fraction By Weight: 100.0%

Reports of Carcinogenicity:NTP:No IARC:No OSHA:No
Health Hazards Acute and Chronic:INHALATION: SHORT TERM EXPOSURE:
irritation, rash, nausea, chest pain, irregular heartbeat,
headache, blindness, bluish skin color, suffocation, lung
congestion, paralysis, convulsions, coma, death LONG TERM EXPOSURE:
vomiting, digestive disorders, dizziness SKIN CONTACT: SHORT TERM
EXPOSURE: suffocation LONG TERM EXPOSURE: same as effects reported
in long term inhalation, rash, itching EYE CONTACT: SHORT TERM
EXPOSURE: irritation, suffocation, death LONG TERM EXPOSURE: same
as effects reported in short term exposure INGESTION: SHORT TERM
EXPOSURE: suffocation, death LONG TERM EXPOSURE: no information is
available
Medical Cond Aggravated by Exposure:

First Aid: INHALATION: When safe to enter area, remove from exposure.
Use a bag valve mask or similar device to perform artificial
respiration (rescue breathing) if needed. Get medical attention
immediately. SKIN CONTACT: Wash skin with soap and water for at
least 15 minutes while removing contaminated clothing and shoes.
Get medical attention, if needed. Thoroughly clean and dry
contaminated clothing and shoes before reuse. EYE CONTACT: Flush
eyes with plenty of water for at least 15 minutes. Then get
immediate medical attention. INGESTION: Contact local poison
control center or physician immediately. Never make an unconscious
person vomit or drink fluids. When vomiting occurs, keep head lower
than hips to help prevent aspiration. If person is unconscious,
turn head to side. Get medical attention immediately. ANTIDOTE:
amyl nitrite, inhalation; sodium nitrite, intravenous; sodium
thiosulfate, infusion; oxygen.

Flash Point:0 F (-18 C) (CC)
Autoignition Temp:1000 F (538 C)
Lower Limits:5.6%
Upper Limits:40%
Extinguishing Media:Let burn unless leak can be stopped immediately.
Large fires: Use regular foam or flood with fine water spray.
Fire Fighting Procedures:Move container from fire area if it can be
done without risk. Withdraw immediately in case of rising sound
from venting safety device or any discoloration of tanks due to
fire. Cool containers with water spray until well after the fire is
out. Keep unnecessary people away, isolate hazard area and deny
entry. For tank, rail car or tank truck, evacuation radius:
Evacuation radius: 800 meters (1/2 mile). Do not attempt to
extinguish fire unless flow of material can be stopped first. Flood
with fine water spray. Do not scatter spilled material with
high-pressure water streams. Cool containers with water. Apply
water from a protected location or from a safe distance. Avoid
inhalation of material or combustion by-products. Stay upwind and
keep out of low areas.
Unusual Fire/Explosion Hazard:Severe fire hazard. Containers may
rupture or explode if exposed to heat. Vapor/air mixtures are
explosive. Gas or vapor is lighter than air. Vapors or gases may
ignite at distant ignition sources and flash back.

Spill Release Procedures:Do not touch spilled material. Stop leak if
possible without personal risk. Avoid heat, flames, sparks and
other sources of ignition. Remove sources of ignition. Reduce
vapors with water spray. Do not get water directly on material.
Keep unnecessary people away, isolate hazard area and deny entry.
Stay upwind and keep out of low areas. Ventilate closed spaces
before entering. Evacuation radius: 150 feet. For tank, rail car or
tank truck: 800 meters (1/2 mile). Notify Local Emergency Planning
Committee and State Emergency Response Commission for release
greater than or equal to RQ (U.S. SARA Section 304). If release
occurs in the U.S. and is reportable under CERCLA Section 103,
notify the National Response Center at (800)424-8802 (USA) or
(202)426-2675 (USA).
Neutralizing Agent:

Handling and Storage Precautions:Store and handle in accordance with
all current regulations and standards. Subject to storage
regulations: U.S. OSHA 29 CFR 1910.101. Protect from physical
damage. Store outside or in a detached building. Store with
flammable liquids. Avoid heat, flames, sparks and other sources of
ignition. Shelf life is 90 days. Keep separated from incompatible
substances. Notify State Emergency Response Commission for storage
or use at amounts greater than or equal to the TPQ (U.S. EPA SARA
Section 302). SARA Section 303 requires facilities storing a
material with a TPQ to participate in local emergency response
planning (U.S. EPA 40 CFR 355.30).
Other Precautions:

Respiratory Protection:The following respirators and maximum use
concentrations are drawn from NIOSH and/or OSHA. 47 ppm Any
supplied-air respirator. Any self-contained breathing apparatus. 50
ppm Any supplied-air respirator. Any self-contained breathing
apparatus with a full facepiece. Any supplied-air respirator with a
full facepiece. Escape - Any air-purifying respirator with a full
facepiece and a canister providing protection against this
substance. Any appropriate escape-type, self-contained breathing
apparatus. For Unknown Concentrations or Immediately Dangerous to
Life or Health - Any supplied-air respirator with full facepiece
and operated in a pressure-demand or other positive-pressure mode
in combination with a separate escape supply. Any self-contained
breathing apparatus with a full facepiece.
Ventilation:Provide local exhaust or process enclosure ventilation
system. Ensure compliance with applicable exposure limits.
Protective Gloves:Wear appropriate chemical resistant gloves.
Eye Protection:Wear splash resistant safety goggles with a faceshield.
Provide an emergency eye wash fountain and quick drench shower in
the immediate work area.
Other Protective Equipment:Wear appropriate chemical resistant
clothing.
Supplemental Safety and Health
HYDROGEN CYANIDE, ANHYDROUS, STABILIZED: HYDROGEN CYANIDE: 10 ppm (11
mg/m3) OSHA TWA (skin) 4.7 ppm (5 mg/m3) OSHA STEL (skin) (vacated
by 58 FR 35338, June 30, 1993) 4.7 ppm(CN) ACGIH ceiling (skin) 4.7
ppm (5 mg/m3) NIOSH recommended STEL (skin)

Boiling Pt:79 F (26 C)
Melt/Freeze Pt:7 F (-14 C)
Vapor Pres:620 mmHg @ 20 C
Vapor Density:0.941
Spec Gravity:0.699 @ 22 C
pH:weakly acidic
Evaporation Rate & Reference:Not available
Solubility in Water:soluble
Appearance and Odor:PHYSICAL STATE:liquid COLOR:colorless ODOR:almond
odor
Corrosion Rate:

Stability Indicator/Materials to Avoid:May react with evolution of heat
on contact with water.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Minimize contact with material. Avoid
inhalation of material or combustion by-products. Keep out of water
supplies and sewers.
Hazardous Decomposition Products:Thermal decomposition products:
cyanides Thermal decomposition products: cyanides
Conditions to Avoid Polymerization:Polymerizes with evolution of heat.
Avoid contact with air, light, water, incompatible material or
storage and use above room temperature.

Waste Disposal Methods:Dispose in accordance with all applicable
regulations. Subject to disposal regulations: U.S. EPA 40 CFR 262.
Hazardous Waste Number(s): P063.

Toxicological Information:HYDROGEN CYANIDE, ANHYDROUS, STABILIZED:
TOXICITY DATA: 160 ppm/30 minute(s) inhalation-rat LC50; 3700 ug/kg
oral-mouse LD50 LOCAL EFFECTS: Irritant: inhalation, eye ACUTE
TOXICITY LEVEL: Highly Toxic: inhalation, ingestion TARGET ORGANS:
blood MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: blood system
disorders, heart or cardiovascular disorders, nervous system
disorders

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:ECOTOXICITY DATA: FISH TOXICITY: 5 ug/L 12 week(s)
(Physiological) Atlantic salmon (Salmo salar) INVERTEBRATE
TOXICITY: 21 ug/L 83 hour(s) NOEC (Reproduction) Scud (Gammarus
pseudolimnaeus)

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Hydrogen cyanide, stabilized with less than 3 percent water ID
NUMBER: UN1051 HAZARD CLASS OR DIVISION: 6.1 PACKING GROUP: I
LABELING REQUIREMENTS: Poison; Flammable liquid QUANTITY
LIMITATIONS: PASSENGER AIRCRAFT OR RAILCAR: Forbidden CARGO
AIRCRAFT ONLY: Forbidden

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): HYDROGEN CYANIDE: 100LBSTPQ
SARA TITLE III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR
355.40): HYDROGEN CYANIDE: 10LBSRQ SARA TITLE III SARA SECTIONS
311/312 HAZARDOUS CATEGORIES (40 CFR 370.21): ACUTE: Yes
CHRONIC: No FIRE: Yes REACTIVE: Yes SUDDEN RELEASE: Yes SARA
TITLE III SECTION 313 (40 CFR 372.65): HYDROGEN CYANIDE
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): HYDROGEN CYANIDE: 10LBSRQ OSHA PROCESS
SAFETY (29CFR1910.119): HYDROGEN CYANIDE: 1000LBSTQ
State Regulatory Information: California Proposition 65: Not regulated.