SIGMA-ALDRICH
MATERIAL SAFETY DATA SHEET
Date Printed: 03/15/2005
Date Updated: 01/27/2005
Version 1.6
Section 1 - Product and Company Information
Product Name AMMONIUM THIOCYANATE, 97.5+%,
A.C.S. REAGENT
Product Number 221988
Brand ALDRICH
Company Sigma-Aldrich
Street Address 3050 Spruce Street
City, State, Zip, Country SAINT LOUIS MO 63103 US
Technical Phone: 314 771 5765
Emergency Phone: 414 273 3850 Ext. 5996
Fax: 800 325 5052
Section 2 - Composition/Information on Ingredient
Substance Name CAS # SARA 313
AMMONIUM THIOCYANATE 1762-95-4 No
Formula NH4SCN
Synonyms Ammonium rhodanate * Ammonium sulfocyanate *
Ammoniumthiocyanate * Rhodanid * Rhodanide *
Trans-aid * USAF EK-P-433
RTECS Number: XK7875000
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Harmful.
Harmful by inhalation, in contact with skin and if swallowed.
Contact with acids liberates very toxic gas.
Target organ(s): Thyroid. Central nervous system.
HMIS RATING
HEALTH: 1*
FLAMMABILITY: 0
REACTIVITY: 1
NFPA RATING
HEALTH: 1
FLAMMABILITY: 0
REACTIVITY: 1
*additional chronic hazards present.
For additional information on toxicity, please refer to Section 11.
Section 4 - First Aid Measures
ORAL EXPOSURE
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
INHALATION EXPOSURE
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
DERMAL EXPOSURE
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
EYE EXPOSURE
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
Section 5 - Fire Fighting Measures
FLASH POINT
N/A
AUTOIGNITION TEMP
N/A
FLAMMABILITY
N/A
EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
FIREFIGHTING
Protective Equipment: Wear self-contained breathing apparatus
and protective clothing to prevent contact with skin and eyes.
Specific Hazard(s): Emits toxic fumes under fire conditions.
Section 6 - Accidental Release Measures
PROCEDURE TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Sweep up, place in a bag and hold for waste disposal. Avoid
raising dust. Ventilate area and wash spill site after material
pickup is complete.
Section 7 - Handling and Storage
HANDLING
User Exposure: Do not breathe dust. Avoid contact with eyes,
skin, and clothing. Avoid prolonged or repeated exposure.
STORAGE
Suitable: Keep tightly closed.
SPECIAL REQUIREMENTS
Hygroscopic. Air sensitive. Handle and store under inert gas.
Section 8 - Exposure Controls / PPE
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ENGINEERING CONTROLS
Safety shower and eye bath. Mechanical exhaust required.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory: Government approved respirator.
Hand: Compatible chemical-resistant gloves.
Eye: Chemical safety goggles.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling.
Section 9 - Physical/Chemical Properties
Appearance Physical State: Solid
Property Value At Temperature or Pressure
Molecular Weight 76.12 AMU
pH 4 - 5.5
BP/BP Range N/A
MP/MP Range 152 - 154 掳C
Freezing Point N/A
Vapor Pressure N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
SG/Density 1.3 g/cm3
Bulk Density N/A
Odor Threshold N/A
Volatile% N/A
VOC Content N/A
Water Content N/A
Solvent Content N/A
Evaporation Rate N/A
Viscosity N/A
Surface Tension N/A
Partition Coefficient N/A
Decomposition Temp. N/A
Flash Point N/A
Explosion Limits N/A
Flammability N/A
Autoignition Temp N/A
Refractive Index N/A
Optical Rotation N/A
Miscellaneous Data N/A
Solubility Solubility in Water:1 M in H2O, 20掳C
complete, colorless
N/A = not available
Section 10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions to Avoid: Moisture. Exposure to air may affect product
quality.
Materials to Avoid: Strong oxidizing agents, Strong acids, Forms
explosive mixtures with:, Lead nitrate.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Nitrogen oxides, Sulfur oxides, Hydrogen cyanide, Ammonia.
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HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
Section 11 - Toxicological Information
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
Skin Absorption: Harmful if absorbed through skin.
Eye Contact: May cause eye irritation.
Inhalation: Harmful if inhaled. Material may be irritating to
mucous membranes and upper respiratory tract.
Ingestion: Harmful if swallowed.
TARGET ORGAN(S) OR SYSTEM(S)
Thyroid. Central nervous system.
SIGNS AND SYMPTOMS OF EXPOSURE
To the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
TOXICITY DATA
Oral
Rat
750 mg/kg
LD50
Oral
Mouse
500 mg/kg
LD50
Intraperitoneal
Mouse
500 MG/KG
LD50
Oral
Guinea pig
500 mg/kg
LD50
Section 12 - Ecological Information
No data available.
Section 13 - Disposal Considerations
APPROPRIATE METHOD OF DISPOSAL OF SUBSTANCE OR PREPARATION
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
environmental regulations.
Section 14 - Transport Information
DOT
Proper Shipping Name: Environmentally hazardous
substances, solid, n.o.s.
UN#: 3077
Class: 9
Packing Group: Packing Group III
Hazard Label: Class 9
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PIH: Not PIH
IATA
Non-Hazardous for Air Transport: Non-hazardous for air
transport.
Section 15 - Regulatory Information
EU DIRECTIVES CLASSIFICATION
Symbol of Danger: Xn
Indication of Danger: Harmful.
R: 20/21/22 32
Risk Statements: Harmful by inhalation, in contact with skin and
if swallowed. Contact with acids liberates very toxic gas.
S: 13
Safety Statements: Keep away from food, drink, and animal
feedingstuffs.
US CLASSIFICATION AND LABEL TEXT
Indication of Danger: Harmful.
Risk Statements: Harmful by inhalation, in contact with skin and
if swallowed. Contact with acids liberates very toxic gas.
Safety Statements: Keep away from food, drink, and animal
feedingstuffs.
US Statements: Target organ(s): Thyroid. Central nervous system.
UNITED STATES REGULATORY INFORMATION
SARA LISTED: No
TSCA INVENTORY ITEM: Yes
CANADA REGULATORY INFORMATION
WHMIS Classification: This product has been classified in
accordance with the hazard criteria of the CPR, and the MSDS
contains all the information required by the CPR.
DSL: Yes
NDSL: No
Section 16 - Other Information
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
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