SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 25/MAY/2005
Date Updated: 17/MAY/2005
Version 2.1
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name POTASSIUM CHLORATE, 99.99+%
Product Number 455814
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
POTASSIUM CHLORATE 3811-04-9 223-289-7 017-004-00-3
Formula KClO3
Molecular Weight 122.55 AMU
Synonyms Anforstan * Berthollet salt * Berthollet's salt
* Chlorate de potassium (French) * Chlorate of
potash * Fekabit * Oxymuriate of potash *
Potassio (chlorato di) (Italian) * Potassium
chlorate * Potassium (chlorate de) (French) *
Potassium oxymuriate * Potcrate * Salt of tarter
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Explosive when mixed with combustible material. Harmful by
inhalation and if swallowed. Toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If breathing becomes difficult,
call a physician.
AFTER SKIN CONTACT
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
AFTER EYE CONTACT
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.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
Contact with other material may cause fire. May accelerate
combustion.
Explosion Hazards: May explode when heated.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES 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.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Do not get in
eyes, on skin, on clothing. Avoid prolonged or repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from
combustible materials, heat, sparks, and open flame.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Remove and wash contaminated
clothing promptly. Discard contaminated shoes.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Solid
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Color: White
Form: Fine crystals
Property Value At Temperature or Pressure
pH 5 - 6.5
BP/BP Range N/A
MP/MP Range 356 藲C
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density 2.32 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility Solubility in Water:0.5 M in H2O, 20藲C
complete, colorless
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Materials to Avoid: Strong reducing agents, Finely powdered
metals, Strong acids, Alcohols, Organic materials.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Oxygen.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: FO0350000
ACUTE TOXICITY
LD50
Oral
Rat
7,000 mg/kg
LD50
Oral
Mouse
8,350 mg/kg
LD50
Skin
Rabbit
> 2,000 mg/kg
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LD50
Oral
Rat
1870 mg/kg
IRRITATION DATA
Eyes
Rabbit
Remarks: Mild irritation effect
Eyes
Rabbit
Remarks: Moderate irritation effect
Skin
Rabbit
Remarks: Mild irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Anemia. Absorption into the body leads to the formation of
methemoglobin which in sufficient concentration causes cyanosis.
Onset may be delayed 2 to 4 hours or longer. Symptoms of
overexposure to potassium chlorate include nausea, vomiting,
abdominal pain, diarrhea, anemia (hemolytic) and hemorrhage.
Methemoglobin formation results from catalytic oxidation of the
blood. Anuria, damage to the liver, convulsions due to central
nervous system effects, and coma may also occur. To the best of
our knowledge, the chemical, physical, and toxicological
properties have not been thoroughly investigated.
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: May cause eye irritation.
Inhalation: May be harmful if inhaled. Harmful if inhaled.
Ingestion: Harmful if swallowed.
TARGET ORGAN INFORMATION
Blood. Liver. Kidneys.
12 - Ecological Information
ECOTOXICOLOGICAL EFFECTS
Test Type: EC50 Daphnia
Species: Daphnia magna
Time: 24 h
Value: 1,093 mg/l
Test Type: LC50 Fish
Species: Onchorhynchus mykiss (Rainbow trout)
Time: 48 h
Value: 2,750 mg/l
Test Type: LC50 Fish
Species: Pimephales promelas (Fathead minnow)
Time: 96 h
Value: 13,500 mg/l
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
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environmental regulations.
14 - Transport Information
RID/ADR
UN#: 1485
Class: 5.1
PG: II
Proper Shipping Name: Potassium chlorate
IMDG
UN#: 1485
Class: 5.1
PG: II
Proper Shipping Name: Potassium chlorate
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1485
Class: 5.1
PG: II
Proper Shipping Name: Potassium chlorate
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 017-004-00-3
INDICATION OF DANGER: O Xn N
Oxidizing. Harmful. Dangerous for the environment.
R-PHRASES: 9 20/22 51/53
Explosive when mixed with combustible material. Harmful by
inhalation and if swallowed. Toxic to aquatic organisms, may
cause long-term adverse effects in the aquatic environment.
S-PHRASES: 13 16 27 61
Keep away from food, drink, and animal feedingstuffs. Keep away
from sources of ignition - no smoking. Take off immediately all
contaminated clothing. Avoid release to the environment. Refer
to special instructions/safety data sheets.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 2
SWITZERLAND
SWISS POISON CLASS: 3
16 - Other Information
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
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paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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