SODIUM CHLORITE SOLUTION 15% - 37%
WHMIS CONTROLLED PRODUCT
Date Issued:11/03/2005
Revision #:0
MATERIAL SAFETY DATA SHEET
1. Chemical Product And Company Information
Sodium Chlorite Solution 15% - 37%
Chemical Name:
Sodium Chlorite Solution
Synonyms/Trade
Names:
Chemical Family:
NaClO2
Formula:
90.45
Molecular Weight:
7758-19-2
CAS No.:
Generation of chlorine dioxide for use as a disinfectant or for use as an oxidant.
Uses:
Bleaching of textiles and other fibers.
Manufacturer & Supplier: Transportation Emergency Telephone Numbers:
ERCO Worldwide, a division of Superior Plus Inc. CANADA: (613) 996-6666
302 The East Mall, Ste. 200 CANUTEC
Toronto, Ontario Canada M9B 6C7
(416) 239-7111 USA: 1-800-424-9300
CHEMTREC
WHMIS Classification(s):
D1B (Toxic) C (Oxidizing Material) E (Corrosive Material)
2. Composition / Information On Ingredients
Name: Conc. % By Weight CAS No.
Sodium Chlorite 15-37 7758-19-2
Water Balance 7732-18-5
Sodium Chlorite Solution 15% - 37%
3. Hazard Identification
Emergency Overview: Clear, water white to slightly yellow liquid, slight chlorine odor. If product is allowed
to dry, heat or friction can easily ignite this product. Do not allow this product to dry on cloth or
clothing.Water is the only effective extinguisher. Oxidation can cause a fire hazard.Contact with acids,
organic materials, reducing agents or chlorine donors will produce chlorine dioxide gas and heat. Ventilate
area with large amounts of air to keep the chlorine
dioxide concentration low.
Routes of Entry:
Eye Contact: Direct contact may cause severe irritation and possibly burns. Symptoms may include
tearing, redness and
in severe cases, eye damage due to burns.
Skin Contact: Direct contact may cause severe irritation and / or burns with symptoms of redness,
itching, swelling and
possible destruction of tissue.
Inhalation: Material is irritating to mucous membranes and upper respiratory tract. Symptoms may
include coughing,
bloody nose and sneezing. High concentrations can cause lung damage.
Ingestion: May cause nausea, vomiting, lethargy, diarrhea, bleeding or ulceration. Acute ingestion of
large quantities may
also cause anemia due to the oxidizing effects of the chemical. Other symptoms may include
methemoglobinemia (causes
bluish discolouration of the skin and mucous membranes)
Symptoms of Exposure:
Eye Contact: Symptoms may include tearing, redness and in severe cases, eye damage due to burns.
Skin Contact: Symptoms of redness, itching, swelling and possible destruction of tissue may occur.
Inhalation: Symptoms may include coughing, bloody nose and sneezing. High concentrations can cause
lung damage.
Ingestion:Symptoms may include methemoglobinemia (causes bluish discolouration of the skin and
mucous membranes)
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4. First Aid Measures
Skin: Remove contaminated clothing and keep it wet until washed. Wash the affected area with soap and
water. If irritation develops, get medical attention.
Eyes: Flush with water for a minimum of 15 minutes. Get medical attention.
Inhalation: If irritation or other symptoms are experienced, remove victim to fresh air. If symptoms persist
get medical attention.
Ingestion: DO NOT INDUCE VOMITING. DO NOT GIVE ANYTHING BY MOUTH TO AN
UNCONSCIOUS PERSON. Otherwise rinse mouth with water and give 8 to 10 ounces (or 250 to 300 ml)
of milk, egg whites or gelatin solution. Get medical attention immediately.
5. Fire-Fighting Measures
Conditions Of Flammability: Does not burn, but combustibles wetted with this solution and subsequently
dried are easily ignited and burn vigorously.
Means To Extinguish: Water is the only effective extinguisher.
Hazardous Combustion Products: None, does not burn.
Auto-Ignition Not applicable
Flash Point & Method: Not applicable
Temperature:
Mechanical Impact Not applicable
Upper Flammability Not applicable
Limit: Sensitivity:
Static Discharge Not applicable
Lower Flammability Not applicable
Limit: Sensitivity:
6. Accidental Release Measures
Leak Or Spill Procedures: Contain spills. Collect into clean metal or high density polyethylene containers.
Wash away residues with large amounts of water.
DO NOT USE RAGS, SAWDUST OR OTHER COMBUSTIBLE ABSORBENTS.
Waste Control Procedures: Wash or incinerate all contaminated combustible material in an
environmentally acceptable manner before it dries out. Consult supplier regarding disposal of reclaimed
sodium chlorite.
7. Handling Storage
Handling Procedures And Equipment: Use corrosion resistant tools and equipment. Avoid skin or
clothing contact.
Storage: Store in a cool, dry fireproof building.
KEEP AWAY FROM COMBUSTIBLES AND ACIDS.
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8. Exposures Controls / Personal Protection
Protective Equipment:
l Chemical safety goggles.
l Butyl rubber or neoprene gloves.
l Dust/mist mask in dusty or misty locations.
l Wear waterproof or washable outer clothing.
Remove contaminated clothing and wash it before it dries.
Engineering Controls:
Use separate, corrosion-resistant ventilation system to capture mist or fume. Do not use wood or other
combustibles to construct vent system. Prevent entry into bearings or gear boxes, which could cause an
explosion.
9. Physical And Chemical Properties
State: Liquid Appearance: Clear Solution, pale green
clear
Odour: Faint bleach-like odour Specific Gravity: Depends on concentration
1.12 @ 20掳C for 15 wt%
Sol.
1.16 @ 20掳C for 20 wt%
Sol.
1.21 @ 20掳C for 25 wt%
Sol.
1.34 @ 20掳C for 37 wt%
Sol.
Odour Threshold: Not applicable Vapour Not available
Pressure:
Boiling Point: Depends on concentration Vapour Density: Not applicable
102掳C @ 20掳C for 20 wt%
Sol.
105掳C @ 20掳C for 25 wt%
Sol.
109掳C @ 20掳C for 37 wt%
Sol.
Melting Point: Not applicable Evaporation Not available
Rate:
Freezing Point: Depends on concentration
-7掳C for 15 wt% Sol.
-15掳C for 20 wt% Sol.
-19掳C for 25 wt% Sol.
+18掳C for 37 wt% Sol.
pH: 12.5 to 13 Solubility In Miscible
Water:
Coefficient Of Water/Oil Not available Bulk Density: Not applicable
Distribution:
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Sodium Chlorite Solution 15% - 37%
10. Stability And Reactivity
Chemical Stability: Stable in itself, but reactive as detailed below.
Reactivity Conditions: Reacts on mixing with acids to give toxic chlorine dioxide and chlorine gases.
Mixtures with combustibles, if allowed to dry out, are easily ignited by heat or friction and burn vigorously
or may explode.
Incompatible Substances: Incompatible with all combustibles and reducing agents, especially
phosphorus, sulfur-containing materials, powdered metals, ammonium compounds. Incompatible with
acids.
Hazardous Decomposition Products: Residues of sodium chlorite, from dried-out solution, will give off
oxygen on being heated strongly.
11. Toxicological Information
Skin Contact: Irritating to the skin if not Exposure Limits: Not available
washed off promptly. Dermatitis
is likely to occur from repeated
or prolonged contact.
Skin Not available Irritancy: Severe (corrosive)
Absorption:
Eye Contact: Causes severe eye irritation. Sensitization: Not reported as a human
May cause permanent damage sensitizer.
because of its corrosive
properties.
Inhalation: Spray or mist is irritating to the Carcinogenicity: Does not appear in reference
nose and throat. lists.
Ingestion: Will irritate and may cause Teratogenicity & Not teratogenic even at
corrosion of the gastrointestinal Mutagenicity maternally toxic doses.
tract. Mutagenicity has been
May cause vomiting, nausea, demonstrated in bacteria and
diarrhea, cramps and pain. May mammalian cell cultures, but
damage blood cells, liver or not in experiments involving
kidney. whole animals.
LD50: 660 mg/kg (rat) for 25 wt% Reproductive Shown to be toxic to
Soln. Toxicology: mammalian fetuses only at
Can be estimated from above doses toxic to the mother. In
for other concentrations one study, sodium chlorite
given in drinking water showed
a small but statistically
significant increase in the
percentage of abnormal sperm;
another study was negative.
Toxicological Not available.
LC50:
Synergism:
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12. Ecological Information
Ecological Information: This product is toxic to aquatic life. Do not discharge into lakes, streams, ponds,
sewers or other waters unless in accordance with the permitting authority.
Biodegradability: In soil, will degrade to sodium chloride but may form chlorine dioxide in contact with
acidic soils.
Aquatic Toxicity: In water, sodium chlorite will eventually degrade to sodium chloride.
13. Disposal Considerations
Disposal Considerations: Disposal of all wastes must be done in accordance with municipal, provincial
and federal regulations.
14. Transportation Information
Shipping Name (TDGR) UN Number Hazard Class Packing Group
Chlorite Solution 1908 8 II
15. Regulatory Information
This product has been classified in accordance with the hazard criteria of the CPR and the MSDS
contains all of the information required by the CPR.
Safety Environmental Transportation
All components of this product are N/A
either on the Domestic Substances
List (DSL) or the Non-Domestic
Substances List (NDSL) or
exempt.
All components of this product are
either on the Toxic Substances
Control Act (TSCA) Inventory List
or exempt.
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16. Other Information
Information on this form is furnished in compliance with the Regulations Respecting Controlled Products
under the Hazardous Products Act and is not to be used for any other purpose, nor is it to be reproduced
or published.
ERCO Worldwide, a division of Superior Plus Inc., assumes no responsibility for injury to or death of the
recipient of this material or third persons, or for any loss of damage, howsoever, caused, and the user,
owner, bailee and their respective employees and agents assume all such risks if reasonable safety
procedures are not adhered to.
In addition, ERCO Worldwide, a division of Superior Plus Inc., assumes no responsibility for injury to or
death of the recipient of this material or third persons, or for any loss or damage to any property, or for
any consequential damage resulting from any abnormal user or theft of the material, and the user, owner,
bailee and their respective employees and agents assume all such risks even when caused by
negligence, omission, default or error in judgement of ERCO Worldwide, a division of Superior Plus Inc.
or its agents or servants.
Each recipient should carefully review the information, data and recommendations in the specific context
of the intended use.
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