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Date of Issue : Mar 2002 1. IDENTIFICATION
General Product Name : POTASSIUM BROMATE Other Names : BROMIC ACID, POTASSIUM SALT UN No. : 1484 Dangerous Goods Class : 5.1 Subsidiary Risk : None Allocated Hazchem Code : 1YE Pack Group : II EPG : 31 Poisons Schedule : 6 Uses : Powerful oxidising agents; dough conditioner, production of malt.
1.1 Physical Description / Properties
Appearance : White crystalline powder. Formula : BrKO3 Boiling Point : N/A deg C Melting Point : 434 deg C Vapour Pressure : N/A Specific Gravity : 3.27 (water = 1) Flash Point : N/A pH : N/A () Solubility in water : Solub g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Solubility in water = 7.4% @ 25 deg C; alcohol = 5.5% @ 25 deg C Thermal decomposition temperature = 370 deg C 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
The main symptoms of the acute phase of KBrO3 poisoning are vomiting, dirrheoa and abdominal pain. Subsequently, headcahe, dizziness, shock symptoms, deafness , unconsciousness and convulsions are possible. Eye
May be irritating to the eyes. Skin
May be irritating to the skin. Inhaled
Irritating to the upper respiratory tract. Difficultly breathing may occur. Absorption from the lungs may cause symptoms similar to those of ingestion. 2.2 Health Effects - Chronic
Symptoms recorded as: rashes resembling acne, mental dullness, slurred speech and poor memory. May cause methaemoglobin.
2.3 First Aid
Swallowed
Seek medical attention, If swallowed, wash mouth out thoroughly with plenty of water and give water or milk to drink. Get medical attention immediately.
Eye
Seek medical assistance. Flush eyes with plenty of water for at least 20 minutes occasionally lifting upper and lower eyelids.
Skin
Immediately remove any contaminated clothing. Wash skin thoroughly with mild soap and plenty of water for at least 15 minutes. Wash clothing before re-use. Get medical attention immediately.
Inhaled
In case of dust inhalation or breathing fumes released from heated material, remove person to fresh air. Keep the person quiet and warm. Apply artificial respiration if necessary and get medical attention immediately.
First Aid Facilities
Ensure an eye bath and safet shower is readily available.
2.5 Advice to Doctor
KBrO3 is a nephrotoxin and an ototoxin. Cardiotoxicity and hepatotoxicity have also been reported.
2.6 Toxicity Data
Oral LD50 = 321 mg/kg (rat) Carcinogenicity - IARC Group 2B (animal sufficient evidence, human limited evidence). Potassium bromate induced kidney tumours in rats following administration of relatively high concentrations (250 or 500 ppm) in drinking water. In other laboratory animal species (mice and hamsters) the same significant typical carcinogenic activity could not be demonstrated.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
Recommended exposure limit = 5 mg/m3
3.2 Engineering Controls
Avoid generating and inhaling dusts. Maintain concentration below recommended exspoure limit.
3.3 Personal Protection
Respiratory protection - if dust is likely to pose a problem, an effective dust mask should also be worn. Eye protection - wear appropriate eye protection such as safety goggles. Skin protection - wear PVC gloves. Wear overalls or apron.
3.4 Flammability
Product will not ignite but is a strong oxidising agent and may form explosive mixtures with ammonium compounds, combustible materials, reducing agents or finely powdered materials such as metals, sulphur or carbon. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Stable on storage but best stored in tightly closed containers in a cool, dry well ventilated area away from organic materials. Not to be loaded into the same vehicle or freight containers as : Explosives, flammable gas, poisonous gas, flammable liquids, flammable solids, spontaneously combustible substances, dangerous when wet substances, organic peroxides, poisons capable of igniton and burning, radioactive substances, corrosives, class 9 material capable of ignition and burning. Avoid contact with incompatible materials.
4.2 Packaging / Labelling UN No. 1484 Class 5.1 Sub Risk None Allocated Hazchem Code 1YE Pack Group II EPG No. 31 Shipping Name POTASSIUM BROMATE Hazard TOXIC OXIDIZING
Risk Phrases R9 Explosive when mixed with combustible material. R25 Toxic if swallowed. R45 May cause cancer.
Safety Phrases S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible). S53 Avoid exposure - obtain special instructions before use.
4.3 Spills and Disposal
Spills
Keep combustibles away from spilled material. Clean up personnel should wear full protective gear.
With a clean shovel; place material into clean, dry container and cover. Move containers form spill area and keep for waste disposal. After material pickup is complete, flush remainder with sodium bisulphite solution following by large amounts of water. Ventilate area.
Disposal
Add material to a large amount of water. Slowly add sodium bisulphite. Acidify if reaction does not proceed spontaneously. Bromine will be liberated during the reaction, which is complete when no bromine remains. Neutralise and dispose of by flushing down the drain with large quantities of water. Observe all federal, state and local environmental regulations when disposing of this material.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Strong oxidising agent. Non-combustible but when involved in a fire it liberates oxygen which increases the rate of burning of the combustible materials involved and can cause explosion. Intimate mixture with powdered materials such as metal powders, sulphur or carbon may ignite spontaneously or when subjected to friction and burn with explosive violence. Containers may explode when involved in a fire. Will decompose from 370 deg C releasing poisonous and corrosive fumes of bromine.
Extinguishing Media
Use extinguishing media appropriate and suitable to surrounding conditions. 5 OTHER INFORMATION
Other Information
No information avaialable.
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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