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Material Safety Data Sheet


CAUSTIC SODA
Infosafe™ No.VARBMIssue DateFebruary 2021StatusISSUED by MILESTONBS: 1.17.117

Classified as hazardous according to criteria of NOHSC


 1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER

 
Product NameCAUSTIC SODA
 
Company NameMilestone Chemicals Pty. Ltd. (ABN 85115166357)
 
Address115 Northern Road West Heidelberg
VIC 3081
 
Emergency Tel.(03) 9450 4555 Mon-Fri 8am - 6pm
 
Telephone/Fax NumberTel: (03) 9450 4555
Fax: (03) 9457 5518
 
Recommended UseMulti purpose heavy duty alkaline cleaner.
 
Other NamesNot Available
 

 2. HAZARDS IDENTIFICATION

 
Hazard ClassificationSkin Corrosion/Irritation: Category 1A
 
Risk Phrase(s)R35 Causes severe burns.
R41 Risk of serious damage to eyes.
 
Safety Phrase(s)S1/2 Keep locked up and out of reach of children.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S28 After contact with skin, wash immediately with plenty of soap and water
S45 In case of accident or if you feel unwell seek medical advice immediately
S37/39 Wear suitable gloves and eye/face protection.
 

 3. COMPOSITION/INFORMATION ON INGREDIENTS

 
Chemical CharacterizationSolid
 
Ingredients    Name CAS Proportion Hazard Statement(s)
   
   Sodium hydroxide1310-73-2100 %
 

 4. FIRST AID MEASURES

 
First Aid MeasuresM
 
InhalationRemove victim to fresh air. Do not use mouth-to-mouth method if victim inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult
 
IngestionIf swallowed, do NOT induce vomiting. Give a glass of water to be taken slowly. Seek urgent medical assistance.
 
SkinIf skin contact occurs, remove contaminated clothing and wash skin thoroughly. Wash clothing before re-use. Seek medical assistance.
 
EyeIf in eyes, hold eyes upen, flood with water for at least 15 minutes. Seek urgent medical assistance.
 
First Aid FacilitiesEye wash. Hand wash basin. Emergency shower.
 
Advice to DoctorSodium hydroxide is highly corrosive. Vomiting has not been induced because of risk of aspiration into the lungs. If swallowed, may cause holes in stomach and intestines. Evacuation of stomach should not be attempted. Contact Poisons Information Centre.
 
Other InformationM
 

 5. FIRE FIGHTING MEASURES

 
Suitable Extinguishing MediaWater fog or fine water spray.
 
Hazards from Combustion ProductsM
 
Specific MethodsIn case of small fire/explosion use water. In case of major emergency use PPE: breathing apparatus and protective gloves.
 
Specific HazardsNot flammable. Contact with aluminium, tin, zinc or galvanised iron may generate hydrogen, a flammable gas. Will react vigorously or violently with acids, generating much heat, and giving off carbon dioxide, a simple asphyxiant. Contact with ammonium compounds will generate ammonia, a poisonous gas.
 
Hazchem Code2X
 
Precautions in connection with FireM
 
Unsuitable Extinguishing MediaM
 

 6. ACCIDENTAL RELEASE MEASURES

 
Emergency ProceduresM
 
Methods and Materials for Containment and Clean Up ProceduresRemove all non-ferrous metals from area (aluminium, zinc and magnesium), if product has spilt on these metals immediately, flush them with plenty of water and shut off ignition sources, no smoking or flames in hazard area. Stop leak if you can do it without risk. Water spray may reduce vapour; but it may not prevent ignition in closed spaces.
 
Spills & DisposalSMALL SPILLS:
Take up with sand, dirt or vermiculite. Do NOT use sawdust. Use non-sparking tools. Place into labeled plastic drum(s) for later disposal.
LARGE SPILLS:
Notify Emergency Services (Police or Fire Brigade). Tell them exact location, nature, hazards, quantities, type of vehicle and any other information that would be helpful. Contain spill. Remove all ignition sources and safely stop flow of spill. Bund area. Trained personnel should wear Personal Protective equipment as highlighted in this MSDS. Blanket the spill with foam or use water fog to disperse vapour clouds. Consult an expert regarding disposal of this product.
 
Personal ProtectionWear protective clothing to prevent eye and skin contamination. Ensure an
eye bath and safety shower is available. Operators are recommended to wear
full protective clothing, glasses, gloves, apron etc. including footwear.
 
Environmental PrecautionsPrevent spills from entering drains and waterways. Contact local emergency
services if contamination of sewers or waterways occurs.
 
Other InformationProducts that contain alkali hydroxides must be kept away from non-ferrous metals, as extremely flammable hydrogen gas will be generated and if the appropriate flammability limits are reached and a source of ignition is present, a violent explosion will occur.
 

 7. HANDLING AND STORAGE

 
Precautions for Safe HandlingHandle according to good manufacturing and industrial hygiene practices. Do
not drink, eat or smoke while handling. Respect good personal hygiene.
 
Conditions for Safe StorageStore in a cool place and out of direct sunlight. Store away from sources of heat or ignition, strong acids, aluminium, zinc and magnesium or their alloys. All equipment must be earthed. Store in original packages as approved by manufacturer. Check all fittings, valves, reticulation (piping) and any ancillary equipment for leaks. A supplied air respirator or a self-contained breathing apparatus (SCBA) for emergencies should be available and checked regularly. For further information please refer to the Engineering Controls of this MSDS.
 
Storage RegulationsM
 
Unsuitable MaterialsStore away from acids. Hydrogen gas is generated when undiluted material contacts aluminium, zinc or tin.
 
Additional information on precautions for useMixing this product with strong mineral acids such as sulfuric, nitric and/or hydrochloric acid will result in a highly exothermic (releasing heat) reaction, which may lead to a fire and potential explosion.
 

 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

 
National Exposure Standards     Name STEL (mgm3) STEL (ppm) TWA (mgm3) TWA (ppm) FootNote
Sodium hydroxide2Peak limitation
 
Biological Limit ValuesM
 
Engineering ControlsDo not use aluminium, tin, zinc or galvanised iron as materials of construction. Use in a well ventilated area. If ventilation is insufficient use a corrosive - resistant ventilation system separate from other exhaust systems. Engineering control methods to reduce hazards are preferred.
 
Respiratory ProtectionM
 
Eye ProtectionM
 
Hand ProtectionM
 
Personal Protective EquipmentAvoid contact with skin and eyes. Avoid breathing dusts or aerosols. Personal protection to be selected from those recommended below, as appropriate to mode of use, quantity handled and degree of hazard:-
Face shield or safety glasses
Gloves, rubber or plastic
Plastic apron, sleeves and boots
Impervious overalls.
Select and use respirators in accordance with AS/NZS 1715/1716. When the concentration of airborne contaminants reach the exposure standards then the use of a half-face respirator with P1 filter is recommended. For high concentration use an atmosphere-supplied, positive pressure demand self-contained or airline breathing apparatus supplied air respirator complying with the requirements of AS/NZS 1715 is recommended. Filter capacity and respirator type depends on exposure levels and type of contaminant.
Always maintain a high level of personal hygiene when using cleaning chemicals. That is wash hands before eating, drinking, smoking or using the toilet.
 

 9. PHYSICAL AND CHEMICAL PROPERTIES

 
FormSolid
 
AppearanceWhite prills.
 
OdourSharp caustic
 
Decomposition TemperatureM
 
Melting Point318 °C
 
Boiling PointM
 
Solubility in WaterUp to 600 grams per litre with generation of heat.
 
Specific Gravity2.2 (bulk density)
 
pH ValuepH 1% solution: >13
 
Vapour PressureNone
 
Evaporation RateM
 
Odour ThresholdM
 
ViscosityM
 
Octanol/Water Partition CoefficientM
 
DensityM
 
Flash PointNone.
 
FlammabilityNot flammable. Contact with aluminium, tin, zinc or galvanised iron may generate hydrogen, a flammable gas.
 
Auto-Ignition TemperatureM
 
Flammable Limits - LowerM
 
Flammable Limits - UpperM
 
Kinematic ViscosityM
 
Dynamic ViscosityM
 
Explosion Limit - UpperM
 
Explosion Limit - LowerM
 
Other InformationHighly alkaline, will react violently with acids. Hygroscopic, will absorb moisture from the air. Will absorb carbon dioxide from the air, forming a coating of sodium carbonate. Will get hot when dissolved in water and may boil. Always add this material to water, never add water to this material. May boil explosively if added to hot water. Contact with active metals (such as aluminium, tin, zinc) may generate hydrogen, a flammable gas. Contact with ammonium compounds may generate ammonia, a toxic gas. May form shock-sensitive products with organic nitro compounds. May react vigorously, violently, catch fire or cause explosions with a wide variety of chemicals. Will attack wood and paper products, and glass on prolonged contact. May react with sugars to generate carbon monoxide, a toxic, odourless gas.
 

 10. STABILITY AND REACTIVITY

 
Chemical StabilityStable under normal use conditons.
 
Conditions to AvoidIncompatible materials, exposure to moisture or air. Reactions with mineral acids generate heat. Reaction with non-ferrous metals generates hydrogen gas which may cause explosion under appropriate conditions.
 
Incompatible MaterialsOxidising agents, acids, acidic materials, ammonium compounds, nitro compounds, organic halides, active metals, wood, paper, glass.
 
Hazardous Decomposition ProductsSodium oxide.
 
Hazardous ReactionsWill react violently with acids. May boil explosively if added to hot water. May form shock-sensitive products with organic nitro compounds. May react violently with organic halides. Contact with sugars may generate carbon monoxide.
 
Hazardous PolymerizationM
 

 11. TOXICOLOGICAL INFORMATION

 
Toxicology InformationNo adverse health effects are expected, if the product is handled in accordance with this Safety Data Sheet and the product label. Symptoms and effects that may arise if the product is mishandled and overexposure occurs are:
 
InhalationInhalation of dusts or concentrated mists may cause damage to the upper respiratory tract and lungs. Symptoms may range from a mild irritation of the mucous membranes, cough, a burning sensation, laboured breathing, sneezing, sore throat, a runny nose, to severe
pneumonitis (irritation and inflammation of lung tissues). Inhalation may also cause pulmonary oedema (fluid build-up in the lungs), with the potential to become a medical emergency. Onset of symptoms may be delayed for several hours.
 
IngestionMay be fatal. Causes very serious damage to the mucous membranes and any other tissues it comes into contact with. May cause swelling of the larynx and subsequent suffocation. May cause burns in the mouth and throat, nausea, vomiting, abdominal pains and diarrhoea (occasionally bloody), fall in blood pressure, heart failure, coma and death. May cause perforation of the stomach and intestines, and the sites of subsequent scarring have been associated with the later development of stomach cancer. Internal damage may not be apparent until
days after exposure, but may still prove fatal.
 
SkinCauses severe, deep burns. Exposure to dusts or mists may cause small burns, redness and a rash.
 
EyeCorrosive to eyes. Contact with the eyes rapidly causes severe damage to the tissues. May cause redness, pain, blurred vision. May cause severe, deep burns and permanent impairment to, or total loss of, sight.
 
Chronic EffectsProlonged contact may cause severe eye irritation and some form of permanent eye damage may occur. Prolonged or repeated skin contact will lead to necrosis (death) of the skin.
 
Acute Toxicity - OralLD50 Oral Mouse: 40 mg/kg
Oral Rat: 140-340 mg/kg
 

 12. ECOLOGICAL INFORMATION

 
EcotoxicityExtremely poisonous and corrosive/reactive in large amounts, particularly in aquatic environments.
 
Persistence / DegradabilityM
 
MobilityReadily transported by water.
 
Environmental FateThis substance may cause long term adverse effects in the aquatic environment.
 
Environment ProtectionAvoid contaminating waterways, drains, sewers, or ground.
 

 13. DISPOSAL CONSIDERATIONS

 
Disposal ConsiderationsM
 
Waste DisposalRefer to appropriate authority in your State. Dispose of material through a licensed waste contractor. Advise of caustic/alkali nature. Normally suitable for disposal by approved waste disposal agent.
 

 14. TRANSPORT INFORMATION

 
Transport InformationClassified as a Class 8 Dangerous Good. Dangerous Goods of Class 8 Corrosives are incompatible in a placard load with any of the following: - Class 1, Class 4.3, Class 5, Class 6, if the Class 6 dangerous goods are cyanides and the Class 8 dangerous goods are acids and Class 7. Store away from acids.
 
U.N. Number1823
 
Proper Shipping NameSODIUM HYDROXIDE, SOLID
 
DG Class8
 
Hazchem Code2X
 
Packing GroupII
 
EPG Number8A1
 
IERG Number37
 
IMDG Marine Pollutant (MP)M
 

 15. REGULATORY INFORMATION

 
Regulatory InformationHAZARDOUS SUBSTANCE.
SCHEDULED POISON.

Classified as Hazardous according to criteria of National Occupational Health & Safety Commission, Australia (NOHSC).
Classified as a Scheduled Poison according to the Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP).
 
Poisons ScheduleS6
 
Hazard CategoryCorrosive
 
AICS (Australia)All components listed.
 

 16. OTHER INFORMATION

 
Date of preparation or last revision of MSDS10/02/2021
 
Literature ReferencesPreparation of Safety Data Sheets for hazardous Chemicals Code of Practice
Standard for the Uniform Scheduling of Medicines and Poisons
Australian Code for the Transport of Dangerous Goods by Road & Rail
Globally Harmonised System of classification and labelling of chemicals
 
Signature of Preparer/Data ServiceTechnical manager Tel: (03) 9450 4555
 
Technical Contact NumbersEmergency Advice All Hours:
Chief Chemist Tel: (03) 9450 4555 Mon-Fri 8am - 6pm
Poisons Information Centre: 13 11 26 - 24hrs
 
Other InformationThis SDS summarises at the date of issue our best knowledge of the
health and safety hazard information of the product, and in particular how
to safely handle and use the product in the Workplace. Please refer to the
technical datasheet (Instructions for use), and the label on the drum. The
company cannot anticipate or control the individual working conditions
encountered and so each user should read this SDS carefully, and if in
doubt ring the Contact Point Number given below.
 

 End of MSDS

 

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Print Date: 11/05/2021 BS: 1.17.117