Caustic soda flakes – Identification of Product
Chemical Code: CHE-S
Chemical Name: Sodium Hydroxide Flake
Chemical Grade: Technical
Chemical Formula: NaOH
Chemical Weight: 40,00 g/mol
CAS No: 1310-73-2
Chemical Synonyms: Sodium hydroxide flakes
Caustic soda flakes – Hazards Identification
REACH No: 01-2119457892-27-XXXX
Signal Word: Danger
Supplemental Hazard Information:
Additional Hazard Information: No Data Available
Caustic soda flakes – Hazards statements
H290 – May be corrosive to metals.
H314 – Causes severe skin burns and eye damage.
Caustic soda flakes – Caustic flakes – Precautionary statements
P280 – Wear protective gloves/ protective clothing/ eye protection/ face protection.
P305 + P351 + P338 – IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310 – Immediately call a POISON CENTER or doctor/ physician.
Composition of Chemical
Chemical Formula: NaOH
EC No 1272/2008: 01-2119457892-27-XXXX
First Aid Measures
General Advice: Consult a physician. Show this safety data sheet to the doctor in attendance.
If: Inhaled: If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. If: Skin Contact: Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Consult a physician. If: Eye Contac: Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If: Swallowed: Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Important Symptoms: The most important known symptoms and effects are described in the labeling section. Immediate Medical Attention: No Data Available
Firefighting Measures
Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical or Carbon Dioxide.
Hazards Arising: Sodium Oxides
Advice for Firefighters: Wear self contained breathing apparatus for fire fighting if necessary.
Info for Firefighting: No Data Available
Caustic flakes – Accidental Release Measures
Personal Precautions: Wear respiratory protection.
Avoid dust formation.
Avoid breathing vapours, mist or gas.
Ensure adequate ventilation.
Evacuate personnel to safe areas.
Avoid breathing dust.
Enviromental Precautions: Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Method for Containment: Pick up and arrange disposal without creating dust.
Sweep up and shovel.
Keep in suitable, closed containers for disposal.
Handling and Storage
Personal Precautions: Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
Enviromental Precautions: Store in cool place.
Keep container tightly closed in a dry and well-ventilated place.
Caustic flakes – Exposure Controls | Personal Protection
Derived No Effect Level (DNEL)
Workers | Application Area | Exposure Routes | Health Effect | Value
Workers – Inhalation – Long-term local effects – 1 mg/m3
Consumers | Application Area | Exposure Routes | Health Effect | Value
Consumers – Inhalation – Long-term local effects – 1 mg/m3
Predicted No Effect Concentration (PNEC)
No Data Available
Engineering Controls: Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
Eye/Face Protection: Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin Protection: Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove’s outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Full contact – Material: Nitrile rubber. Minimum layer thickness: 0,11 mm
Break through time: 480 min. Material tested: Dermatril®
Splash contact – Material: Nitrile rubber. Minimum layer thickness: 0,11 mm
Break through time: 480 min. Material tested: Dermatril®
Data source: KCL GmbH, D-36124. Test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar
with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Body Protection: Complete suit protecting against chemicals. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory Protection: Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Physical and Chemical Properties
Appearance: White fused deliquescent flakes
Odour: Odourless
Odour Threshold: No Data Available
pH: 14 at 50 g/l at 20 °C
Melting Point: Melting point/range: 318 °C
Boiling Point: 1.390 °C
Flash Point: Not Applicable
Evaporation: No Data Available
Flammability: No Data Available
Upper/Lower Flammability or Explosive Limits: No Data Available
Vapour pressure: < 24,00 hPa at 20 °C
4,00 hPa at 37 °C
Vapour density: 1,38 – (Air = 1.0)
Relative density: 2,1300 g/cm3
Water solubility: ca.1.260 g/l at 20 °C
Partition Coefficien: No Data Available
Auto-ignition Temperature: No Data Available
Decomposition Temperature: No Data Available
Viscosity: No Data Available
Explosive properties: No Data Available
Oxidizing properties: No Data Available
Other Safety Info: Bulk density – ca.1.150 kg/m3.
Relative vapour density – 1,38 – (Air = 1.0)
Caustic flakes – Stability and Reactivity
Reactivity: No Data Available
Chemical Stability: Stable under recommended storage conditions.
Possibility of hazardous reactions: No Data Available
Conditions to Avoid: No Data Available
Incompatible Materials: Strong Oxidizing Agents, Strong Acids, Organic Materials
Hazardous Decomposition Products: Other decomposition products – No Data Available
Toxicological Information
Acute Toxicity: No Data Available
Skin Corrosion/Irritation: Rabbit
Result: Causes severe burns. – 24 h
Serious Eye damage | Eye Irritation: Rabbit
Result: Corrosive – 24 h
Cell Mutagenicity: No Data Available
Carcinogenicity: IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity: No Data Available
Specific Target Organ Toxicity – Single Exposure: No Data Available
Specific Target Organ Toxicity – Repeated Exposure: No Data Available
Aspiration Hazard: No Data Available
Toxicological Information
Acute Toxicity: No Data Available
Skin Corrosion/Irritation: Rabbit
Result: Causes severe burns. – 24 h
Serious Eye damage | Eye Irritation: Rabbit
Result: Corrosive – 24 h
Cell Mutagenicity: No Data Available
Carcinogenicity: IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity: No Data Available
Specific Target Organ Toxicity – Single Exposure: No Data Available
Specific Target Organ Toxicity – Repeated Exposure: No Data Available
Aspiration Hazard: No Data Available
Ecological Information
Ecological Toxicity: Toxicity to fish:
LC50 – Gambusia affinis (Mosquito fish) – 125 mg/l – 96 h
LC50 – Oncorhynchus mykiss (rainbow trout) – 45,4 mg/l – 96 h
Toxicity to daphnia and other aquatic invertebrates:
Immobilization EC50 – Daphnia – 40,38 mg/l – 48 h
Ecological Persistence and degradability: The methods for determining the biological degradability are not applicable to inorganic substances.
Bioaccumulative Potential: No Data Available
Mobility in Soil: No Data Available
Results of PBT and vPvB Assessment: PBT/vPvB assessment not available as chemical safety assessment not required/not conducted.
Other Adverse Effect: Harmful to aquatic life.
Disposal Considerations
Waste Treatment Methods: Product –
Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging – Dispose of as unused product.
Caustic soda flakes – Transport Information
UN Number: ADR/RID: 1823
IMDG: 1823
IATA: 1823
UN Shipping Hazard: ADR/RID: SODIUM HYDROXIDE, SOLID
IMDG: SODIUM HYDROXIDE, SOLID
IATA: Sodium hydroxide, solid
Transport Hazard Class: ADR/RID: 8
IMDG: 8
IATA: 8
Packaging Group: ADR/RID: II
IMDG: II
IATA: II
Enviromental Hazards: ADR/RID: no
IMDG Marine pollutant: no
IATA: no
Special Precautions: No Data Available
Regulatory Information
Safety, Health and environmental regulations: This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006
Chemical Safety Assessment: A Chemical Safety Assessment has been carried out for this substance. Additional Info: RTECS: WB4900000
Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin.
