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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 211-402-2 | CAS number: 643-79-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Guidance on Safe Use
Administrative data
First-aid measures
- Following inhalation: In case of unconsciousness place patient stably in side position for transportation.
- Following skin contact: Immediately wash with water and soap and rinse thoroughly.
- Following eye contact: Call a doctor immediately. Remove contact lenses immediately!
- Following ingestion: Rinse opened eye for several minutes under running water. Then consult a doctor. Do not induce vomiting; immediately call for medical help. Drink copious amounts of water and provide fresh air. Immediately call a doctor.
- Most important symptoms and effects: Contact with dust may cause irritation of mucous membranes.
Corrosion, cough, risk of eye damage/blindness, perforation of the stomach, difficulty in breathing, allergic reaction, Sensitization possible through skin contact. Burning of eyes, mucous membranes and skin. Coughing, headache, indisposition, shortness of breath.
- Skin: Strong irritating/corrosive action. Irritating action through sensitization.
- Eyes: Strong irritation with danger of serious damage to eyes.
- Respiratory tract: After breathing of dust possible irritation of nose, respiratory tract, lungs: Cough, shortness of breath. Strong irritating action on whole respiratory tract.
- Hazards and systemic effects: Strong irritating effect after breathing of dust and contact with eyes.
Sensitization possible through skin contact. Extremely corrosive action on mucous membranes of upper respiratory tract as well as eyes and skin. After contact with this material possibly corrosive action on skin and
mucous membranes.
- Possible routes of intake: Intake by swallowing or inhalation of dust.
- Target organs: Skin, eyes, mucous membranes. Respiratory tract
- Chronic effects: Sensitization
Fire-fighting measures
- Unsuitable extinguishing media: No restriction in large fires.
- Special hazards arising from the substance or mixture: Very high danger of dust explosions. In case of fire, the following can be released: Carbon monoxide (CO)
- Advice for fire fighter:
- Protective equipment: Wear self-contained respiratory protective device. Chemical resistant protective suit. Under the protective suit a fire protective suit according to EN 469 should be applied. Use chemical protective suit and self-contained breathing apparatus while undressing contaminated co-workers or handling contaminated equipment.
- Additional information: Dispose of fire debris and contaminated firefighting water in accordance with official regulations. Collect contaminated firefighting water separately. It must not enter the sewage system.
Accidental release measures
- Environmental precautions: Do not allow to enter sewers/ surface or ground water. Inform respective authorities in case of seepage into water course or sewage system. Keep contaminated washing water and dispose of appropriately.
- Methods and material for containment and cleaning up: Pick up mechanically. Ensure adequate ventilation. Possible formation of explosive dust/air mixtures. Dispose contaminated material as waste according to item 13.
Handling and storage
- Conditions for safe storage, including any incompatibilities:
- Requirements to be met by storerooms and receptacles: Store in a dry location, protected from humidity.
- Corrosion to metals: It should generally be borne in mind that there is a possibility of corrosion on contact with this material. Resistance should be checked in each individual case.
- Information about storage in one common storage facility: Store away from oxidizing agents.
- Further information about storage conditions: None.
- Maximum storage temperature: +8 °C
- Storage stability: No data available.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- UN2923
Shipping information
- Proper shipping name and description:
- 2923 CORROSIVE SOLID, TOXIC, N.O.S. (o-Phthalaldehyde), ENVIRONMENTALLY HAZARDOUS
- Chemical name:
- o-Phthalaldehyde
- Language:
- English
- Labels:
- 8+6.1
Special provisions / remarks
- Remarks:
- Special precautions for user: Warning: Corrosive substances
Danger code (Kemler): 86
EMS Number: F-A,S-B
Stowage Category: B
Stowage Code: SW2 Clear of living quarters.
Shippingopen allclose all
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
- UN number:
- UN2923
Shipping information
- Proper shipping name and description:
- CORROSIVE SOLID, TOXIC, N.O.S. (o-Phthalaldehyde), MARINE POLLUTANT
- Chemical name:
- o-Phthalaldehyde
- Labels:
- 8/6.1
- Marine pollutant
Special provisions / remarks
- Remarks:
- Special precautions for user: Warning: Corrosive substances
Danger code (Kemler): 86
EMS Number: F-A,S-B
Stowage Category: B
Stowage Code: SW2 Clear of living quarters.
Air transport (UN RTDG/ICAO/IATA)
- UN number:
- UN2923
Shipping information
- Proper shipping name and description:
- CORROSIVE SOLID, TOXIC, N.O.S. (o-Phthalaldehyde)
- Chemical name:
- o-Phthalaldehyde
- Labels:
- 8 (6.1)
Special provisions / remarks
- Remarks:
- Special precautions for user: Warning: Corrosive substances
Danger code (Kemler): 86
EMS Number: F-A,S-B
Stowage Category: B
Stowage Code: SW2 Clear of living quarters.
SpecialProvisionsopen allclose all
Exposure controls / personal protection
- Components with limit values that require monitoring at the workplace: Not required.
- Recommendation of supplier: 0.16 mg/m³ 8h (ECETOC TR 101 Hazard Banding)
- General protective and hygienic measures Contaminated protective suit shall be cleaned before taking it off. Keep away from foodstuffs, beverages and feed. Immediately remove all soiled and contaminated clothing. Wash hands before breaks and at the end of work. Store protective clothing separately. Avoid contact with the eyes and skin. Hint: Material may cause sensitisation by inhalation or skin contact.
- Breathing equipment: Short term filter device: Filter P2
- Protection of hands: Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation. For the permanent contact gloves made of the following materials are suitable: Nitrile rubber, NBR; Replace damaged gloves. The following materials are known from experience to be suitable for protection against undissolved solids: rubber.
- Eye protection: Tightly sealed goggles.
- Body protection: Use protective suit with self-contained breathing apparatus.
Stability and reactivity
- Possibility of hazardous reactions: Very high danger of dust explosions. Violent reactions with strong alkalis and oxidizing agents Formation of explosive dust/air mixtures is possible.
- Conditions to avoid: Heating
- Incompatible materials: Strong oxidising agents, amines, acids and bases.
- Hazardous decomposition products: Carbon monoxide, Carbon monoxide and carbon dioxide
Disposal considerations
- Recommendation: Must not be disposed of together with household garbage. Do not allow product to reach sewage system. Must be specially treated adhering to official regulations. Recovery or recycling if possible.
- Uncleaned packagings: Recommendation: Empty contaminated packagings thoroughly. They can be recycled after thorough and proper cleaning. Contaminated containers or containers with residual amounts must be treated as hazardous wastes.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.