Adipic acid(cas124-04-9) or hexanedioic acid is a white crystalline organic compound that is widely used as a precursor for the production of nylon and other polymers. Adipic acid has the chemical formula C6H10O4 and the CAS number 124-04-9. This article provides a brief overview of the safety data sheet (SDS) of adipic acid, based on the information from various sources.
The SDS of adipic acid should include the following information:
- Product name: Adipic acid
- Synonyms: Hexanedioic acid
- Product number: A26357 (Sigma)
- Index number: 607-144-00-9
- CAS number: 124-04-9
- EINECS number: 204-673-3
- Relevant identified uses: Laboratory chemicals, R&D use only
- Uses advised against: Food, drug, pesticide or biocidal product use
- Supplier details: Sigma-Aldrich, Inc., SHANDONG QIBO NEW ENERGY CO., LTD., Saint Louis, MO 63103, USA
The SDS of hexanedioic acid(cas124-04-9) should classify the substance according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as follows:
- Signal word: Danger
- Hazard statements:
- H318: Causes serious eye damage
- H335: May cause respiratory irritation
- H372: Causes damage to organs through prolonged or repeated exposure
- H412: Harmful to aquatic life with long lasting effects
- Precautionary statements:
- P260: Do not breathe dust/fume/gas/mist/vapours/spray
- P264: Wash hands and skin thoroughly after handling
- P270: Do not eat, drink or smoke when using this product
- P271: Use only outdoors or in a well-ventilated area
- P273: Avoid release to the environment
- 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
- P314: Get medical advice/attention if you feel unwell
- P403+P233: Store in a well-ventilated place. Keep container tightly closed
- P405: Store locked up
- P501: Dispose of contents/container in accordance with local/regional/national/international regulations
The SDS of adipic acid should also provide pictograms, such as:
The SDS of adipic acid(cas124-04-9) should describe the first aid measures for different routes of exposure, such as:
- Eye contact: Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.
- Skin contact: Wash off immediately with plenty of water for at least 15 minutes. If skin irritation persists, call a physician.
- Inhalation: Remove to fresh air. If not breathing, give artificial respiration. Get medical attention if symptoms occur.
- Ingestion: Clean mouth with water and drink afterwards plenty of water. Get medical attention if symptoms occur.
The SDS of adipic acid should also indicate the most important symptoms and effects, both acute and delayed, such as:
- Eye damage, redness, pain, blurred vision
- Respiratory irritation, coughing, sneezing, shortness of breath
- Organ damage, liver and kidney dysfunction, metabolic acidosis
The SDS of adipic acid should also advise on any immediate medical attention and special treatment needed, such as:
- Treat symptomatically and supportively
- Monitor vital signs and organ functions
The SDS of adipic acid should specify the suitable and unsuitable extinguishing media, such as:
- Suitable extinguishing media: Water spray, carbon dioxide (CO2), dry chemical, alcohol-resistant foam
- Unsuitable extinguishing media: No information available
The SDS of adipic acid should also describe the specific hazards arising from the substance or mixture, such as:
- Carbon oxides (COx)
- Combustible
The SDS of adipic acid should also recommend the protective equipment and precautions for firefighters, such as:
- Wear self-contained breathing apparatus and protective clothing
- Avoid contact with skin, eyes and clothing
- Prevent fire-fighting water from entering environment
Accidental Release Measures
The SDS of adipic acid should provide the personal precautions, protective equipment and emergency procedures, such as:
- Evacuate personnel to safe areas
- Wear suitable protective equipment
- Avoid dust formation and inhalation
- Ensure adequate ventilation
The SDS of adipic acid should also provide the environmental precautions, such as:
- Do not let product enter drains
- Prevent further leakage or spillage if safe to do so
- Contain spillage with sand or other inert material
The SDS of adipic acid should also provide the methods and materials for containment and cleaning up, such as:
- Sweep up or vacuum and place in suitable disposal container
- Wash contaminated area with water
- Dispose of waste according to local regulations
The SDS of adipic acid(cas124-04-9) should describe the precautions for safe handling, such as:
- Avoid contact with skin, eyes and clothing
- Do not breathe dust/fume/gas/mist/vapours/spray
- Use only in well-ventilated areas
- Wear suitable protective equipment
- Wash hands and skin thoroughly after handling
The SDS of adipic acid should also describe the conditions for safe storage, such as:
- Keep container tightly closed in a dry and well-ventilated place
- Store away from heat, sources of ignition and incompatible materials
- Store locked up
The SDS of adipic acid should provide the control parameters, such as occupational exposure limits, biological limit values or other exposure limit values, such as:
| Substance | CAS No | OEL (mg/m3) | OEL (ppm) | Source |
|---|---|---|---|---|
| Adipic acid | 124-04-9 | 5 (TWA) | – | ACGIH |
| Adipic acid | 124-04-9 | 5 (TWA) | – | OSHA |
The SDS of adipic acid should also provide the appropriate engineering controls, such as:
- Ensure adequate ventilation, especially in confined areas
- Use local exhaust ventilation or other engineering controls to keep airborne levels below recommended exposure limits
The SDS of adipic acid should also provide the individual protection measures, such as personal protective equipment (PPE), such as:
| PPE Category | Specification |
|---|---|
| Eye/face protection | Safety glasses with side-shields or goggles |
| Skin protection | Protective gloves (e.g. nitrile, PVC) and clothing (e.g. lab coat) |
| Respiratory protection | Dust mask or respirator if exposure limits are exceeded |
| Thermal hazards | No data available |
The SDS of hexanedioic acid should provide the information on basic physical and chemical properties, such as:
| Property | Value |
|---|---|
| Appearance | White crystalline solid |
| Odor | Odorless |
| Odor threshold | No data available |
| pH | 2.7 (1% solution) |
| Melting point/freezing point | 152 °C / 306 °F |
| Boiling point/range | 337 °C / 639 °F |
| Flash point | 196 °C / 385 °F |
| Evaporation rate | No data available |
| Flammability (solid, gas) | No data available |
| Upper/lower flammability or explosive limits | No data available |
| Vapor pressure | <0.01 mmHg at 20 °C / 68 °F |
| Vapor density | No data available |
| Relative density | 1.36 g/mL at 20 °C / 68 °F |
| Solubility(ies) | Soluble in water, alcohol, acetone; insoluble in ether, benzene, chloroform |
| Partition coefficient: n-octanol/water | -0.08 (log Pow) |
| Autoignition temperature | 420 °C / 788 °F |
| Decomposition temperature | No data available |
| Viscosity | No data available |
Stability and Reactivity
The SDS of hexanedioic acid should provide the information on the reactivity and chemical stability of the substance or mixture, such as:
- Reactivity: No data available
- Chemical stability: Stable under recommended storage conditions
- Possibility of hazardous reactions: No data available
- Conditions to avoid: Heat, sources of ignition, moisture
- Incompatible materials: Strong oxidizing agents, strong bases, metals
- Hazardous decomposition products: Carbon oxides (COx)
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