| Naphthenic acid | - | Pure | |
| Grade | - | Crude or Distilled | |
| Acid Value Range | - | 100 - 230 Crude | |
| - | 140 - 270 Distilled | ||
| Unsaponifiables | - | Range 3% (highly distilled) to 35% (Crude) | |
| Gardner Colour | - | Range 10 (special) to 11/12 (standard) |
TYPICAL VALUES
| ACID VALUE RANGE 100-270 | COLOUR, max. GARDNER | VISCOSITY, Secs. Max. Redwood 1 @38Deg C | UNSAPS, % max, | |
| CRUDE | 170-195 | n/a | 350 | 20 |
| 195-220 | n/a | 350 | 14 | |
| DISTILLED | 180-200 | 10/12 | 220 | 15 |
| 220-240 | 10/12 | 160 | 10 |
Naphthenic acid is a mixture of various carboxylic acids which occur naturally in the oxygen rich fraction of crude petroleum. The most common class of acid is derived from cyclopentane and has the general formula CnH2n-202, where n = 8 to 12. This basic cyclopentane structure can be more or less highly alkylated. Other classes of acids include simple paraffinic acids of the general formula CnH2n02 where n = 5 to 8, and acids with larger more complicated molecules of the general formula CnH2-402 where n = 13 to 23.
The classes and proportions of individual naphthenic acids in the overall mix vary according to the origin of the crude oil. Immature or shallow crude oils generally have a higher proportion of naphthenic acids.
Naphthenic acids have a specific gravity of between 0.9 to 1.0. They are only slightly soluble in water but are easily soluble in hydrocarbon solvents. Naphthenic acids can be distilled under vacuum and in steam. In performance they resemble other fatty acids.
Summary of Product & Hazard Classifications & Regulatory Information
| CAS No: | 1338-24-5 | EINECS NO: | 215-662-8 | HAZARD SYMBOLS: | Xi | Irritant | N | Dangerous for the Environment | RISK PHRASES: | R36/37/38 | Irritating to eyes, respiratory system and skin | R51/53 | Toxic to aquatic organisms; may cause long term adverse effects in the aquatic environment | SAFETY PHRASES: | S24/25 | Avoid contact with skin and eyes | S36/327/39 | Wear suitable protective clothing, gloves and eye/face protection | S26 | In case of contact with eyes, rinse immediately with plenty of water and seek medical advice | S61 | Avoid release to the environment. Refer to special instructions and/or Safety Data Sheets before use | UN NO: | 3082 | Packing Group III | ADR/RID CLASS: | 9/11c | Environmentally hazardous substance | IMDG CODE CLASS: | 9 (Page 9028) | Marine Pollutant P | IATA/ICAO CLASS: | 9 | Environmentally hazardous substance |
| 01. Identification of the Substance/Preparation and the Company | |
| Product name: | Naphthenic Acid (Crude or Distilled grades) | Manufacturer/Supplier: | AGS Chemicals & Products Ltd, Leywood House, 47 Woodside Road,, Amersham Bucks, HP6 6AA |
Telephone: | +44(0) 1494 733999 (24 hours & Emergency) | Fax: | +44(0) 1494 733990 |
| 02. Composition/Information on Ingredients | |
| Dangerous Substance: | Naphthenic Acid |
| CAS: | 1338-24-5 |
| Range [%]: | 100% |
| Symbol/R-phrase: | Xi & N R36/37/38-51/53 |
| EINECS number: | 215-662-8 |
| 03. Hazards Identification | |
| R26/37/38: | Irritating to eyes, respiratory system and skin | R51/53: | Toxic to aquatic organisms; may cause long-term adverse effects in the aquatic environment |
| 04. First Aid Measures | |
| General information: | Change soaked clothing Seek medical advice. | Inhalation: | Ensure supply of fresh air. In the event of symptoms, refer for medical treatment. |
Skin contact: | In case of contact with skin, wash off immediately with soap and water. Consult a doctor if skin irritation persists. |
Eye contact: | In case of contact with eyes, rinse thoroughly with plenty of water and seek medical advice | Ingestion: | Rinse out mouth and give plenty of water to drink. Induce vomiting if patient is conscious and seek medical advice. Summon a doctor immediately. |
Advice to doctor/symptoms: | - | Advice to doctor/hazards: | - | Advice to doctor/treatment: | Treat symptomatically |
| 05. Fire Fighting Measures | |
| Suitable extinguishing media: | Water spray jet; Carbon dioxide; Dry powder; Foam | Extinguishing media that must not be used for safety reasons: | Full water jet | Special exposure hazards arising from the substance or preparation itself or combustion products: | Risk formation of toxic pyrolysis products | Special protective equipment for firefighters: | Use independent breathing apparatus | Additional information: | Collect contaminated firefighting water separately. It must not be discharged
into the drains. Cool containers at risk with water spray jet. |
| 06. Accidental Release Measures | |
| Personal precautions: | Use breathing apparatus if exposed to vapours/dust/aerosol. Ensure adequate ventilation |
| Environmental protection: | Prevent spread over a wide area (e.g. by containment or oil barriers). | Methods for cleaning up/taking up: | Take up with absorbent material (sand, sawdust, vermiculite) Dispose of absorbed material in accordance with regulations |
| 07. Handling & Storage | |
| Advice on safe handling: | Use only in well-ventilated areas | Advice on protection against fire and explosion: | No special measures necessary | Requirements for storage rooms and vessels: | Keep only in original container | Advice on storage compatability: | Do not store together with oxidizing agents. Do not store with alkaline bases. |
Further information on storage conditions: | Keep container in a well-ventilated place Keep container tightly closed Protect from heat/over-heating |
|
08. Exposure Controls and Personal Protection Additional advice on system design | Exposure Limits: | Substance:- CAS:- Value:- | Respiratory protection: | Breathing apparatus in the event of high concentrations Short term: filter apparatus, Filter P2 |
Hand protection: | Rubber gloves | Eye protection: | Protective goggles | Skin protection: | Not applicable | General protective measures: | Avoid contact with eyes and skin Do not inhale gases/vapours/aerosols |
Hygiene measures: | At work do not eat, drink, smoke or take drugs. Remove soiled or soaked clothing immediately. Wash hands before breaks and after work. Use barrier skin creams. |
| 09. Physical Chemical Properties | |
| Form: | Liquid | Colour: | Dark brown | Odour: | Unpleasant | pH value: | ca. 5 (saturated solution) | Melting point: | -35oC to +2oC | Boiling point: | 140o C to 200o | Flash point: | 110o C | Flammability: | - | Auto-ignition temperature: | - | Lower explosion limit: | - | Upper explosion limit: | - | Combustible properties: | No | Vapour pressure, 20o C: | - | Relative density: | 0.91 - 0.96 g/cm3 (15o C) | Solubility: | Virtually insoluble | Partition coefficient: | - (n-octanol/water) | Viscosity: | 30-360 mm2/s |
| 10. Stability & Reactivity | |
| Hazardous reactions: | Reactions with strong oxidizing agents Reactions with alkaline bases. | Hazardous decomposition products: | No hazardous decomposition products known |
| 11. Toxicological Information | |||
| Dimension | Species | Value | Acute oral toxicity: | LD50 | rat | 3000 mg/kg | Acute dermal toxicity: | LD50 | rabbit | - | Acute inhalational toxicity: | LD50 | rat | - | Irritant effect on skin: | - | - | - | Irritant effect on eye: | - | - | - | Sensitization: | - | - | - | Subacute toxicity: | - | - | - | Chronic toxicity: | - | - | - | Mutagenicity: | - | - | - | Reproduction toxicity: | - | - | - | Carcinogenicity: | - | - | - | Experiences made in practice: | No | - | - | General remarks: | Not applicable | - | - |
| 12. Ecological Information | |
| Physico-chemical eliminability: | Biological degradability: | Biological eliminability: | Degradability according to law of wash and cleansing agent: | Not applicable | Behaviour in environment compartments: | Fish toxicity: | Daphnia toxicity: | Bacteria toxicity: | Behaviour in sewage plant: | Chemical oxygen demand (COD): | Biochemical oxygen demand (BOD5): | Behaviour in sewage plant: | AOX-advice: | No dangerous components | Contains following Heavy metals and compounds: | No dangerous components | General information: | Product is insoluble in water |
| 13. Disposal Considerations | |
| Disposal/product: | For recycling, consult manufacturer Dispose of as hazardous waste |
| Disposal/contaminated packaging: | Packaging that cannot be cleaned should be disposed of as for product |
| 14. Transport Information | ||
| U-No: | 3082 | Land transport ADR/RID: | Class: | 9 | Division: | 11 | Group: | c) | Description: | Environmentally hazardous substance, liquid, n.o.s. (Naphthenic acid) | Marine transport IMDG-Code: | Class: | 9 | Packing Group: | III | EmS: | - | MFAF: | - | Marine Pollutant: | P | Proper Shipping Name: | Environmentally hazardous substance, liquid, n.o.s. (Naphthenic acid) | Air transport ICAO/IATA: | Class: | 9 | Packing Group: | III | Proper Shipping Name: | Environmentally hazardous substance, liquid, n.o.s. (Naphthenic acid) |
| 15. Regulatory Information | |
| Labelling: | The product is classified and must be labelled in accordance with EC Directives on dangerous substances | Hazard Symbols: |
|
| Risk Phrases: | R36/37/38: Irritating to eyes, respiratory system and skin | R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment | Safety Phrases: | S24/25: Avoid contact with skin and eyes. |
| S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. | |
| S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice | S61: Avoid release to the environment. Refer to special instructions/Safety Data Sheets before use |
| 16. Other Information | |
| Legislation: | This safety data sheet is in accordance with current EU requirements | Warning: | This information is based on our present knowledge and has been carefully compiled from existing literature. However this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship. AGS Chemicals & Products Limited does not accept any liability whatsoever arising out of the use of this information. | Compiled by: | AGS Chemicals & Products Ltd Leywood House, 47 Woodside Road,, Amersham Bucks, HP6 6AA. U.K. Phone: +44(0) 1494 733999 Fax: +44(0) 1494 733990 |
