- Naphthenic acid
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| Name |
Naphthenic acid |
EINECS | 215-662-8 |
| CAS No. | 1338-24-5 | Density | 0.972 g/cm3 |
| PSA | 37.30000 | LogP | 1.42730 |
| Solubility | insoluble in water | Melting Point |
N/A |
| Formula | C10H18O2 | Boiling Point | 268.2 °C at 760 mmHg |
| Molecular Weight | 170.2487 | Flash Point | 127.4 °C |
| Transport Information | UN 3082 9/PG 3 | Appearance | clear yellowish to brown viscous liquid |
| Safety | 26-36-61 | Risk Codes | 36/37/38-51/53 |
| Molecular Structure |
|
Hazard Symbols |
 Xi, Xn
|
| Synonyms |
Acidol(petroleum by-product);Carboxylic acids, naphthenic;ISAN 185;NA 165;NA 200(acid);NS 130;NS 160;NY 160;NY 200;SNA 180;SNA 185;SP230;Sunaptic B;Tensioactiv N; |
Naphthenic acid Chemical Properties
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IUPAC Name: 3-(3-Ethylcyclopentyl)propanoic acid
Empirical Formula: C10H18O2
Molecular Weight: 170.2487
Canonical SMILES: CCC1CCC(C1)CCC(=O)O
InChI: InChI=1S/C10H18O2/c1-2-8-3-4-9(7-8)5-6-10(11)12/h8-9H,2-7H2,1H3,(H,11,12)
InChIKey: WVRFSLWCFASCIS-UHFFFAOYSA-N
Index of Refraction: 1.459
Molar Refractivity: 47.9 cm3
Molar Volume: 174.9 cm3
Surface Tension: 36.4 dyne/cm
Density: 0.972 g/cm3
Flash Point: 127.4 °C
Enthalpy of Vaporization: 55.73 kJ/mol
Boiling Point: 268.2 °C at 760 mmHg
Vapour Pressure: 0.00223 mmHg at 25 °C
FreezingPoint -30 - -36 °C
EINECS: 215-662-8
Classification Code of Naphthenic acid (CAS NO.1338-24-5): TSCA UVCB
Naphthenic acid Uses
Naphthenic acid is a complex of carboxylic acids.It is used in deicing, dust control, wood preservative and road stabilization. It's industrial applications include the production of metallic naphthenates, synthetic detergents and as a solvents. as a lubricant, Corrosion inhibitor and fuel additive.
Naphthenic acid Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | intraperitoneal | 640mg/kg (640mg/kg) | BEHAVIORAL: FOOD INTAKE (ANIMAL) GASTROINTESTINAL: PERITONITIS | AMA Archives of Industrial Health. Vol. 12, Pg. 477, 1955. |
| rat | LD50 | oral | 3gm/kg (3000mg/kg) | BEHAVIORAL: FOOD INTAKE (ANIMAL) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" GASTROINTESTINAL: OTHER CHANGES | AMA Archives of Industrial |
Naphthenic acid Consensus Reports
Reported in EPA TSCA Inventory.
Naphthenic acid Safety Profile
Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard Codes: 
Xi,
N
Risk Statements: 36/37/38-51/53
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 Statements: 26-36-61
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3082 9/PG 3
WGK Germany :2
RTECS: QK8750000
Naphthenic acid Specification
Naphthenic acid (CAS NO.1338-24-5), its Synonyms are Acide naphtenique ; Agenap ; Carboxylic acids, naphthenic ; Sunaptic acid B ; Sunaptic acid C ; Naphthenic acids . It is a dark colored liquid with an offensive odor .
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