| Identification | Back Directory | [Name]
NAPHTHENIC ACID | [CAS]
1338-24-5 | [Synonyms]
agenap
naphid
sunapticacidb
NAPHTENIC ACID
sunaptic acid c
NAPHTHENIC ACID
NAPHTHENIC ACIDS
3-NAPHTHENIC ACID
Antiwear agent 1602
AcidUM TranexaMicuM
Naphthenic acid,refined
Naphthenic acids, pract.
Naphthenic acid technical
Naphthenic acid,degreased
carboxylicacids,naphthenic
cyclohexanecarbaroxylic acid
NAPHTHENIC ACID, ACID VALUE 220-230
Naphthenic Acid (Neutralization value : ca. 220)
NAPHTHENICACIDANDITSSODIUM,CALCIUMANDMANGANESESALTS | [EINECS(EC#)]
215-662-8 | [Molecular Formula]
C7H10O2 | [MDL Number]
MFCD00147696 | [MOL File]
1338-24-5.mol | [Molecular Weight]
126.154 |
| Chemical Properties | Back Directory | [Appearance]
Naphthenic acid is a gold to black, odorless
liquid. | [Boiling point ]
160-198 °C (6 mmHg)
| [density ]
0.92 g/mL at 20 °C(lit.)
| [vapor pressure ]
31.4Pa at 25℃ | [refractive index ]
n20/D 1.45
| [Fp ]
149 °C
| [solubility ]
Practically insoluble in water | [form ]
Liquid | [pka]
5[at 20 ℃] | [color ]
Clear colorless to yellow-brown | [Water Solubility ]
88.1mg/L at 20℃ | [FreezingPoint ]
-30~-36℃ | [InChIKey]
VUSWCWPCANWBFG-UHFFFAOYSA-N | [LogP]
7.65 | [EPA Substance Registry System]
Naphthenic acids(1338-24-5) |
| Hazard Information | Back Directory | [Chemical Properties]
CLEAR YELLOWISH TO BROWN VISCOUS LIQUID | [General Description]
NAPHTHENIC ACID is a dark colored liquid with an offensive odor. NAPHTHENIC ACID is insoluble in water. NAPHTHENIC ACID will burn though NAPHTHENIC ACID may take some effort to ignite. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since NAPHTHENIC ACID is a liquid NAPHTHENIC ACID can easily penetrate the soil and contaminate groundwater and nearby streams. NAPHTHENIC ACID is used to make paint dryers, detergents, and solvents. | [Air & Water Reactions]
Insoluble in water. | [Reactivity Profile]
NAPHTHENIC ACID is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in NAPHTHENIC ACID to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. | [Health Hazard]
Principal effect is that of mild primary irritation when encountered in high concentrations. Inhalation of vapor causes coughing. Liquid is moderately irritating to eyes and slightly to moderately irritating to skin; excessive exposure could result in dermatitis. | [Potential Exposure]
Used to make metallic naphthenates
for paint dryers and cellulose preservatives. It is also used
as a solvent; detergent, rubber reclaiming agent. Used in
catalysts, cutting oils; drilling compounds; rust inhibitors;
surfactants, emulsions, grease, and wood preservatives. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including
resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical
attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit. | [Shipping]
UN3082 Environmentally hazardous substances,
liquid, n.o.s., Hazard Class: 9; Labels: 9-Miscellaneous
hazardous material, Technical Name Required. | [Incompatibilities]
Compounds of the carboxyl group react
with all bases, both inorganic and organic (i.e., amines)
releasing substantial heat, water, and a salt that may be
harmful. Incompatible with arsenic compounds (releases
hydrogen cyanide gas), diazo compounds, dithiocarbamates,
isocyanates, mercaptans, nitrides, and sulfides
(releasing heat, toxic, and possibly flammable gases), thiosulfates
and dithionites (releasing hydrogen sulfate and
oxides of sulfur). Incompatible with sulfuric acid, caustics,
ammonia, aliphatic amines; alkanolamines, isocyanates,
alkylene oxides; epichlorohydrin, strong oxidizers.
Corrosive to metals. | [Uses]
Naphthenic acid is commonly used in the synthesis of useful metal naphthenates such as copper naphthenate, a wood preservative; titanium naphthenate, a precursor for the preparation of titanium oxide thin films and a rare earth naphthenate, a lubricant oil additive. It can also be in the synthesis of biodegradable naphthenic acid ionic liquids. | [Uses]
The term naphthenic acid, as commonly used in the petroleum industry, refers collectively to all of the carboxylic acids present in crude oil. | [Flammability and Explosibility]
Notclassified |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,N | [Risk Statements ]
36/37/38-51/53-52-43-36/38 | [Safety Statements ]
26-36-61-36/37 | [RIDADR ]
UN 3082 9/PG 3
| [WGK Germany ]
2
| [RTECS ]
QK8750000
| [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
38249099 | [Safety Profile]
Moderately toxic by
ingestion and intraperitoneal routes. When
heated to decomposition it emits acrid
smoke and irritating fumes. | [Hazardous Substances Data]
1338-24-5(Hazardous Substances Data) | [Toxicity]
rat,LD50,intraperitoneal,640mg/kg (640mg/kg),BEHAVIORAL: FOOD INTAKE (ANIMAL)GASTROINTESTINAL: PERITONITIS,AMA Archives of Industrial Health. Vol. 12, Pg. 477, 1955. |
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