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Nonanoic acid
 
 
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Nonanoic acid, also called pelargonic acid, is an organic compound
Organic compound

An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of compounds such as carbonates, simple oxides of carbon and cyanides, as well as the allotropes of carbon, are considered Inorganic compound....
 composed of a nine-carbon chain terminating in a carboxylic acid
Carboxylic acid

Carboxylic acids are organic acids characterized by the presence of a carboxyl group, which has the Chemical formula -COH, usually written -COOH or -CO2H....
 with structural formula
Structural formula

The structural formula of a chemical compound is a graphical representation of the molecular structure showing how the atoms are arranged. The chemical bonding within the molecule is also shown, either explicitly or implicitly....
 CH3(CH2)7COOH. Nonanoic acid forms ester
Ester

An ester is an often Aroma compound organic chemistry or partially organic compound formed by the reaction between an acid and an alcohol or aromatic alcohol with the elimination of water....
s - nonanoates. It is a clear, oily liquid with an unpleasant, rancid odor. It is nearly insoluble in water, but very soluble in chloroform
Chloroform

Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with chemical formula CarbonHydrogenChlorine3....
, ether
Ether

Ether is a class of organic compounds which contain an ether functional group ? an oxygen atom connected to two alkyl or aryl groups ? of general formula R?O?R....
, and hexane
Hexane

Hexane is an alkane hydrocarbon with the chemical formula CH34CH3 or C6H14. The "hex" prefix refers to its six carbons, while the "ane" ending indicates that its carbons are connected by single bonds....
.

Its refractive index is 1.4322. Its critical point
Critical point

Critical point may refer to:*Critical point *Critical point *Critical point See also*Brillouin zone*Percolation thresholds...
 is at 712 K (439 °C) and 2.35 MPa.

noic acid is a fatty acid
Fatty acid

In chemistry, especially biochemistry, a fatty acid is a carboxylic acid often with a long unbranched aliphatic tail , which is either saturation or Unsaturated compound....
 which occurs naturally as esters in the oil of pelargonium
Pelargonium

Pelargonium is a genus of flowering plants which includes about 200 species of perennial plants, succulent plants, and shrubs, commonly known as geraniums or storksbills....
.






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Nonanoic acid, also called pelargonic acid, is an organic compound
Organic compound

An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of compounds such as carbonates, simple oxides of carbon and cyanides, as well as the allotropes of carbon, are considered Inorganic compound....
 composed of a nine-carbon chain terminating in a carboxylic acid
Carboxylic acid

Carboxylic acids are organic acids characterized by the presence of a carboxyl group, which has the Chemical formula -COH, usually written -COOH or -CO2H....
 with structural formula
Structural formula

The structural formula of a chemical compound is a graphical representation of the molecular structure showing how the atoms are arranged. The chemical bonding within the molecule is also shown, either explicitly or implicitly....
 CH3(CH2)7COOH. Nonanoic acid forms ester
Ester

An ester is an often Aroma compound organic chemistry or partially organic compound formed by the reaction between an acid and an alcohol or aromatic alcohol with the elimination of water....
s - nonanoates. It is a clear, oily liquid with an unpleasant, rancid odor. It is nearly insoluble in water, but very soluble in chloroform
Chloroform

Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with chemical formula CarbonHydrogenChlorine3....
, ether
Ether

Ether is a class of organic compounds which contain an ether functional group ? an oxygen atom connected to two alkyl or aryl groups ? of general formula R?O?R....
, and hexane
Hexane

Hexane is an alkane hydrocarbon with the chemical formula CH34CH3 or C6H14. The "hex" prefix refers to its six carbons, while the "ane" ending indicates that its carbons are connected by single bonds....
.

Its refractive index is 1.4322. Its critical point
Critical point

Critical point may refer to:*Critical point *Critical point *Critical point See also*Brillouin zone*Percolation thresholds...
 is at 712 K (439 °C) and 2.35 MPa.

Occurrence and uses

Nonanoic acid is a fatty acid
Fatty acid

In chemistry, especially biochemistry, a fatty acid is a carboxylic acid often with a long unbranched aliphatic tail , which is either saturation or Unsaturated compound....
 which occurs naturally as esters in the oil of pelargonium
Pelargonium

Pelargonium is a genus of flowering plants which includes about 200 species of perennial plants, succulent plants, and shrubs, commonly known as geraniums or storksbills....
. Synthetic esters, such as methyl nonanoate, are used as flavorings.

Nonanoic acid is also used in the preparation of plasticizer
Plasticizer

Plasticizers or Dispersants are additives that increase the plasticity or fluidity of the material to which they are added, these include plastics, cement, concrete, wallboard and clay bodies....
s and lacquer
Lacquer

In a general sense, lacquer is a clear or coloured varnish that dries by solvent evaporation and often a curing process as well that produces a hard, durable finish, in any sheen level from ultra matte to high Gloss and that can be further polished as required....
s and as a herbicide
Herbicide

A herbicide is used to kill unwanted plants. Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by interfering with the growth of the weed and are often synthetic "imitations" of plant hormones....
.

The derivative 4-nonanoylmorpholine
4-Nonanoylmorpholine

4-Nonanoylmorpholine is an amide of pelargonic acid and morpholine....
 is an ingredient in some pepper spray
Pepper spray

Pepper spray, also known as OC spray , OC gas, and capsicum spray, is a lachrymatory agent that is used in riot control, crowd control, and personal self-defense, including defense against dogs and bears....
s.

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