What is salicylic acid derived from?
willow trees
Salicylic acid (2-hydroxybenzoic acid) is a white solid first isolated from the bark of willow trees (Salix spp.), from which it gets its name. It also occurs as the free acid or its esters in many plant species.
Is salicylic acid an organic compound?
Salicylic acid is one of the organic compounds from which aspirin can be synthesised.
How is salicylic acid obtained?
Salicylic acid is produced commercially via the Kolbe-Schmitt process. Here phenol and sodium hydroxide are reacted to make sodium phenoxide. The phenoxide is contacted with CO2 to form sodium salicylate. The salicylate is acidified to give salicylic acid.
What is a natural source of salicylic acid?
White willow (Salix alba) is a natural source of salicylic acid.
What plants have salicylic acid?
List of useful salicylates present in various plants.
| Salicylates | Plant source | Use |
|---|---|---|
| Salicina | Aspen (Populus tremula) Black haw (Viburnum prunifolium) White willow (Salix alba) Meadowsweet (Spiraea ulmaria) | Analgesic, antipyretic, anti-inflammatory |
Is salicylic acid organic or inorganic?
Salicylic acid is an organic compound with the formula HOC6H4CO2H. A colorless, bitter-tasting solid, it is a precursor to and a metabolite of aspirin (acetylsalicylic acid). It is a plant hormone. The name is from Latin salix for willow tree.
Is salicylic acid pure or impure?
Salicylic acid contains a phenol group, but acetylsalicylic acid does not. Therefore, if you add FeCl3 to an aspirin sample and you see a purple color, it means that there is still some salicylic acid present and the sample is impure.
Why do plants produce salicylic acid?
Salicylic acid increases the plant’s response to tolerance and resistance to various diseases affecting plants as it is found that increasing its internal concentration activates the protective role of pathogenic pathogens [6].
Is salicylic acid soluble in oil?
The solubility of salicylic acid is, according to Moncorps,3 as follows: One part of salicylic acid dissolves in 13 parts of boiling water, in 444 parts of water at a temperature of 15 C., in 500 parts of water at 20 C., in 60 parts of glycerin, in 45 parts of olive oil and in 7 parts of castor oil.
Is salicylic acid water soluble?
Salicylic acid
| Names | |
|---|---|
| Sublimation conditions | Sublimes at 76 °C |
| Solubility in water | 1.24 g/L (0 °C) 2.48 g/L (25 °C) 4.14 g/L (40 °C) 17.41 g/L (75 °C) 77.79 g/L (100 °C) |
| Solubility | Soluble in ether, CCl4, benzene, propanol, acetone, ethanol, oil of turpentine, toluene |
Do plants produce salicylic acid?
Salicylic acid and its derivatives as one of the plant hormones produced by the plant naturally belongs to the group of phenolic acids and consists of a ring linked to the group of hydroxyl and carboxyl group, and the starting ingredient to form is the cinnamic acid (Figure 1).
What naturally contains salicylic acid?
Where does the compound salicylic acid come from?
Salicylic acid (SA) is a simple phenolic compound synthesized in a wide range of prokaryotic and eukaryotic organisms, including plants. Leaf and bark of willow tree (Salix sp.) contain large amounts of SA, which was widely used as a medication for pain relief in the ancient world.
What are the functions of salicylic acid in plants?
Natural salicylates: foods, functions and disease prevention Salicylic acid and related compounds are produced by plants as part of their defence systems against pathogen attack and environmental stress.
What is the pH level of salicylic acid?
Salicylic acid, meets analytical specification of Ph. Eur., BP, USP, 99.5-100.5% (calc. to the dried substance) Salicylic acid is an odorless white to light tan solid. Sinks and mixes slowly with water.
Where did the discovery of salicylates come from?
First identified in myrtle and willow, the medical use of salicylate-rich preparations as anti-inflammatory and antipyretic treatments may date back to the third millennium BC. It is now known that salicylates are widely distributed throughout the plant kingdom, and they are therefore present in plant products of dietary relevance.
