9046-40-6 Usage
Description
Pectic acid, also known as pectic substances, is a group of complex polysaccharides found in the cell walls of plants. It is composed of galacturonic acid units and has varying degrees of neutralization. Pectic acid forms strong resilient films and fibers and has the ability to gel in the presence of calcium or other divalent cations.
Uses
Used in Food Industry:
Pectic acid is used as a gelling agent for jams, jellies, and other food products. It provides the desired texture and stability to these products.
Used in Pharmaceutical Industry:
Pectic acid is used as a pharmaceutical excipient, particularly in the formulation of tablets and capsules. It enhances the stability and bioavailability of the active ingredients.
Used in Cosmetic Industry:
Pectic acid is used as a thickening agent and stabilizer in cosmetic products, such as creams, lotions, and gels. It improves the texture and consistency of these products.
Used in Textile Industry:
Pectic acid is used as a fiber in the textile industry. It forms strong resilient films and fibers, making it suitable for various applications, such as clothing, upholstery, and other textiles.
Used in Biomedical Applications:
Pectic acid is used in the development of hydrogels for tissue engineering and drug delivery systems. Its ability to gel in the presence of divalent cations makes it a promising candidate for these applications.
Purification Methods
Citrus pectic acid (500g) is refluxed for 18hours with 1.5L of 70% EtOH, and the suspension is filtered hot. The residue is washed with hot 70% EtOH and finally with ether. It is dried in a current of air, ground and dried for 18hours at 80o under vacuum. [Morell & Link J Biol Chem 100 385 1933.] It can be further purified by dispersing it in water and adding just enough dilute NaOH to dissolve the pectic acid, then passing the solution through columns of cation-and anion-exchange resins [Williams & Johnson Ind Eng Chem (Anal Ed) 16 23 1944], and precipitating with two volumes of 95% EtOH containing 0.01% HCl. The precipitate is worked with 95% EtOH, then Et2O, dried and ground. [Rees & Walsh Angew Chem Int Edn 16 214 1977, Rees Adv Carbohydr Chem 24 267 1969.]
Check Digit Verification of cas no
The CAS Registry Mumber 9046-40-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 9046-40:
(6*9)+(5*0)+(4*4)+(3*6)+(2*4)+(1*0)=96
96 % 10 = 6
So 9046-40-6 is a valid CAS Registry Number.
