| | 9046-40-6 Basic information More.. |
| Product Name: | PECTIC ACID | | Synonyms: | PECTIC ACID FROM APPLES;pectin, esterified from citrus fruit;PECTIC ACID tech;PECTIC ACID;Pectic acid from apple, Poly-D-galacturonic acid;PECTIN, ESTERIFIED, DEGREE OF*ESTERI;Methyl protopectin;Pectic Acid pure | | CAS: | 9046-40-6 | | MF: | C18H26O19 | | MW: | 546.38764 | | EINECS: | | | Mol File: | 9046-40-6.mol |  |
Use
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.]
- PECTIC ACID
-
- US $1.00 / KG
- 2020-01-13
- CAS:9046-40-6
- Min. Order: 1g
- Purity: 99.0%
- Supply Ability: 100kg
|
|
9046-40-6
Recommend Suppliers |
|