Medicinal grade carboxymethyl cellulose sodium 9004-32-4

Carboxycellulose sodium Suojia Xianweisuna Carboxymethylcellulose Sodium [9004-32-4] This product is a sodium carboxycellulose salt
generated by cellulose under alkaline conditions and effect.

According to the calculation of dried products, Na content should be 6.
5% to 9.
5%.


【Properties】This product is white to yellowish fibrous or granular powder
.

This product swells in water into a colloidal solution and is insoluble in ethanol, or .


【Identification】Take 1g of this product, add 50ml of warm water, stir to spread evenly, make a colloidal solution, let cool, and set aside
.

(1) Take 10ml of the above solution, add 1ml of copper sulfate test solution, that is, generate a blue flocculent precipitate
.

(2) Take 5ml of the above solution and add equal volume of barium chloride test solution to generate a white precipitation
.

(3) Take the above solution and show the flame reaction of sodium salt (general rule 0301
).

【Inspection】 Viscosity Take the appropriate amount of this product, prepare the solution according to the conditions specified under the label, preclude the prescribed measurement conditions, and determine according to law (General 0633 Third Law), which should be 75% to 140% of the declared viscosity
.

pH Take 0.
5g of this product, add 50ml of warm water, stir vigorously, until a colloidal solution is formed, cool, and determined according to law (General Rule 0631), the pH value should be 6.
5 ~ 8.
0
.

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