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CAS No.:[25249-54-1] product-1-1
Grade: Food grade
Chemical Name: Insoluble Polyvinylpyrrolidone; PVPP
USP/EP Name: Crospovidone
Synonyms: Crospovidonum; crosslinked PVP
INCCTFA Name: Insoluble PVP
Molecular Formula: (C₆H₉NO)n Mw=(111.1)n
Trade Name: Sunvidone CL(STD)

Characteristics

SUNVIDONE CL series are supplied as fine white or almost white powders.
They have a slight characteristic odour and are practically tasteless.
They are insoluble in all the usual solvents.

Specification

SUNVIDONE		CL	CL-R	CL-S
PH (10% suspension)		5.0-8.0	5.0-8.0	5.0-8.0
Water, % max.		6.0	6.0	6.0
Sulphate ash, % max.		0.4	0.4	0.4
Water-soluble substances, % max.		1.0	1.0	1.0
Free-NVP, mg/kg max.		10	10	10
Free-N,N'-Divinylinidazolidone, mg/kg max.		2	2	2
Lead, mg/kg max.		5	5	5
Nitrogen, %		11.0-12.8	11.0-12.8	11.0-12.8
Particle size, microns		0-300	45%<75	100%<75
Particle size, microns		0-300	15%<37
Equivalent to	BASF's		Divergan R	Divergan F
	ISP's	Disintex	Polyclar R	Polyclar 10/V

Application

Food and Beverage Clarification: PVPP is widely used as a clarifier in the processing of beverages such as beer, wine and juice. It reduces the turbidity of liquids by adsorbing polyphenolic compounds (such as tannins), thereby improving the stability and sensory quality of beverages.

Pharmaceutical Field: As a disintegrant, it can absorb water and expand rapidly, promote the disintegration and dissolution of tablets, thereby accelerating the release and absorption of drugs. It is often used in the production of solid preparations such as tablets.

Industrial Application: It can be used as an adsorbent to separate and remove impurities from solutions.

FAQ

1.How to determine the dosage of PVPP?
In food clarification, the dosage is usually adjusted based on the polyphenol or tannin content in the solution.
In the pharmaceutical field, the dosage as a disintegrant must comply with the pharmacopoeia regulations and formulation requirements.

2. In which countries can PVPP be used?
PVPP has obtained food, pharmaceutical and other industry certifications in many countries and regions including the European Union, the United States, and China.

3. What are the storage conditions for PVPP?
It should be stored in a dry and ventilated environment, avoiding high temperature and humidity, otherwise it may cause moisture absorption and performance degradation.

4. How to deal with PVPP waste?
Due to its chemical inertness, PVPP can be safely landfilled or incinerated. If feasible, industrial waste PVPP can also be recycled to reduce the environmental burden.

5. Which traditional clarifiers can PVPP replace?
PVPP has excellent adsorption capacity and can replace traditional clarifiers in many applications.

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