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

Characteristics

PVPP is a highly cross-linked polymer with a large number of pyrrolidone ring structures in the molecular chain.

White or light yellow powder, tasteless and odorless.

Insoluble in water and most organic solvents, but has strong adsorption capacity.
Good thermal and chemical stability, can maintain stable performance in acidic or alkaline environments.

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

●High-efficiency tablet disintegrant: Can make all excipients swell at the fastest speed: effective in wet or dry granulation and direct tableting process; can be added before or after granulation, and its swelling effect and disintegration time are not affected by wetting and drying.

●Suspension stabilizer: Reduces the particle sedimentation rate, increases the volume of the sedimentation layer, and improves the ability of sediment to be redispersed, suitable for instant dispersible and ready-to-drink dispersible dosage forms.

●Filter aid: Can be stably combined with tannins and polyphenols, and is used for the clarification and purification of plant drug extracts.

FAQ

1.What are the storage requirements for PVPP?
It should be stored in a dry, cool, well-ventilated place, away from direct sunlight and high temperature. The product should be sealed after opening.

2. Can PVPP be recycled?
After proper cleaning and treatment, PVPP can be recycled, especially in industrial production, which can effectively reduce material waste.

3. Will PVPP have an impact on the environment?
Used PVPP can be recycled or treated in accordance with environmental protection standards to avoid pollution.

4. What are the advantages of PVPP compared with other clarifiers?
High efficiency: PVPP has a strong adsorption capacity and can remove a large amount of impurities in a short time.
No residue: After use, it can be completely removed by simple filtration or centrifugation, and will not remain in the final product.

5. How to choose a suitable PVPP product?
The appropriate specifications should be selected according to the specific needs of the application. For example, beer production requires the selection of PVPP with high adsorption capacity.

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Polyvinylpolypyrrolidone 25249-54-1