Polyvinylpyrrolidone 90 9003-39-8
Chemical Name:1-vinyl-2-pyrrolidone homopolymer
CTFA name: POLYVINYLPYRROLIDONE
Product Description:
Polyvinylpyrrolidone 90
Polyvinylpyrrolidone 90 9003-39-8(PVP K90, CAS 9003-39-8) is a high-viscosity polyvinylpyrrolidone polymer. Molecular weight: 1,000,000–1,500,000 Da. K-value: 81–97 (USP/Ph.Eur). White hygroscopic powder for film coatings and adhesives.
Critical Specifications
|
Parameter |
Specification |
|
CAS No |
9003-39-8 |
|
K-value |
81–97 (1% aq. sol.) |
|
Viscosity (10%) |
300–700 mPa·s |
|
Residual NVP |
≤0.1% (GC) |
|
pH (5% sol.) |
3.0–7.0 |
|
Loss on Drying |
≤5.0% |
|
Chemical Name |
1-vinyl-2-pyrrolidone homopolymer |
|
CTFA name |
POLYVINYLPYRROLIDONE |
|
Molecular formula |
(C6H9NO)n |
Industrial Applications
Pharma coatings
Sustained-release film former
01
Adhesives
High-tack remoistenable glue
02
Lithography
Photoresist binder
03
Ceramics
Binder for green bodies
04
Beverage stabilization
Colloid protector
05
Processing Protocol
Solution Prep
Cold hydration (4h minimum)
01
Coating
10–15% w/w solutions for tablet film
02
Incompatibilities
Avoid high salt concentrations
03
Gel Risk
Solutions >20% w/v form irreversible gels
04
Supply Parameters
▼Packaging: 25kg PE-lined drums (nitrogen flushed)
▼Grades: Pharma (USP), Technical (low heavy metals)
▼Quality: Batch-specific GPC/K-value reports
▼Regulatory: DMF Type II (#F22351)
Performance Validation
◆ Tablet Film Tensile:** ≥40 MPa
◆ Photoresist Resolution:** ≤0.15μm line width
◆ Adhesive Tack:** ≥25 N/cm²
◆ Dissolution Delay:** 2–4 hours (enteric mimic)
Failure Prevention
◢ Undissolved Lumps:** Premix with ethanol before hydration
◢ Viscosity Drop:** Limit storage temp <30°C
◢ Foaming:** Add 0.1% silicone antifoam
◢ Color Shift:** Exclude copper alloy contact
Business proposal:
1.Stabilize the existing
2.Extend downstream
3.Extend Upriver
Development Planning:
The above four steps will be implemented from the first calcium carbide plant of Baiyan Lake Company as the calcium carbide raw material, and to the east to use calcium carbide to produce 100,000 tons/year BDO and 50,000 tons/year GLB chemical plant area, and then enter the current Kema company factory area to the west Proceed to the synthesis of NVP monomers, and then go eastward to enter the fine chemical zone for the production of PVP series products. Among them, the office and the middle area of the substation of Baiyan Lake Company's calcium carbide plant can be planned to be used as public engineering areas.
If the above plan is realized, it will greatly increase the added value of Baiyan Lake's products, realize a real industrial upgrade, optimize the local industrial economic structure, and improve the quality of the regional economy.
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