SELVOL 205 Polyvinyl Alcohol, PVOH688

SELVOL 205 is a low-viscosity, easy-to-dissolve polyvinyl alcohol, commonly used as a stiffener or sizing agent for textiles and paper. This off-white granular solid exhibits excellent thermal and light stability, making it suitable for various industrial applications. The viscosity of a 4% solution is between 5.2 and 6.2 cps.

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Product Specifications

Appearance	Off-white granular solid
Viscosity (4% solution)	5.2 - 6.2 cps
Refractive Index (nD at 20ºC)	1.52 - 1.55
Specific Gravity	1.27 - 1.31
Specific Heat (J/g K)	1.65 - 1.67
Thermal Conductivity (W/m C)	~2
Coefficient of Thermal Expansion (0-45ºC)	7 - 10 x 10-5 / ºC
Glass Transition Temperature	58ºC
Melting Point	180ºC
Electrical Resistivity (Ω cm x 107)	3.1 - 3.8

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Applications and Benefits:

• Textile stiffener
• Paper sizing agent
• Industrial applications requiring low-viscosity PVA
• Excellent thermal and light stability

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Caution:

Handle according to standard safety procedures. Refer to the Safety Data Sheet for detailed information.

Cotton Cellulose Paper

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The Cotton Cellulose Paper is a highly absorbent paper made of 100% pure cotton. It can be used as both a chromatography paper and filter paper. As a high-quality filter paper, it can filter solids as small as 2.5 um. It can also be used as chromatography and electrophoresis paper with water and a variety of solvents. The paper comes in a 50cm x 50cm sheet folded for simplified shipping. This paper is perfect for those looking for a reliable and versatile option for their chromatography and filtration needs.

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Product Specifications:

Material	100% pure cotton cellulose
Dimensions	50cm x 50cm sheet, can be cut into 75 or more chromatography strips (3/4" x 6" or 2 cm x 15 cm)

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Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

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CAUTION: Handle the Cotton Cellulose Paper with care as it can filter solids as small as 2.5 um. Use appropriate protective gear when handling.

Perfect for:

• Scientists and researchers in the fields of chemistry and biology
• Lab technicians and professionals working in the pharmaceutical industry
• Students studying chromatography and electrophoresis
• Individuals conducting experiments and research in their home labs

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Polyvinyl Alcohol 30-99, Elvanol 71-30

PVOH 30-99 (Elvanol® 71-30) is a medium-viscosity, fully hydrolyzed polyvinyl alcohol designed for applications requiring high tensile strength, tear resistance, and excellent adhesion to hydrophilic surfaces. This white granular polymer is soluble in hot water and forms transparent films upon evaporation. Insoluble in cold water and common organic solvents, PVOH 30-99 is widely used in the paper, textile, ceramic, and adhesive industries.

Key applications include sizing for paper and textiles, ceramic fiber binder, and wallpaper glue. PVOH 30-99 offers excellent film-forming characteristics with superior resistance to tearing and high strength, making it a versatile polymer for coatings, adhesives, and emulsions. It is often applied using brushes, rollers, or spray equipment.

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Product Specifications

Viscosity (4% Solution)	67 ± 5 cps
Hydrolysis Level	Fully hydrolyzed (99%)
Average Polymerization	7150 ± 100
Alcoholysis (mol/mol)	28-32%
Solubility	Soluble in hot water

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Applications and Benefits:

• Binder for paper and textile sizing
• Ceramic fiber binder
• Transparent, high-strength film formation
• Wallpaper glue
• Adhesive and emulsion stabilizer
• Hydrophilic surface adhesion

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Caution:

Handle with care according to safety guidelines. Refer to the Safety Data Sheet for detailed handling and storage information.
 

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PVOH 30-99 is a high molecular weight, medium viscosity, fully (99%)hydrolyzed grade of polyvinyl alcohol that can dissolve in hot water. It offers high tensile strength and tear resistance. White and granular, it is soluble in hot water but insoluble in cold water and common organic solvents. For most applications, PVOH 30-99 is prepared in water solutions. On evaporation of water, transparent films are formed which have high tensile strength and tear resistance. The binder characteristics of PVOH 30-99 offer excellent adhesion to porous, hydrophilic surfaces, offers a combination of excellent film forming and binder characteristics, along with insolubility in cold water and organic solvents. Synonyms: Elvanol; PVA; Polyviol; Vinol; Alvyl; Polyvinyl Alcohol 500; PVOH; Ethenol, homopolymer; vinyl alcohol polymer; liquifilm; alcotex; aracet apv; cipoviol w 72; Covol; covol 971; elvanol 50-42; elvanol 52-22; elvanol 70-05; elvanol 71-30; elvanol 90-50; gelvatol 1-90; gelvatol 3-91; gelvatol 20-30; gelvatol 2090; GH 20; GL 02; GL 03; GLO 5; GM 14; gohsenol; gohsenol ah 22; gohsenol gh; gohsenol gh 17; gohsenol gh 20; gohsenol gh 23; gohsenol gl 02; gohsenol gl 03; gohsenol gl 05; gohsenol gl 08; gohsenol gm 14; gohsenol gm 94; gohsenol kh 17; gohsenol nh 05; gohsenol nh 17; gohsenol nh 18; gohsenol nh 20; gohsenol nh 26; gohsenol nk 114; gohsenol nl 05; gohsenol nm 14; gohsenol nm 114; ivalon; kurare poval 1700; kurare pva 205; kurate poval 120; Lemol; lemol 5-88; lemol 5-98; lemol 12-88; lemol 16-98; lemol 24-98; lemol 30-98; lemol 51-98; lemol 60-98; lemol 75-98; lemol gf-60; M 13/20; mowiol; mowiol n 30-88; mowiol n 50-98; mowiol n 70-98; NH 18; NM 11; NM 14; polydesis; polysizer 173; polyvinol; polyviol m 13/140; polyviol mo 5/140; polyviol w 25/140; polyviol w 40/140; poval 117; poval 120; poval 203; poval 205; poval 217; poval 1700 Additional Specs: (Verify) Average polymerization: 7150±100 Alcoholysis % (mol/mol) 28-32