Dissolving power
Polysolvan O has excellent dis-solving power for polyvinyl ace-tates, polyvinyl butyrals, vinyl acetate / vinyl chloride / dicarbo-xylic acid copolymers, nitric acid esters of cellulose (nitrocellulose, celluloid), cellulose ethers, chlor-inated rubber, many natural and synthetic resins and most oils and plasticizers.
The following substances are sparingly soluble:
manila copal, shellac, acetic acid esters of cellulose (cellulose acetate), polystyrene (painted articles), indene resin and alkyd resins modified with oleic acid or fatty acid.
Polysolvan O does not dissolve:
dammar, rubber, bitumen, alde-hyde resins, polyisobutylene, painted articles made of polyvinyl chloride (not post-chlorinated) and polyvinyl carbazole, poly-methacrylates and polyacrylates.
Applications
Because of its very low volatility Polysolvan O is used chiefly as a paint additive in the form of a highly effective flow agent. When added in amounts of 3 – 5 % it gives nitrocellulose lacquers excellent gloss and smooth flow properties. To produce a higher gloss, the amount of Polysolvan O in leather lacquers based on nitrocellulose can be increased.
Because of its faint odour Polysolvan O is also used in brush-applied paints. Although Polysolvan O hardly dissolves cellulose acetate at all, it can be added to cellulose acetate paints to prevent blushing at high relative humidity. Similarly it is used as a paint additive in alkyd resin and oil paints. The occasionally severe wrinkling of various oil paints can be largely prevented by an add-ition of 1 – 2 % Polysolvan O.
The addition of Polysolvan O as a high-boiling solvent to stoving finishes effects uniform flow of the paint film.
Polysolvan O is also employed in the manufacture of printing inks, where extremely faint odour, high boiling point and low volatility are of particular importance.
The high dilutability of Polysolvan O has a beneficial effect in all applications. A highly successful use of the product is in lowering the minimum film-forming temperature (DIN 53 787) of polyvinyl acetate dispersions.
When Polysolvan O is added, it should be borne in mind that initial thickening may occur as a result of partial dissolving of the polymer particles; slow addition is therefore recommended.
Furthermore it is advisable first to emulsify Polysolvan O with an equal quantity of water.
Sales specifications | ||
Appearance clear liquid (visual examination) | clear liquid | |
| Total esters (M = 132 g/mol) *) (DIN 51405, GC) | % (w/w) | min. 97.0 |
| Water (DIN 51 777, part 1) | mg/kg | max. 500 |
| Acid value (DIN EN ISO 3682 / ASTM D 1613, modified) | mg KOH/ | max. 0.22 |
| Density at 20 °C (DIN 51 757, method D) | g/cm3 | 1.015 – 1.023 |
| Platinum-Cobalt-Color (Hazen/APHA color, DIN ISO 6271) | max. 10 | |
The product is constantly monitored to ensure that it adheres to the specified values
*) Sum of Glycolic acid-n-butylester, Butoxyacetic acid-n-butylester, Diglycolic acid-di-n-butylester calculated as Glycolic acid-n-butylester
| Technical data | ||
| Refractive index nD at 20 °C (DIN 51 423, part 2) | 1.423 – 1.426 | |
| Boiling range (DIN 53171) | °C | 186 - 200 |
| Vapour pressure at 20 °C | mbar | 1.3 |
| Melting temperature | °C | – 26 |
| Evaporation number (DIN 53 170, diethyl ether = 1) | app. 460 | |
| Evaporation (DIN 53 249, dipentene) | % (w/w) | 18 |
| Viscosity at 20 °C (DIN 51 562) | mPa · s | 4.4 |
| Specific heat at 20 °C | kJ/kg · K | app. 2.1 |
| Dielectric constant at 20 °C (DIN 53 484) | app. 13 | |
| Heat of vaporization at 1013 hPa | J/g | app. 373 |
| Electrical conductivity at 20 °C | S | app. 2.5 · 10–7 |
| Solubility in water at 20 °C | g/l | 20 |
| Water absorption at 20 °C | % (w/w) | 25 |
The technical data are used solely to describe the product and are not subject to constant monitoring.
Safety and handling | ||
| Acute oral toxicity LD50 (rat) | mg/kg | 4595 |
| Flash point (DIN 51 758) | °C | app. 75 |
| Ignition temperature (DIN 51 794) | °C | 405 |
| Lower explosive limit in air at 1013 hPa | % (w/w) | 1.3 |
| Temperature class (DIN VDE 0165) | T2 | |
Classification according to hazardous substances directive 67/548/ECC | hazard symbol: Xi hazard warning: irritant R phrases: 41 S phrases: 25-26 | |
| German clean air regulations | (5.2.5.) | |
| Water hazard class (VwVwS) | 1 (117) | |
Inhalation of the vapours should be avoided. Provision should be made for good room ventilation. Poly-solvan O containers must be kept closed. On the basis of our own investigations Polysolvan O irritates the mucous membranes (risk of serious eye damage). Clothing splashed with the product must be removed; splashes on the skin or in
the eyes should be washed away with plenty of water. If the product is swallowed, a doctor must be called at once.
The very mild odour of Polysolvan O should in no way mislead users into failing to observe the general safety precautions for handling solvents.
As with all solvents, precautions such as the use of skin creams are advisable. Measures must be taken during transfer and filling of the product to prevent the build-up of an electrostatic charge.
In the event of fire, the following extinguishing agents may be used: foam, dry powders, carbon dioxide and water spray jet; a powerful jet of water is unsuitable.
Foam has to be applied in large quantities because some of it is des-troyed. Containers at risk must be cooled with water.
For safe disposal in accordance with the regulations Polysolvan O has to be taken to an authorized disposal site (e. g. incineration plant).
Small quantities that have been spilt or have leaked out must be taken up with an absorbent material and disposed of in accordance with the regulations.
On the basis of experience to date Polysolvan O causes no problems in waste water purification/sewage treatment plants provided it is used correctly. It is readily biodegrad-able.
Dispatch and storage | |
| Storage category | 3B |
| GGVE/RID | non-regulated |
| GGVS/ADR | non-regulated |
| ADNR | Container-Ship: non-regulated Tanker: Cl. 9 |
| IMDG code | non-regulated |
| UN number | - |
| IATA-DGR | non-regulated |
Polysolvan O is supplied in road tankers, rail tank wagons and standard drums.
Polysolvan O should be stored in a cool, dark, dry place and pre-vented from coming into contact with air. Stainless steel and alu-minium can be used as container materials. Steel tanks are not suitable for storage.
Polysolvan O maybe stable in storage under these conditions.
