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ÇöÀçÀ§Ä¡: Home > Product > Consumable > ±âŸ Lab ware |
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[ PARAFILM ] PARAFILM |
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Permeability Characteristics:
¡à 8226 Oxygen (ASTM 1927-98): 150 cc/m©÷ d at 23¡ÆC and 50% RH ¡à 8226 Carbon Dioxide (Modulated IR Method): 1200 cc/m©÷ d at 23¡ÆC and 0% RH ¡à 8226 Water Vapor: Flat: 1 g/m©÷ d at 38¡ÆC and 90% RH Creased: same as flat ¡à 8226 Note: Because of low water permeability and the insensitivity of this material to moisture vapor, it is unlikely that differences in relative humidity (RH) will make a difference in the oxygen permeability Effects of Common Reagents:
¡à 8226 Hydrochloric acid conc. (12N) dil. (5N) - no apparent effect in 24 hours ¡à 8226 Sulphuric acid conc. (36N) dil.(5N) - no apparent effect in 24 hours ¡à 8226 Nitric acid conc. (16N) dil. (5N) - no apparent effect in 24 hours ¡à 8226 Sodium hydroxide conc. (22%) - no apparent effect in 24 hours ¡à 8226 Ammonium hydroxide conc. (28% NH3) - no apparent effect in 24 hours ¡à 8226 Potassium permanganate: ¡à 8211 5%: no apparent effect except permanent dark brown coloration in 18 hours ¡à 8211 0.1%: same as 5% but slightly less color Iodine solution 0.1N: no effect except brown staining in 18 hours ¡à 8226 Salt (NACL) solution 20%: no apparent effect in 24 hours ¡à 8226 Ethyl Alcohol 95%: no apparent effect except some face whitening in 24 hours ¡à 8226 Isopropyl alcohol 99%: no apparent effect in 24 hours ¡à 8226 Not recommended for use with chorinated, non-polar aliphatic and aromatic solvents
Film becomes soft and sticky at about 130¡ÆF to 150¡ÆF (68¡ÆC
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