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Parafilm 50mm x 75m, Natural

SKU:
HS234526A
  • $43.00

    • Description

    Parafilm 50 mm x 75 m

    Parafilm 50 mm x 75 m

    Parafilm® M is a semi-transparent, flexible, thermoplastic film with two-way stretch

    • Creates tight moisture-barrier that holds a strong seal and doesn’t release from glassware, despite off-gassing
    • Non-toxic and free from plasticizers, primarily composed of polyolefins and paraffin waxes offering good resistance against acids, alkalis and some organic solvents—use not recommended with acetone, diethyl ether or tetrachloride
    • Reduces the risk of tampered data with a covering that is odorless, colorless and semi-transparent
    • Prevents moisture and volume loss due to material composition and tight seal
    • Flexible and self-sealing material allows it to cling around irregular shapes and surfaces
    • Stretches more than 200% of original length
    • Resistant up to 48 hours against many polar substances such as saline solutions, inorganic acids and alkaline solutions
    • Two color options available in 2” rolls (natural and purple) for color coding purposes
    PERMEABILITY
    • Oxygen: (ASTM 1927-98) 150 cc/m² d at 23°C and 50% RH
    • Carbon Dioxide: (Modulated IR Method) 1200 cc/m² d at 23°C and 0% RH
    • Water Vapor: (ASTM F1249-01)
      • Flat: 1 g/m² d at 38°C and 90% RH
      • Creased: 1 g/m² d at 38°C and 90% RH
    EFFECTS OF COMMON REAGENTS

    Potassium Permanganate

    • 5%: No apparent effect except permanent dark brown coloration in 18 hours
    • 0.1%: Same as 5% except slightly less color
    Iodine solution (0.1N)
    • No effect except staining brown in 18 hours
    Ethyl Alcohol (95%)
    • No apparent effect except some face whitening in 24 hours
    No apparent effect in 24 hours:
    • Hydrochloric Acid conc. (12N)dil. (5n)
    • Sulphuric Acid conc. (36n) dil. (5n)
    • Nitric Acid conc. (16n) dil. (5n)
    • Sodium Hydroxide conc. (22%)
    • Ammonium Hydroxide conc. (28% NH3)
    • Salt (NACL) solution (20%)
    • Isopropyl Alcohol (99%)
    • Not recommended for use with chlorinated, non-polar aliphatic and aromatic solvents
    • Film becomes soft and sticky at about 130°F to 150°F (68°C)
    Parafilm® is a registered trademark of Bemis Company, Inc.