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  • 09:10, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Cellulose-nitrate-metal-corrosion-broken-tooth.jpg (Metals. Corrosion caused by air contamination Comments: Acids from the breakdown of the cellulose nitrate of the comb caused the metal to corrode; tooth of comb broken during use or handling. Image credit: Photograph by Jen Cruse. Permission received 9...)
  • 09:09, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Cellulose-nitrate-metal-corrosion-deposit.jpg (Metals. Corrosion caused by air contamination Comments: Acids from the breakdown of the cellulose nitrate of the comb caused the metal to corrode; deposit source unknown. Image credit: Photograph by Jen Cruse. Permission received 9/18/2020 from Katheri...)
  • 09:06, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Wood-light-damage-fading-crack-humidity-Springer.jpeg (Wood. Discoloration caused by light. Comments: Light radiation has caused fading, visible on the front face of the box. Large crack along wood grain caused by incorrect RH. Image credit: Photograph by Samantha Springer. Permission given 9/15/2020 from...)
  • 09:05, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Display-case-pollutants-interior-crystals-Hatchfield.jpeg (Plastics (Synthetics). Efflorescence caused by pollutants from case materials. Comments: Pollutants from gasket on case react to form salts (above) which appears as fluffy white crystals on the case interior. Image credit: Photograph by Pam Hatchfield...)
  • 09:03, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Earthenware-ceramic-efflorescence-case-pollutants-salt-Hatchfield-3.jpeg (Ceramics. Efflorescence caused by pollutants from case materials. Comments: Tetramethyl Piperidinol (TMP) from gasket reacts with acids in/on porous materials to form salts like TMP chloride (above) which appears as fluffy white crystals on the surface...)
  • 09:03, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Earthenware-ceramic-efflorescence-case-pollutants-salt-Hatchfield.jpeg (Ceramics. Efflorescence caused by pollutants from case materials. Comments: Tetramethyl Piperidinol (TMP) from gasket reacts with acids in/on porous materials to form salts like TMP chloride (above) which appears as fluffy white crystals on the surface...)
  • 09:02, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Earthenware-ceramic-efflorescence-case-pollutants-salt-Hatchfield-2.jpeg (Ceramics. Efflorescence caused by pollutants from case materials. Comments: Tetramethyl Piperidinol (TMP) from gasket reacts with acids in/on porous materials to form salts like TMP chloride (above) which appears as fluffy white crystals on the surface...)
  • 09:00, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Silver-tarnish-sulfur-pollutants-Thickett.png (Metals. Corrosion caused by air pollution. Comments: Sulfur in the air caused dark tarnish on surface of silver ladle. Image credit: Photograph by David Thickett. Permission received 8/31/2020 from David Thickett via email to SSpringer.)
  • 08:58, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Bronze-corrosion-Thickett.png (Metals. Corrosion caused by contamination in air. Comments: Similar to rust on iron, this type of corrosion is likely caused from the presence of chlorides and of the alloy and water (or humidity) from the air. Image credit: Photograph by David Thicke...)
  • 08:57, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Lead-acetate-corrosion-Thickett.png (Metals. Corrosion caused by air contamination. Comments: Acetic acid in the presence of lead can lead to the formation of lead acetate on the surface of the metals. Acetic acid may be offgassed by common gasketing materials or enclosures. Image credi...)
  • 08:51, 11 October 2020 Eguerard (Talk | contribs) deleted page File:Acetate on lead.png (re upload with new file name)
  • 08:48, 11 October 2020 Eguerard (Talk | contribs) uploaded File:Acetate on lead.png (Metals. Corrosion caused by air contamination. Comments: Acetic acid in the presence of lead can lead to the formation of lead acetate on the surface of the metals. Acetic acid may be offgassed by common gasketing materials or enclosures. Image credi...)
  • 08:45, 11 October 2020 Eguerard (Talk | contribs) uploaded File:CN handbag corrosion.jpg (Metals. Corrosion caused by air pollutants. Comments: Metal hinge attaching cellulose nitrate handle to handbag is heavily corroded causing blue powdery crystals to form on surface of metal, and utimately detaching handle from bag Image credit: Photogr...)
  • 08:42, 11 October 2020 Eguerard (Talk | contribs) uploaded File:CN glasses sugar effect corrosion 02.jpg (Plastics (Synthetics). Sugaring or Powdering caused by air pollutants. Comments: Corrosion causing a visible layer of salt crystals to form on cellulose nitrate glasses Image credit: Photograph by van Aubel van Rooijen, Plastic Identification Tool. Per...)
  • 08:40, 11 October 2020 Eguerard (Talk | contribs) uploaded File:CN glasses sugar effect corrosion 01.jpg (Plastics (Synthetics). Sugaring or Powdering caused by air pollutants. Comments: Corrosion causing a visible layer of salt crystals to form on cellulose nitrate glasses Image credit: Photograph by van Aubel van Rooijen, Plastic Identification Tool. Per...)
  • 09:31, 7 August 2020 Eguerard (Talk | contribs) uploaded File:Wood-salts-damage-efflorescence-PUR-met-AIC-News.jpg (Wood. Efflorescence formed after storage with open-cell polyester polyurethane. Comments: Dendritic, white amine deposits formed on the wood object, after it was wrapped in polyethylene sheeting and placed on polyethylene foam for approximately 5 yea...)
  • 09:30, 7 August 2020 Eguerard (Talk | contribs) uploaded File:Wood-salts-damage-efflorescence-white-met-AIC-News.jpg (Wood. Efflorescence caused by direct contact with open-cell polyester polyurethane. Comments: Acicular, dendritic white amine deposits formed where the wood object was cushioned by polyurethane foam. The efflorescence is made of thin, sticky filaments...)