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  • E.I. du Pont de Nemours & Company Minute Books, 1899-1940
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    Collection guide
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    A guide to primary material at the Hagley Museum and Library. For access to the contents of this collection contact Hagley at research@hagley.org or 302-654-2800.
  • Hagley Collection Guides and Finding Aids
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  • Filtering dissolved cotton
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    Manufacturing Processes of Finishes- Automotive, 'Duco', Enamels, Lacquers, Paints
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    Following the base mixing, the dissolved cotton is filtered through a base filter press to remove any remaining impurities, an important part of the process of manufacture of finishes by DuPont.
  • DuPont Product Information Photographs
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  • Correspondence, Richard Bowden & Co. to E. I. du Pont de Nemours and Company, 1808-03-30
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    Richard Bowden & Co.; embargo; Norfolk; Account information; Richard Drummund;
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  • DuPont Company Collection
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  • Correspondence, R. Morison & Co. to E. I. du Pont de Nemours and Company, 1859-11-07
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    Foreign shipments; Havana, Cuba;
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    MORISON, R. & CO. (2)
  • DuPont Company Collection
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  • Correspondence, Rodmond Gibbons to E. I. du Pont de Nemours and Company, 1857-10-19
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    Rodmond Gibbons; Gibbons and Lammot; San Francisco, CA; Robert Lammot; Brockett and Page;
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  • DuPont Company Collection
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  • DuPont's sodium hydride process for descaling metals
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    DuPont's Sodium Hydride Process for Descaling Metals
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    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • DuPont's sodium hydride process for descaling metals
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • DuPont's sodium hydride process for descaling metals
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • Lowering into the water quench
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    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • About 3,000 pounds of stainless steel wire is being lifted out of the sodium hydride bath
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    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • Stainless steel wire, shown above, is just out of the water quench which follows the DuPont sodium hydride bath
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    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • Stainless steel wire, shown coming out of the DuPont sodium hydride bath and ready for quenching
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    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • At scheduled intervals the operator replenishes the sodium supply for the hydride bath by placing sodium bricks into the sodium hydride generator boxes as is shown above
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • A close-up of stainless steel wire after it has been descaled in sodium hydride and brightened by a quick dip in acid.
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    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • Replenishing the sodium supply into the molten caustic bath is a simple operation as is shown above. The operator places sodium bricks into the generator boxes at scheduled intervals
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • DuPont's sodium hydride process for descaling metals
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
• • 
    
    
  • DuPont's sodium hydride process for descaling metals
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • View of descaling bath
  • 
    DuPont's Sodium Hydride Process for Descaling Metals
  • 
    Developed especially for the purpose and backed by continuous mill experience since 1941, the DuPont Sodium Hydride Descaling Process is essentially a chemically activated fused caustic soda cleaning bath. Advantages over conventional pickling and...
  • DuPont Product Information Photographs
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  • Cellophane machine
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    DuPont Exhibition at the New York Museum of Science & Industry
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    Miniature machine demonstrating how Cellophane cellulose film is made, a feature of the former DuPont Exhibition as it appeared at the New York Museum of Science and Industry, Rockefeller Center New York City. The spruce wood, after being ground...
  • DuPont Product Information Photographs
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  • Cellulose xanthate
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    Viscose Process of Manufacturing Rayon
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    Cellulose xanthate after being dissolved to form liquid viscose is forced through filter presses that contain manifold layers of cotton sheeting, batting and canton flannel to remove any solid impurities. A press is being loaded with filter packs...
  • DuPont Product Information Photographs

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