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  • Iron oxide black pigment
  • Product color：BLACK
  • specification：25kg/bag
  • Product Brand：Mei Dan
  • Consultation telephone： +86-18520230133
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Product description

Iron oxide black pigment
Iron oxide black (E 172, synonymous CI Pigment Black 11, triiron‐tetraoxide, black iron oxide, ferrous ferric oxide, magnetite, Colour Index 77499) is identical to the active substance iron(II,III) oxide (International Union of Pure and Applied Chemistry (IUPAC) name, Chemical Abstracts Service (CAS) number 1317‐61‐9, molecular formula FeO·Fe2O3, molecular weight 231.55).

Iron oxide black is produced via chemical synthesis using iron oxide yellow (FeO(OH)) or iron oxide red (Fe2O3) and/or iron(II) sulfate as starting chemicals which are converted/reacted in the presence of pure oxygen and caustic soda (precipitation process).

Iron oxide black is a black powder with a relative and apparent density of approximately 4.6 kg/L and 0.7 kg/L, respectively. It is insoluble in water and organic solvents, and soluble in mineral acids.

 

Product Features

  • Good dispersibility
  • Good weather fastness
  • Good heat fastness
  • Good light fastness
  • Cheap price and low loss

 

Technical Specification

  • Appearance: black powder
  • Color (compared with standard sample): approximate
  • Tinting strength: ≥95%
  • 105℃ volatile substance V1: ≤1.0%
  • Water soluble matter I: ≤0.5%
  • PH value of water suspension: 7.6
  • Oil absorption value: 21.5g/100g
  • FE2O3 content B: ≥70%
  • Lead chromate inexistence: yes
  • Ca0 content: ≤0.3%
  • Organic coloring material exists: yes

Application of iron oxide black

Black iron oxide is also used in paints, enamels, Porcelain Enamels, concrete colorants, plastics, rubber, and paper where black is required. It has excellent hiding power, absorbs ultraviolet light, is compatible with a broad range of vehicles, disperses well in aqueous and solvent systems, does not contain heavy metals. Other applications are in Primers, Wood Primers, Dry Distemper, Cement Paints, Adhesives, Cement Flooring, Vinyl Flooring, Designer Tiles, Paving blocks, Cement Colours , Mosaic Tiles, Ceramics, Plastics (Plastics Asphalt), PVC, Rubber products ,Paper, Crayons, Leather, Glazes, Dadoes, Plaster works. Elastomers , Textile, Inks, Fiber, Glass Polishing, Metal Polishing, Rouge Polishing, Optical Lens etc





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