iron oxide

Iron Oxide RedSpecification Iron content(indicated by Fe2O3 at 105ºC baking ≥ 95% Volatile matter at 105ºC≤1.0%Matter soluble in water≤0.3%Water extraction liquid acidity & allkality ≤20 mlPH value of water suspension 5-7Residue on sieve（63μm）≤0.3%Total calcium content(indicated by CaO) ≤ 0.3%Oil absorption (g/100g)15-25Existance of organic tinting matter NegativeColour comparison(contrast with standard Speciment) almost-microComparison of relative tinting strenghth (contrast with standard specimen) ≥95 Water soluble chloride and sulfate (indicated by CL- and SO4-) ≤0.2% Lead chromate Negative Notes: 1) The standard specimen for relative tinting strength of the colour should be decided through the negotiation between the plant and customer two sides.2) In case of the sample colour shade, the test sample is fresher than which of the standard, the grade of colour difference is “slight”, now the product should be of the first class. Usage: pigment used in paint,rubber,plastic,buiding,cement,ceramic,etc. Packing: In plastic lined plastic woven bag of 25kg. net each. Iron Oxide Yellow 313Specification Iron content(indicated by Fe2O3 at 105ºC baking ≥ 86% Volatile matter at 105ºC≤1.0%Matter soluble in water≤0.5%Water extraction liquid acidity & allkality ≤20 mlPH value of water suspension 3.5-7Residue on sieve（45μm）≤0.4%Total calcium content(indicated by CaO) ≤ 0.3%Oil absorption (g/100g)15-35Existance of organic tinting matter NegativeColour comparison(contrast with standard Speciment) almost-microComparison of relative tinting strenghth (contrast with standard specimen) 100 Lead chromate Negative Notes: 1) The standard specimen for relative tinting strength of the colour should be decided through the negotiation between the plant and customer two sides.2) In case of the sample colour shade, the test sample is fresher than which of the standard, the grade of colour difference is “slight”, now the product should be of the first class. Usage: pigment used in paint,rubber,plastic,buiding,cement,ceramic,etc. Packing: In plastic lined plastic woven bag of 25kg. net each. 12MT/1X20’FCL