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52357-70-7

Iron oxide brown, with the chemical formula Fe2O3, is a naturally occurring mineral derived from iron ore. It is a pigment known for its high opacity, tinting strength, and earthy brown coloration, making it a popular choice in various applications. Iron oxide brown is insoluble in water and relatively stable in most chemical environments, suitable for outdoor use. It is also considered non-toxic, which broadens its applications in cosmetics and food coloring.

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  • 52357-70-7 Structure

  • Basic information

    1. Product Name: Iron oxide brown
    2. Synonyms: C.I. Pigment Brown 6;Pigment brown 6 (C.I. 77491;Hodgsons Bayferrox Brown 610;C. I. Pigment Brown 6 (77492);Ariabel Umber 300403;Auric Brown
    3. CAS NO:52357-70-7
    4. Molecular Formula: （Fe2O3+FeO)·nH2O
    5. Molecular Weight: 0
    6. EINECS: 257-870-1
    7. Product Categories: N/A
    8. Mol File: 52357-70-7.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: black powder
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Iron oxide brown(CAS DataBase Reference)
    10. NIST Chemistry Reference: Iron oxide brown(52357-70-7)
    11. EPA Substance Registry System: Iron oxide brown(52357-70-7)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 52357-70-7(Hazardous Substances Data)

52357-70-7 Usage

Uses

Used in Paints and Coatings Industry:
Iron oxide brown is used as a pigment for adding earthy brown tones to paints and coatings. Its high opacity and tinting strength make it a popular choice for coloring these products.
Used in Ceramics Industry:
In the ceramics industry, iron oxide brown is used as a coloring agent for various ceramic products. Its natural brown coloration and stability in high-temperature firing processes make it an ideal choice for this application.
Used in Cosmetics Industry:
Iron oxide brown is used as a colorant in the production of cosmetics. Its non-toxic nature and ability to provide a natural brown hue make it a safe and effective option for coloring cosmetic products.
Used in Food Coloring Industry:
Iron oxide brown is used as a food coloring agent to add a natural brown color to various food products. Its non-toxicity and stability in different food processing conditions make it a suitable choice for this application.

Check Digit Verification of cas no

The CAS Registry Mumber 52357-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,3,5 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 52357-70:
(7*5)+(6*2)+(5*3)+(4*5)+(3*7)+(2*7)+(1*0)=117
117 % 10 = 7
So 52357-70-7 is a valid CAS Registry Number.

52357-70-7Upstream product

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