SYNOX Brown 4660
Product name: SYNOX Brown 4660
Chemical name: EC name: Diiron trioxide (Fe2O3)
EC number: 215-168-2
CAS name: Iron oxide (Fe2O3) CAS number: 1309-37-1
REACH Pre-registration number: WN172640-19
Use of the substance:
Synox Brown 4660 is used for colouration in a variety of coating applications including paints, plastics, rubber and concrete products
COMPOSITION/INFORMATION ON INGREDIENTS:
Product name: Brown 4660
EC name: Diiron trioxide (Fe2O3) EC number: 215-168-2
CAS name: Iron oxide (Fe2O3) CAS number: 1309-37-1
Formula: Fe2O3
Molecular: 159.69
Hazards: No
Specification – Synox
Product name: Brown 4660
Chemical formula: Synthetic iron oxide α- Fe2O3 / Fe3O4
Type: Brown iron oxide pigment Colour index: Pigment red 101 (77491) /black 11(77499)
CAS NO.: 1309-37-1/1317-61-9
EC NO.: 215-168-2/215-277-5
Form: Powder
Hue: Brown
Colour difference in paints : Mass tone ΔEabL max 1.0
Test method：ISO787/1 Tint-tone ΔEabL max 1.0 Test method：ISO787/16
Relative tinting strength (%) min 95 max 105 Test method：ISO787/16
Colour difference in cement : ΔEcmc max 1.5
3 % Concentration in cement Relative tinting strength (%): min 95 max 105
Technical data
Fe2O3 content (%): min 70
Test method：ISO1248/8
Moisture (%): max 1.0
Test method：ISO787/2
Water soluble salts (%): max 0.5
Test method：ISO787/3
Sieve residue on 45μm mesh: (%) max 0.5
Test method：ISO787/7
pH value min 4.0 max 8.0
Test method：ISO787/9
Oil absorption: min 20 max 40
Test method：ISO787/5
Density (g/cm3) approx. 5.0
Test method：ISO787/10
Apparent density (g/cm3): approx. 1.0
Test method：ISO787/11