Pigment Brown 24(Chrome Titanate Brown) is regarded as a non-toxic environmental pigments. It has excellent light-fastness, weather resistant, acid resistance, alkali resistance, easy dispersed, non-bleeding, non-migration, high hiding powder. Chrome Titanate Brown has good chemical stability in most of heat-convertible resin and thermoplastic resin.
It can be use for Heat-resistant coatings, weather-resistant coatings, fluorocarbon coatings, powder coatings, out-door architectural coatings, toy plastics, ink, ceramics, grass and electrical materials.
Density (g/cm3) | 4.7 |
PH value | 7.0 |
Oil Absorption(g/100g) | 15 |
105℃Volatile Matter% | ≤0.5 |
Water soluble Matter% | ≤0.5 |
Residue on 45um Mesh% | ≤0.1 |
Heat resistant | 1000℃ |
Light Resistant | 8 |
Acid resistant | 5 |
Alkali Resistant | 5 |
Pigment Brown 24 is a complex inorganic pigment produced by high-temperature calcination of titanium, chromium(III) and antimony(V) oxides to form a rutile (Ti-oxide) matrix doped with Cr and Sb; CAS number commonly listed is 68186-90-3.
Some commercial masterbatches containing Pigment Brown 24 are marketed and documented for food-contact applications, but approval depends on the supplier's formulation and local regulations — always verify the supplier's TDS/Declaration of Conformity and run migration tests for your specific polymer and final use.
For consistent color and maximum hiding power, pre-disperse Pigment Brown 24 as a concentrated masterbatch (commonly 40–60% in PE or similar carrier) or use high-shear wet milling followed by appropriate drying and screening. Dust-free masterbatches improve handling and reduce dispersion time in compounding. Supplier TDS/packaging notes typically specify recommended carrier and grind levels.
The pigment itself is thermally stable to very high temperatures (many grades specified ~800–1000°C as calcination stability), but practical polymer processing temperatures are far lower — nonetheless, test for shade shift and interaction with your resin and additives at your processing temperature (e.g., 180–320°C for common thermoplastics). Conduct small-scale trials for color, viscosity and migration before production runs.
Pigment Brown 24 is highly durable and opaque but can be more costly than organic browns; it is opaque (low transparency) so it is not suitable where translucency is required. Some formulations may need dispersing agents or grind adjustments to avoid streaking; environmental and regulatory requirements for chromium/antimony content should also be considered in sensitive applications.
