SEMITI A100 vs Tronox A-HR
SEMITI A100 is sulfate-process anatase; Tronox A-HR is chloride. Different positioning — choose by cost vs absolute spec.
Tronox A-HR is one of the few chloride-process anatase grades on the market — premium positioning with very tight color spec and low metallic impurity. SEMITI A100 is sulfate-process anatase, positioned as the cost-optimized alternative.
For 90% of anatase applications, the sulfate-process performance differential is not visible in finished product, and the cost advantage of sulfate (typically 35–40% lower per kg) is the dominant economic driver.
Side-by-side specification
Typical published specs for the two grades. Customer-specific CoA on inquiry.
| Property | SEMITI A100 | Tronox A-HR |
|---|---|---|
| Process | Sulfate | Chloride |
| Color (b*) | ≤1.5 | ≤1.3 |
| Tinting strength | ≥1700 | ≥1750 |
| Particle size D50 | 0.15–0.25 μm | 0.18–0.22 μm |
| Pb / Cd | ≤5 / ≤1 ppm | ≤2 / ≤0.5 ppm |
| Landed cost (Asia) | 35–40% lower | Reference (premium) |
Bold amber indicates the column with the stronger value on that line.
When to choose which
- →General-purpose ink, paper filler, fiber delustering, rubber
- →Cost-sensitive applications where moderate spec is acceptable
- →High-volume newsprint and packaging paper
- →Specialty white art paper at premium grade
- →Pharma packaging paper with very tight heavy-metal spec
- →Premium specialty fiber where the brightest possible base is critical
Drop-in substitution
Pricing context
Tronox A-HR commands a 35–40% premium over SEMITI A100. For high-volume buyers, the cost gap can justify acceptance of the modest spec difference.
Sulfate (SEMITI A100) for the vast majority of anatase applications; chloride (Tronox A-HR) for premium-spec specialty.
Request SEMITI A100 sample for Tronox A-HR substitution trial
Free 25 kg sample for technical evaluation. We typically respond within 24 hours UTC+8. FOB / CIF / DDP terms available to most ports worldwide.