PTZ

Phenothiazine is a radical scavenger which can be used at high temperatures and under oxygen free conditions. Allessa is the worlds largest producer. Phenothiazine derivatives are available upon request.

Advantages of Prills versus Flakes:

-Uniform particle size gives improved solubility in acrylic acid and acrylate production.

-Greater bulk density liberates more storage space.

-Spherical shape and low dust content significantly reduce sticking of material.

-Less to none sticking properties result in easier handling and a better dosage control while feeding the production unit.

-Significant reduction in the dust. Prills leave our production dust free. A small amount of dust is nevertheless caused during transportation due to mechanical abrasion.

Characterization

Molecular weight: 199.3g/mol

Empirical formula: C12H9NS

CAS No.: 92-84-2

Shelf life: Minimum 2 years if stored correctly.

Our patented prills (left) offer optimal processing quality and improved storage and handling.

Quality Characteristics	Unit	Target value / Target area	Remarks
Appearance	-	Yellow to greenish prills	CoA
Assay	%a/a	≥99.5	CoA
Diphenylamine	%a/a	≤0.5	CoA
Particle size>500μm	%	≥98.0	CoA
Melting point	℃	≥184.0	TD
Heating loss	%	≤0.2	TD
Ash	%	≤0.1	TD

CoA: Listed on Certificate of Analysis, each lost is tested.

TD: Technical Data: Not routinely examined, therefore no certification possible.

Comparison of Prills versus Flakes（Red: prills VS Blue: flakes）

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