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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Dihexadecyl peroxodicarbonate is classified as a peroxidetype F. Flammability is an intrinsic hazard in this class.

The Self-Accelerating Decomposition Temperature (SADT) of the substances is 40°C (reference SADT: CLP regulations and UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th revised edition, sub-sections 28.1, 28.2, 28.3 and Table 28.3

Dihexadecyl peroxodicarbonate is a white organicpowderwith afaintodour.So: The substance is not an aerosol or a gas.

Themelting rangeof dihexadecylperoxodicarbonate is 49°C - 57°C.

The relativedensityof dihexadecyl peroxodicarbonate is 1.020 or 1.035, depending on the physical appearance (flakes/powder) and purity.

GranulometryLight microscopic examination revealed that both samples Dihexadecyl peroxodicarbonate particles < 100 µm are non-fibrous.

Dihexadecyl peroxodicarbonate FL ( flakes) consists of less than 1% w/w 100 µm particles. Consequently no PSD measurement of the fraction < 100 µm has to be performed .

Dihexadecyl peroxodicarbonate L has 3.6 % m/m particles < 100 µm. This exceeds the 1% m/m threshold. The characteristics of the PSD of the fraction < 100 µm are: d10 36.4 µm d50 65.1 µm d90 97.3 µm From the whole product L 0.036% is < 10 µm and 0.0% is < 5 µm.

Thevapour pressureof dihexadecyl peroxodicarbonate at 20°C is far below 0.01 Pa.

Thecalculated partition coefficientlog Kow of dihexadecyl peroxodicarbonate  is 15.1 - 15.9 at 25°C. No experimental determination is possible.

Thewater solubilityat 20°C of dihexadecyl peroxodicarbonate is lower than 1 µg/L, the detection limit.

The substance hasno explosiveand nooxidisingproperties.

 The study on corrosion towards metal is technically not feasible.

Additional information