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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Acid chlorides, coco

The substance is a mixture of the following components which hydrolyse rapidly in water to form HCl (CAS 7647-01-0) and the corresponding acid.

1) Lauroyl chloride (CAS 112-16-3): >=30 to <=70%
(hydrolysis product: lauric acid, CAS 143-07-7)

2) Tetradecanoyl choride (myristoyl chloride; CAS 112-64-1): >=10 to <=30%
(hydrolysis product: myristic acid, CAS 544-63-8)

3) Palmitoyl chloride (CAS 112-67-4): >=1 to <=20%
(hydrolysis product: palmitic acid, CAS 57-10-3)

4) Decanoyl chloride (CAS 112-13-0): >=1 to <=15%

(hydrolysis product: decanoic acid, CAS 334-48-5)

5) Stearoyl chloride (CAS 112-76-5): >=1 to <=15%

(hydrolysis product: stearic acid, CAS 57-11-4)

6) Octanoyl chloride (CAS 111-64-8): <=1 to <=10%

(hydrolysis product: octanoic acid, CAS 124-07-2)


After evaporation or exposure to the air, acid chlorides, coco and its hydrolysis products will be rapidly to moderately degraded by photochemical processes.

Parent compound: In contact with water the substance will hydrolyse rapidly (t1/2 < 24 h).

Hydrolysis products: readily biodegradable.


The parent compounds hydrolyse rapdily in water and form the corresponding acids and HCl. While HCl is inorganic, the acids are considered to be readily biodegradable.


Parent compounds and corresponding acids: Significant accumulation in organisms is not expected. However, the assessment of the bioaccumulation potential of the parent compound may be of low relevance due to the rapid hydrolysis of the acid chloride in aqueous solutions.

Transport and distribution

The parent compounds hydrolyse rapdily in wet environments and form the corresponding acids and HCl.

Hydrolysis products: Adsorption to the solid soil phase is expected at pH <= 7. Adsorption to the solid soil phase is not expected at pH > 7.

From the water surface the hydrolysis products (acyl halides) of acid chlorides, coco will not evaporate into the atmosphere.