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EC number: 269-133-1 | CAS number: 68187-89-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
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. The latter was determined by weight-of-evidence.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
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)
The assessment of the biodegradation potential of the parent substances may be of low relevance due to the rapid hydrolysis of the acid chlorides in aqueous solution, therefore the assessment is mainly based on the corresponding acids as their hydrolysis products.
Experimental data from ready biodegradability tests performed according to OECD or similar guidelines are available for the hydrolysis products octanoic acid (CAS 124 -07 -2; Henkel, 2004, ECHA 2012) and palmitic acid (CAS 57 -10 -3; Henkel, 1994, ECHA, 2012) as well as for lauric acid (CAS 143 -07 -7; ECHA, 2012) and stearic acid (CAS 57 -11 -4; ECHA, 2012). The results indicate that the substances are readily biodegradbale according to OECD criteria.
In addition QSAR estimates were calculated with 3 models for each of the hydrolysis compounds. The following models were used to estimate the biodegradability:
1) EPI Suite v4.1, BIOWIN v4.10
2) OASIS CATALOGIC v5.10.8 BOD Kinetic (OECD 301F) beta v.06.07
3) OASIS CATALOGIC v5.10.8 BOD 28 days MITI (OECD 301C) v3.04
Only valid data were taken into consideration if information on the applicability domain was given. The following table gives an overview on the experimental and estimated data.
Hydrolysis product |
CAS no. |
Experimental data |
Predictions |
||
CATALOGIC OECD 301F |
CATALOGIC OECD 301C |
BIOWIN v4.10 |
|||
Octanoic acid |
124-07-2 |
Key: ready biod. Supp.: biod. |
ready biod. |
ready biod. |
ready biod. |
Decanoic acid |
334-48-5 |
no data |
ready biod. |
ready biod. |
ready biod. |
Lauric acid / Dodecanoic acid |
143-07-7 |
Key: ready biod. Supp.: ready biod. |
ready biod. |
ready biod. |
ready biod. |
Myristic acid / Tetradecanoic acid |
544-63-8 |
no data |
ready biod. |
ready biod. |
ready biod. |
Palmitic acid / Hexadecanoic acid |
57-10-3 |
ready biod. |
ready biod. |
ready biod. |
ready biod. |
Stearic acid / Octadecanoic acid |
57-11-4 |
ready biod. |
ready biod. |
ready biod. |
ready biod. |
In a weight-of-evidence approach using the available experimental and QSAR data, it can be concluded that the hydrolysis products of acid chlorides, coco (CAS 68187 -89 -3) are readily biodegradable according to OECD criteria.
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