Registration Dossier
Registration Dossier
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EC number: 270-299-2 | CAS number: 68424-38-4 This substance is identified by SDA Substance Name: C16-C18 alkyl carboxylic acid sodium salt and SDA Reporting Number: 19-006-04.
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
- EC10 = 850 mg active matter/l after 30 min | Pseudomonas putida | DIN 38412, Part 8 | Fatty acid C 16-18, sodium salt
- EC50 = 8.8 mg/l after 30 min related to decrease in light intensity | Photobacterium phosphoreum | DIN 38412, Part 32 | sodium laurate
Key value for chemical safety assessment
Additional information
The acute bacterial toxicity of Fatty acids, C16-18 and C18-unsatd., sodium salts was determined in the Pseudomonas oxygen consumption inhibition test in accordance with the German standard method DIN 38412.
The product was tested in a concentration range of 700 to 1000 mg product/l (nominal).
The following-effect concentration was determined:
EC0: 700 mg product/l = 595 mg active matter/l
EC10: 1000 mg product/l = 850 mg active matter/l
Therefore, fatty acids, C16-18 and C18-unsatd., sodium salts turned out to be weakly toxic to the test organism Pseudomonas putida.
Also, the acute bacterial toxicity of sodium laurate was determined in the Luminescent bacteria test in accordance with the German standard method DIN 38 412 part 32 (DEV L 32).
Sodium laurate was tested in the concentration of 50 mg/l.
The following-effect concentration was determined:
EC50: 8.8 mg/l
EC20: 4.2 mg/l
Therefore, sodium laurate turned out to be toxic to the test organism Photobacterium phosphoreum.
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