Succinic acid
Succinic acid
110-15-6
disodium succinate
Phthalocyanine pigment
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Compound green
Composite blue
The toxicity of disodium succinate
Release time:2016/3/21 16:29:56
        Disodium succinate is a white powder with a melting point of more than 400 degree C, a water solubility of more than 100 g/L. This chemical is stable at pH 4,7and 9 at 50 degree C for 5 days, and readily biodegradable. A vapour pressure of 1.16x10-5 Pa is calculated. A Log Pow of < -0.59 is estimated and the bioaccumulation potential of disodium succinate is expected to be low.

The toxicity of disodium succinate on aquatic organisms has been studied in three freshwater species belonging to three trophic levels. The toxicity tests were conducted using disodium succinate hexahydrate instead of the test substance because disodium succinate hexahydrate is not different to the test substance in aqueous solution and disodium succinate is stable as hexahydrate.

         In an algal growth inhibition test (OECD TG 201, Selenastrum capricornutum, open system), the 72 h ErC50 and the 72 h EbC50 were >998 mg/L. For daphnids, a 48 h EC0 of 997 mg/L and a 48 h EC50 > 997 mg/L were reported (OECD TG 202, Daphnia magna, static). For fish (OECD TG 203, Oryzias latipes, flow-through) a 96 h LC0 of 47.0 mg/L, 96 h LC50 >95.4 mg/L and 96 h LC100 > 95.4 mg/L were determined.

        Regarding chronic toxicity to algae, a 72 h NOErC of 998 mg/L and a NOEbC 998 mg/L (OECD TG 201,Selenastrum capricornutum, open system) were reported. For daphnids, the 21 d EC50 was more than 95.2 mg and a 21 d NOEC of 95.2 mg/L on reproduction and a 21 d LC50 >95.2 mg/L for parent daphnids were reported (OECD TG 211, Daphnia magna, semi-static).
        There is no information available on toxicity to terrestrial or other organisms.

Exposure

        Disodium succinate anhydrate and hexahydrate is used as a seasoning agent and raw material for plating reagent.This chemical is permitted for use as a food additive and no limit value for food additives exists in Japan. This chemical is naturally contained in shellfish. In Japan disodium succinate is being produced in its hexahydrate form and the annual production volume in Japan is ca. 3,000 tonnes.

        The main target environmental compartment of this chemical is water and once it is released into the aquatic phase,partitioning to other compartments is unlikely to occur.Occupational exposure to this chemical through inhalation and dermal routes is possible. Consumer exposure to this chemical through ingestion is possible.
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