Besides the very low acute toxicity (LD₅₀ 7878 mg TMT 15^®/kg) TMT 15^® is practically not toxic for fish (LC₀ 13720 mg TMT 15^®/l) and water fleas (Daphnia magna, EC₅₀ 4224 mg TMT 15^®/l). TMT 15^® is not mutagen and shows no acute toxicity against bacterial population. The toxicity to green algae is low (IC₅₀ 273 mg TMT 15^®/l).

Download chart "Precipitation Agents / Quality"

TMT 15^® is classified "Irritant", Xi / R 36 - irritating to eyes. The usual precautionary measures for dealing with chemicals should be observed. Avoid contact to skin and eyes. Wear hand and eye protection.

Download chart "Precipitation Agents / Classification"

TMT 15^® has a good storage stability and is not considered as a dangerous substance according to the transport regulations. TMT 15^® is a safe product. Should TMT 15^® accidentally come into contact with acids no carbon disulphide and only minor amounts of hydrogen sulphide are released and the acidic form of TMT 15^® (TMT-H₃) would precipitate, which is practically insoluble in water. This reaction is reversible and the TMT sodium salt can be achieved again by the addition of caustic soda.

Download chart "Acid / Base Reaction of TMT 15^®"

As TMT 15^® is stable in the acidic range, it is directly added to the acidic scrubber water for the Hg-precipitation in some plants. The acid/base reaction of TMT is used to determine the TMT 15^® concentration.

For further information please see the current material safety data sheet