Standard chemical name: 1,3,5-triazine-2,4,6- (1H, 3H, 5H) - trithioketone trisodium salt

Common name: Trisodium Tripolythiocyanate; Trimercapto-triazine trisodium salt

Abbreviation: TMT (commonly known as TMT-15 or TMT-55 in industry)

English: Trithiocyanuric acid trisodium salt

EINECS：241-749-5

Molecular formula: C3N3Na3S3

Molecular weight: 243.22

MDL Number: MFCD00066479

Physical and Chemical Properties

Form (two major commodity forms in industry)

Solid: off white to light yellow crystalline powder (common specifications 53%~85%)

Liquid: Colorless/pale yellow alkaline aqueous solution (mainstream 15% aqueous solution TMT-15)

Melting point: 82-84 ℃

PH of aqueous solution: 11.5-13 (strongly alkaline)

Solubility: easily soluble in water; It is easy to precipitate trimeric thiocyanate when encountering acid

Stability: Avoid strong acids and oxidants; Storage at room temperature, not suitable for long-term exposure to air

The core principle of action is that the molecule carries three thiol anions, which can quickly chelate with heavy metal ions such as copper, lead, cadmium, mercury, nickel, zinc, silver, chromium, etc., forming a stable heavy metal thiotriazine chelate precipitate that is extremely insoluble in water. 

The biggest advantage is that it can remove complex heavy metals (complex heavy metal wastewater that cannot be treated by ordinary alkali precipitation). 

Main industrial applications (heavy metal capture agent/heavy metal precipitant)

- Industrial wastewater treatment (primary use)

- Removal of heavy metals from electroplating, circuit board, battery plants, smelting, waste incineration plants, and desulfurization wastewater in power plants;

- Solid waste stabilization

- Solidification of heavy metals in incineration fly ash and remediation of heavy metal contaminated soil;

- A small amount is used as an intermediate in chemical synthesis and as a surface treatment aid for metals.

Common product specifications

TMT-15:15% aqueous solution (the most commonly used in the market)

TMT-55: ≥ 55% solid

TMT-85: ≥ 85% high-purity solid

Brief safety tips

Alkaline chemicals, avoid direct contact with skin and eyes;

It is strictly prohibited to mix with strong acids: when encountering acids, insoluble organic sulfur precipitates may be released, which may produce toxic sulfur substances;

Not classified as high-risk dangerous goods, conventional chemical transportation;

The generated heavy metal sediment belongs to hazardous solid waste and needs to be disposed of in compliance.

Specification of TMT-15                       

Purity(%)                 ≥15                                      

pH                          10-12                                     

Appearance             Colorless or light yellow liquid    

Specification of TMT-53

Appearance              white crystalline powder

Assay %                  ≥53%

PH                           ≥12

Water %                  ≤1547             

It is a kind of heavy metal eliminating agent, developed to protect environment and avoid heavy metal pollution in waste water. It has extremely high heavy metal eliminating efficiency even with a small dosage. All other existing heavy metal eliminating agents tend to selectively react with some heavy metals and are smelly and toxic, while this product has conquered all these weaknesses. Na3T is a triazine component, capable to settle down almost all monovalent and divalent metals such as copper, cadmium, mercury, silver, lead and tin. It can also eliminate heavy metals that have already turned into complexes, so is especially suitable to settle down mercury, copper, cadmium, silver, lead, nickel and tin. Comparing to similar heavy metal repair agent, this product is less toxic and much safer, which is its important value.

Packaging

TMT-15:  25kg/plastic drum or 200kg/drum

TMT-53:  25kg/bag, 20mt/20"FCL

Storage

It should be stored in a shady, ventilating and dry storehouse. Its shelf life is one year. It can be still used if up to standard through retest after the specified date. Should start using the product in air-drying place. When radical changes of humidity occurs, it will recrystallize and agglomerate. Should pay attention to keep away from the radical changing environment during storage, and ensure good package.