As a thiodiazole derivative, DMTD is an acronym for 2,5-dimercapto-1,3,4-thiodiazole. It is an ashless and multifunctional additive in lubricants, for it not only can work as a corrosion inhibitor and metal deactivator, but also function as an EP/AW agent. So it has found use in coolant, water-based fluids, metalworking fluids and other lubricants.
In addition, it is an important chemical intermediate in many industries, such as lubricant, pharmaceutical, rubber and electrochemistry industry for preparation of many other products.
"2,5-Dimercapto-1,3,4-thiadiazole (DMTD) has also been used for many years in flame-retardant products.
What's more, it is utilized in a variety of other applications including synthesizing polymers and heavy metal and basic salts; in cross linking halogenated polymers; in electrode compositions; as an intermediate or starting material for pharmaceuticals and dyes; as a chelating agent in the analysis of metals; in purifying and treating waste; and as a biocide.
Typical properties:
Item
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2,5-dimercapto-1,3,4-thiadoazole (DMTD)
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Physical state
|
Powder
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Appearance
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Cream to light yellow
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Assay
|
≥ 99.0
|
Density(20℃), g/cm 3
|
1.79
|
Melting point, ℃
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≥ 155
|
Nitrogen %
|
19.0
|
Sulfur %
|
64.0
|
Cooper Corrosion(100 C, 3 h)
|
1a
|
Moisture
|
≤ 0.50
|
Solubility
|
Soluble in water, ethanol, acetone and sisters; Slightly soluble in mineral base oils and hexane, ether, chloroform and toluene
|
CAS NO.: 1072-71-5
EINECS NO.: 214-014-1
Molecular formula: C2H2N2S3
Molecular Weight: 150.25
Synonyms: 1, 3, 4-Thiadiazole-2, 5-dithiol; 2, 5-Dimercapto-1, 3, 4-thiadiazole; DMTD(DMCT)
Application: Coolant, water-base fluids, metalworking fluids; Chemical intermediate in lubricant, pharmaceutical and rubber industries.
Recommended treatment level: 0.1%--1.0% in lubricants or as a chemical intermediate
Packaging: 25kg (net weight) per fiber drum