2-Mercaptobenzothiazole
Synonyms
Benzothiazole-2-thiol;
MBT;
2(3H)-Benzothiazolethione;
Category
Non-ionic surfactant
> Amine
>> Heteroaromatic Amine
>>> Thiazole and its Derivatives
Chemical Numbering System
CAS: 149-30-4
EINECS: 205-736-8
Molecular Formula & Molecular Weight
Molecular Formula: C7H5NS2; C7H5N1S2
Molecular Weight: 167.25
Structure
Properties
Appearance (1), solid.
Solubility slightly soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
100mg/kg[1] |
|
mouse oral LD50 |
1158mg/kg[1] |
|
quail oral LD50 |
> 2150mg/kg[1] |
|
rabbit skin LD50 |
> 7940mg/kg[1] |
|
rat inhalation LC50 |
> 1270mg/m3[1] |
|
rat intraperitoneal LD50 |
300mg/kg[1] |
|
rat oral LD50 |
100mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative, antirust, anticorrosive, dispersing, emulsifying, antistatic abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Product standards
(1), Chinese standards
(1a), GB/T 11407 Vulcanizing accelerator -- 2-Mercaptobenzothiazole (MBT)
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as antimicrobial agent, preservative.
Use as corrosion inhibitor.
Use as antistatic agent.
2, Polymer
Vulcanization accelerator in rubber. Stearic acid is required for activation.
3, Machinery
Extreme pressure additive, corrosion inhibitor in lubricating oils, metalworking fluids.
Manufacturers
References
[1]: ChemIDplus. 149-30-4, 2-Mercaptobenzothiazole
Update: 20200905(1);