Dazomet
Synonyms
2H-1,3,5-Thiadiazine-2-thione, tetrahydro-3,5-dimethyl-;
Category
Non-ionic surfactant
> Amine
>> Ester-group Amine
>>> Lactone-group Amine
Chemical Numbering System
CAS: 533-74-4
EINECS: 208-576-7
Molecular Formula & Molecular Weight
Molecular Formula: C5H10N2S2
Molecular Weight: 162.28
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Physical - chemical properties
|
Water solubility, g/L |
3 (20°C)[1] |
Stability stable. Sensitive to temperature (> 50°C), water. Easily hydrolyzed. Under acidic condition, hydrolyzed to carbon disulfide, formaldehyde, methylamine.
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
|
dog intraperitoneal LD50 |
47mg/kg[2] |
|
dog intramuscular LDLo |
250mg/kg[2] |
|
guinea pig oral LD50 |
160mg/kg[2] |
|
mouse intraperitoneal LD50 |
98mg/kg[2] |
|
mouse oral LD50 |
180mg/kg[2] |
|
mouse skin LD50 |
2400mg/kg[2] |
|
mouse subcutaneous LD50 |
248mg/kg[2] |
|
rabbit intraperitoneal LD50 |
127mg/kg[2] |
|
rabbit oral LD50 |
120mg/kg[2] |
|
rabbit skin LD50 |
7000mg/kg[2] |
|
rat inhalation LC50 |
8400mg/m3/4H[2] |
|
rat intraperitoneal LD50 |
87mg/kg[2] |
|
rat oral LD50 |
320mg/kg[2] |
|
rat skin LD50 |
2260mg/kg[2] |
|
rat subcutaneous LD50 |
470mg/kg[2] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative, insecticidal 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), NY/T 3573 Dazomet technical material
(1b), NY/T 3590 Dazomet granules
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 pesticide (soil disinfectant).
Use as antimicrobial agent, preservative. For example, used in agriculture, woods, water treatment, paints.
Manufacturers
References
[1]: HSDB. 533-74-4, Dazomet
[2]: ChemIDplus. 533-74-4, Dazomet
Update: 20200815(1);