Barbital
Synonyms
5,5-Diethylbarbituric acid;
2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-;
Category
Non-ionic surfactant
> Amide
>> Lactams
Chemical Numbering System
CAS: 57-44-3
EINECS: 200-331-2
Molecular Formula & Molecular Weight
Molecular Formula: C8H12N2O3
Molecular Weight: 184.19
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
cat oral LDLo |
250mg/kg[1] |
|
chicken intravenous LDLo |
225mg/kg[1] |
|
mouse intraperitoneal LD50 |
178mg/kg[1] |
|
mouse oral LD50 |
600mg/kg[1] |
|
mouse subcutaneous LD50 |
630mg/kg[1] |
|
rabbit intraperitoneal LDLo |
225mg/kg[1] |
|
rabbit intravenous LDLo |
350mg/kg[1] |
|
rabbit oral LDLo |
275mg/kg[1] |
|
rabbit subcutaneous LDLo |
250mg/kg[1] |
|
rat intraperitoneal LD50 |
246mg/kg[1] |
|
rat subcutaneous LD50 |
450mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent hypnotic, sedative, dispersing 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, 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 pharmaceutical ingredient (For reference only.).
Manufacturers
References
[1]: ChemIDplus. 57-44-3, Barbital
Update: 20190818(1);