Diacetyl-HB Encyclopedia Jan 25, 2022

   Butanedione is an organic compound with the molecular formula of C4H6O2, a light yellow to yellow-green liquid with a strong odor, soluble in water, ethanol anether , used as a food flavor carrier.


Physical and chemical constants of matter

National standard number: 32081

Molecular formula: C4H6O2 ; CH3COCOCH3


Appearance and properties: slightly greenish-yellow liquid with strong odor (buttery odor)
Solubility: Soluble in water, ethanol, ether
Relative density (water=1) 0.99; relative density (air=1) 3.00
Stability: stable
Hazard mark: 7 ( flammable liquid )
Related categories: Organics; Biochemistry; Reagents for Oligosaccharide Synthesis; ketone Flavor; ;Flavors;Carbonyl Compounds;B;Bioactive Small Molecules;Building Blocks;C3 to C6;Carbonyl Compounds;Cell Biology;Chemical Synthesis;Ketones;Organic Building Blocks; body; pharmaceutical raw materials
Mol file: 431-03-8.mol

Content analysis

According to the method one (hydroxylamine method) in the determination method of aldehydes and ketones (OT-7). The sample size taken was 500 mg. The equivalence factor (e) in the calculation is taken as 21.52.
It should be measured with a non-polar column according to GT-10-4.

Limited use

FEMA (mg/kg): soft drinks 2.5; cold drinks 5.9; confectionery 21; baked goods 44; puddings 19; gum 35; shortening 11.

Security Information

Category: Flammable Liquid
Toxicity classification: high toxicity
Acute toxicity: Oral - rat LD50: 1580 mg/kg; Oral - mouse LD50: 250 mg/kg
Irritation Data: Dermal - Rabbit 500 mg/24h Moderate
Flammability Hazardous characteristics: flammable in case of open flame, high temperature and oxidant; burning produces irritating smoke
Extinguishing media: dry powder, dry sand, carbon dioxide, foam, 1211 extinguishing agent 
Dangerous goods symbol F, Xn
Hazard Category Code 11-20/22-38-41-36/38-20/21/22-37/38
Safety Instructions 9-16-26-37/39-36/37/39-39
Dangerous Goods Transport Number UN 2346 3/PG 2
WGK Germany 2
RTECS No. EK2625000
F13
HazardClass 3
PackingGroup II
Customs code 29141990
Hazardous Substances Data 431-03-8 (Hazardous Substances Data)

Product Usage

It is used to formulate cream flavors and is the main raw material for the production of pyrazine flavors; GB 2760-96 stipulates that it is temporarily allowed to use edible flavors. Mainly used for the preparation of cream, cheese fermentation flavor and coffee and other flavors.
It is a flavor enhancer for cream, margarine, dry cool and candy.
Also used as gelatin hardener, photographic adhesive. ;
It is mainly used for the preparation of food flavors, the main flavor of cream flavors, and can also be used in milk, cheese and other flavors. Such as berries, caramel, chocolate, coffee, cherries, vanilla beans, honey, cocoa, fruity, wine, smoke, rum, nuts, almonds, ginger, etc. It can also be used in a small amount in fresh fruit fragrance or new type of fragrance for cosmetics. Used as solvent, organic synthesis intermediate.
It is an important reagent for the identification of nickel.

safety term

S16 Keep away from sources of ignition.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection. 

Emergency treatment and disposal methods

Emergency release treatment

Evacuate personnel from the leaked contaminated area to a safe area, prohibit irrelevant personnel from entering the contaminated area, and cut off the fire source. It is recommended that emergency personnel wear self-contained breathing apparatus and general fire protection clothing . Stop leaks when safe to do so. Water mist will reduce evaporation, but will not reduce the flammability of the spill in confined spaces. Absorb with activated carbon or other inert materials, collect and dispose of in waste disposal sites. It can also be rinsed with a large amount of water, and the diluted rinse water can be put into the waste water system. If there is a large amount of leakage, use the embankment to contain it, and then collect, transfer, recycle or waste it after harmless treatment.

Protective measures

Respiratory protection: In high concentration environments, wear protective masks .
Eye Protection: Wear chemical safety goggles when necessary .
Body protection: Wear appropriate work clothes.
Hand Protection: Wear protective gloves .
Others: Smoking is strictly prohibited at the work site. Pay attention to personal hygiene. Avoid prolonged repeated exposure.

First-aid

Skin Contact: Remove contaminated clothing and rinse thoroughly with running water.
Eye Contact: Immediately lift eyelids and rinse thoroughly with plenty of running water.
Inhalation: Quickly leave the scene to fresh air. Keep the airway open. Provide artificial respiration if necessary. seek medical attention.
Ingestion: If swallowed by mistake, drink plenty of warm water to induce vomiting. seek medical attention.
Extinguishing methods: foam, dry powder, carbon dioxide , sand. Fire extinguishing with water is ineffective.







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