Registration Dossier

Administrative data

First-aid measures

General advices: Remove contaminated clothes. In case of unconsciousness move the person on his side to fresh air in a stable position. First aiders must take care first of all of their self-protection
In case of Inhalation:
Move the affected person from the area and make it stretch, if breathing is difficult, give oxygen, if breathing is absent use mechanical ventilation. Consult a physician in symptoms appear.
In case of Ingestion:
Do not induce vomiting unless on the advice of medical personnel, in case of vomiting tilt the patient forward or put it on the side with head facing down to keep the airways open and prevent aspiration. Don’t give anything by mouth to people who give signs of drowsiness or numbness, or who are about to lose consciousness. Consult a physician.
In case of Skin contact:
Remove contaminated clothing and wash thoroughly with water. Consult a physician.
In case of Eyes contact:
Wash immediately with plenty of water for at least 15 minutes taking care to keep the eyelids separated the eye, contact lens should be removed only by experienced personnel. Consult a physician.

Fire-fighting measures

Extinguishing media: Water spray, foam, dry chemical, carbon dioxide.
Special hazards arising from the substance or mix.: When heated to decomposition or under fire conditions it could be emitted toxic fumes like carbon monoxide or other typical organic combustion products.
Advice for firefighters: Fire fighters should use self-contained breathing apparatus and protective clothing

Accidental release measures

Small Losses:
Remove any source of ignition, stopping the source of the spillage, avoid contact with skin or inhalation, use PPE, clean up immediately using adsorbent materials. Collected material should be placed in proper container, labeled and sent to for final disposal.
Large losses:
Report immediately the incident and remove of unnecessary personnel from the area. Stop the spread and isolate the spilled material; Isolate sewers discharging to superficial waters and/or segregate any water runoff into collection basins or tanks to facilitate processing or disposal.
The personnel involved in containment and cleaning should wear appropriate personal protective equipment to minimize exposure.
The area must be thoroughly cleaned using adsorbent materials. Collected material should be placed in proper container, labeled and sent to for final disposal.

Handling and storage

Precautions for safe handling:
The substance must be handled in ventilated environment or with the appropriate local air extraction; avoid accumulation on surfaces; prevent contact with possible ignition sources; avoid contact with eyes, skin and clothing. Remove contaminated clothes and wash thoroughly after handling.

Conditions for safe storage / incompatibilities: Use container tightly closet and resistant, away from moisture and sunlight. Avoid contact with
air and light. Properly label containers in case of pouring and clean external container surfaces with proper detergents and /or solvents.

Transport information

Land transport (ADR/RID)

UN number:
3265
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Class:
8
Packaging group:
II
Labels:
CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Dimethyl butynedioate)
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Marine transport (IMDG)

UN number:
3265
Chemical name:
Dimethyl butynedioate
Class:
8
Packaging group:
II
Labels:
CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Dimethyl butynedioate)
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Air transport ICAO/IATA

UN number:
3265
Chemical name:
Dimethyl butynedioate
Class:
8
Packaging group:
II
Labels:
Corrosive liquid, acidic, organic, n.o.s (Dimethyl butynedioate)
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Exposure controls / personal protection

Protection for eyes /face:
Safety glasses goggles (EN 166), face shield or other full-face protection if it is required also airways protection.
Protection for skin /hands
Use chemical resistant gloves (EN374) with material compatible with solvent in which the substance is dissolved; the actual permeation time through te gloves and their life can be affected by mode of use, temperature and substance quantities handled.

Technical controls and ventilation
In Production or re-packaging plants: use general ventilation systems, or closed systems to ensure the isolation of the substance from the working personnel. Can be provided additional security according to specific “control band” established for the substance.

Stability and reactivity

The substance is stable when kept in recommended normal storage conditions.

Disposal considerations

Avoid material contact with round or water (do not dispose in sewer systems). Small quantities can be disposed of with same
laboratory procedures: the product should be stored in closed containers and disposed of preferably by burning. Containers should be
sent to appropriate treatment and final disposal according to local regulations.