But-3-en-3-olide

Guidance on Safe Use

First-aid measures

General information:

Remove soiled or soaked clothing immediately

Adhere to personal protective measures when giving first aid

Sek medical advice immediately

After inhalation:

Remove the casualty into fresh air and keep him calm

No direct breathing aid should be given by the first medical helper

Call in a physician immediately and show him the Safety Data Sheet

After contact with skin:

In case of contact with skin wash off immediately with soap and water

Cosult a doctor if skin irritation persists

After contact with eyes:

Rinse immediately with gently running water for 15 minutes, maintaining eyelids open. Consult at once an ophthalmologist or a physician

Summon a doctor immediately

After ingestion:

Call in a physician immediately and show him the Safety Data Sheet

Induce vomiting in case madical help is not readily available and when the patienr is concious (Vomit should not go into the respiratory air tract)

Advice to doctor:

Treatment:

By irritation of the lungs: First treatment with Corticord-Spray, e.g. Auxilon, Pulmicort (Auxilon and Pulmicort are registered Trade Marks)

Fire-fighting measures

Suitable extinguishing media:

carbon dioxide

water jet spray

Extinguishing media that must not be used for safety reasons:

foam

powder

Special protective equipment for fire fighting:

Impermeable protective clothing (jacket and trousers) with helmet

Use self-contained breathing apparatus

Further information:

Fire residues and contaminated firefighting water must be diposed of in accordance with the local regulations

Accidental release measures

Personal precautions:

General protective measures:

On no account inhale vapours

Avoid contact with eyes and skin

Hygiene measures:

Keep away from foodstuffs and beverages

Wash hands before breaks and after work

Repiratory protection: Protective mask, Multi purpose filter ABEK

Hand protection: Butyl rubber gloves, Minimum breakthrough Time/gloves: 480 min, Minimum thickness/gloves: 0.6 mm

These types of protective gloves are offered by various manufacturers. Pleas note the manufacturers detalied statments, especially about the minimum thickness and the minimum breakthough time. Consider also the particular work conditions under which the gloves are beiung used.

Eye protection: tightly fitting sfety glasses

Body protection: protective clothing

Environmental precautions:

Do not allow entry to drains, water courses or soil

Methods for cleaning up/taking up:

Taking into account the environmental regulations, clean contaminated equipment and floors thoroughly using water, acetone or dilute ammonia solution (< 10 %)

When picked up, treat material as prescribed under heading "Disposal"

Handling and storage

Advice on safe handling:

Provide good ventilation of working area (local exhaust ventilation if necessary)

Advice on protection against fire and explosion:

Take precautions against accumulation of electrostatic charge. The product is combutible

Requiremenst for storage rooms and vessels:

Use stainless steel containers

Use aluminium containers

Use glass containers

Advice on storage compatibility:

Do not store or transport together with food stuffs

Further information on storage conditions:

Keep only in the origonal container at temperature not exceeding 25 °C

Container should not be closed air-tight

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

UN 2521

Shipping information

Proper shipping name and description:

Diketene, stabilized

Chemical name:

4-Methylen-2-oxetanon

Language:

English

Labels:

6.1, 3

Primary Risk: 6.1
Secondary risk: 3
Hazard No.:663

Special provisions / remarks

Remarks:

shipment permitted

Inland waterway transport (UN RTDG/ADN(R))

UN number:

UN 2521

Shipping information

Proper shipping name and description:

Diketene, stabilized

Chemical name:

4-Methylen-2-oxetanon

Language:

English

Labels:

6.1, 3
Primary risk: 6.1
Secondary risk: 3
Hazard No.: 663

Special provisions / remarks

Remarks:

Shipment permitted

Marine transport (UN RTDG/IMDG)

UN number:

UN 2521

Shipping information

Proper shipping name and description:

Diketene, stabilized

Chemical name:

4-Methylen-2-oxetanon

Labels:

3
Primary risk: 6.1
Secondary risk: 3

Special provisions / remarks

Remarks:

Shipment permitted

Air transport (UN RTDG/ICAO/IATA)

UN number:

UN 2521

Shipping information

Proper shipping name and description:

Diketene, stabilized

Chemical name:

4-Methylen-2-oxetanon

Labels:

not assigned

Special provisions / remarks

Remarks:

Shipment not permitted

Additional transport information

Additional information

Special provisions / remarks / other:

ADR tunnel code restrictions: C/D

Exposure controls / personal protection

During its lifecycle the substance is handled under strictly controlled conditions and is rigorously contained in accordance Art. 18.

Based on the knowledge of the basic hazards to humans and environment technical, organizational and PPE measures are taken to minimize release and exposure of this substance. National regulatory requirements for the handling of chemicals are also fulfilled. Employees are regularly trained. The efficiency of these measures is controlled e.g. by workplace measurements. In case of deviations these measures are adapted.

Advice on safe handling:

Provide good ventilation of working area (local exhaust ventilation if necessary)

Advice on protection against fire and explosion:

Take precautions against accumulation of electrostatic charge. The product is combutible

Requiremenst for storage rooms and vessels:

Use stainless steel containers

Use aluminium containers

Use glass containers

Advice on storage compatibility:

Do not store or transport together with food stuffs

Further information on storage conditions:

Keep only in the origonal container at temperature not exceeding 25 °C

Container should not be closed air-tight

Personal precautions:

General protective measures:

On no account inhale vapours

Avoid contact with eyes and skin

Hygiene measures:

Keep away from foodstuffs and beverages

Wash hands before breaks and after work

Repiratory protection: Protective mask, Multi purpose filter ABEK

Hand protection: Butyl rubber gloves, Minimum breakthrough Time/gloves: 480 min, Minimum thickness/gloves: 0.6 mm

These types of protective gloves are offered by various manufacturers. Pleas note the manufacturers detalied statments, especially about the minimum thickness and the minimum breakthough time. Consider also the particular work conditions under which the gloves are beiung used.

Eye protection: tightly fitting sfety glasses

Body protection: protective clothing

Stability and reactivity

Thermal decompostion: from 60 °C (Heating rate: 3 K/min), Method: DTA, Autocatalysed

Thermal decomposition: 56 °C, Method: Thermal decomposition:/Method AZT 24

Hazardous reactions:

Addition of bases or strong mineral acids can cause sudden explosion with strong gas formation

Hazardous decomposition products:

Carbon monoxide and carbon dioxide

all

Methane

"rote Kohle", polymerisate

Disposal considerations

Product:

Slow mixing with dilute ammonia solution (< 10 %) in 15 - 20 parts excess.

Uncleaned packaging:

Packaging that cannot be cleaned should be disposed of as product waste