L-methionine

Guidance on Safe Use

First-aid measures

Description of first aid measures

Pay attention to self-protection

Remove victims from hazardous area. Immediately remove soiled or soaked clothing and remove it to a safe distance. Keep victim warm, in a stabilized position and covered.

Do not leave victims unattended

If the casualty is unconscious: Place the victim in the recovery position

In case of

inhalation :

Inhalation is possible if aerosols, mists, dusts, or smoke form

Move victims into fresh air

If the causality is no breathing perform mouth to mouth resuscitation, notify emergency physician immediately.

skin contact :

wash off immediately affected area immediately with plenty of water for at least 15 minutes.

If symptoms persist : consult a physician for treatment.

eye contact

with eye held open, thoroughly rinse immediately with plenty of water for at least 10 minutes

in case of discomfort : consult an ophthalmologist

ingestion :

rinse out mouth

consult a physician immediately

Most important symptoms and effects, both acute and delayed

no damage being expected.

Indication of any immediate medical attention and special treatment needed

This substance does not have any noteworthy noxious potential.

Damage to health is thus not expected.

Fire-fighting measures

Extinguishing media

All extinguishing substances suitable.

Special hazards arising from the substance or mixture

In the case of fire, the following hazardous smoke fumes may be produced :

Carbon monoxide -Carbon dioxide - Nitrogen oxides (NOx) , possible CH3SH, (CH3)2S.

Advice for fire-fighters.

Wear personal protective equipment.

In the event of fire, wear self-contained breathing apparatus.

Fire residues should be disposed in accordance with the regulations.

Burning time ; UNO K1 4.1 :> 45 seconds (not classified )

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Wear personal protective equipment

Keep unauthorized persons away.

Environmental precautions

Do not allow the product into the following compartments: soil, stretches of water, drainage systems.

In case of pollution, inform competent authorities

Methods and material for containment and cleaning up

Methods for cleaning up

Pick up mechanically. Collect in a suitable containers.

Waste to be packed like clean product and to be marked. Identification label on packages not to be removed until recycling.

Waste must be eliminated following local authorities requirements.

Handling and storage

Precautions for self handling

Avoid dust formation. Take precautionary measures against static discharges.

Ensure suitable suction/aeration at the work place and with operational machinery.

Keep away from sources of ignition – No smoking

Further information: VDI 2263 "Dust fires and dust explosions; dangers, evaluation, preventive measures.”

Conditions for safe storage, including any incompatibilities

Store at ambient temperature, in a dry and dark place in its original packaging, tightly closed

Transport information

Shipping

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

Shipping

Remarks

Shipping

Remarks

Additional transport information

Additional information

Special provisions / remarks / other:

Product non dangerous in the meaning of transport regulations.

Exposure controls / personal protection

Control parameters

Exposure limit for dust general rule

Control parameters 5 mg/m3

- 10 mg/m3

VME (F) INRS (FR)

type of exposure : fine dust - total dust

Suitable measuring processes are: DIN EN 481

NIOSH method 0500 - NIOSH method 0600

Exposure controls

Personal protective equipment :

 - respiratory protection equipment :

if dust occurs : dust mask with P1 particle filter

- hand protection : wear gloves

Brief contact only :

Glove material rubber; Nitril for example,

Material thickness minimum 0,11mm

for longer periods or large amounts

Glove material Nitril,/Chloroprene for example,

Material thickness minimum 0,65mm

 - eye protection :

safety glasses with side-shields

if dust occurs :basket-shaped glass.

- skin and body protection :

use lab protective clothing

or when handling for a prolonged exposure cloth specific for chemical products.

Hygiene measures

Avoid contact with skin and eyes

No eating, drinking, smoking or snuffing tobacco at work.

Wash face and/or hands before break and end of work.

Protective measures

Handle in accordance with good industrial hygiene and safety practices.

If there is the possibility of skin/eye contact, the indicated hand/eye/body protection should be used.

Stability and reactivity

Reactivity

no reactivity known to occur with correct handling and storage.

Chemical stability

stable at ambient temperature

thermic stability : sublimation about 200°C (TG test)

Possibility of hazardous reactions

no dangerous reaction are known to occur with correct handling and storage.

Conditions to avoid

avoid moisture , sunrays, heat.

on grinding inertisation is necessary.

Incompatible materials

no incompatible material known.

Hazardous decompositions products

Carbon monoxide -Carbon dioxide - Nitrogen oxides (NOx) , probably CH3SH, (CH3)2S.

Disposal considerations

Waste treatment methods

Disposal according to local authority regulations

Waste to be packed like clean product and to be marked. Identification label on package not to be removed until recycling.

Waste Key Number : No waste key number as per the European Waste Types List can be assigned to this product, since such classification is based on the (as yet undetermined) use to which the product is put by the consumer. The waste key number must be determined as per the European Waste Types List (decision on EU Waste Types List 2000/532/EC) in cooperation with the disposal firm / producing firm / official authority.