Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

First-aid measures

General information

Remove contaminated clothing and shoes immediately, and launder thoroughly before reusing. In case of accident

or if you feel unwell, seek medical advice immediately. If the patient is likely to become unconscious, place and

transport in stable sideways position.

After inhalation

Remove affected person from the immediate area. Ensure supply of fresh air. Irregular breathing/no breathing:

artificial respiration. Summon a doctor immediately.

After skin contact

When in contact with the skin, clean with soap and water.

After eye contact

Separate eyelids, wash the eyes thoroughly with water (15 min.). Seek medical assistance.

After ingestion

Call in a physician immediately and show him the Safety Data Sheet. Rinse out mouth and give plenty of water to

drink. Administer vitamin C as antidote and cause immediate vomiting. Toxic effect is superior to acid effect.

Fire-fighting measures

Suitable extinguishing media

Product itself is non-combustible; adapt fire extinguishing measures to surrounding areas.

Extinguishing media that must not be used for safety reasons

Water

Special exposure hazards arising from the substance or preparation itself, combustion products, resulting

gases

In case of combustion evolution of dangerous gases possible.

Special protective equipment for fire-fighters

Use self-contained breathing apparatus. Wear protective clothing.

Other information

The product is highly hygroscopic. Fire residues and contaminated firefighting water must be disposed off in

accordance with the local regulations.

Accidental release measures

Personal precautions

Refer to protective measures listed in sections 7 and 8. Remove persons to safety. Avoid dust formation. Use

breathing apparatus if exposed to vapours/dusUaerosol.

Environmental precautions

Do not discharge into the drains/surface waters/groundwater.

Methods for cleaning up/taking up

Take up mechanically. Send in suitable containers for recovery or disposal.

Handling and storage

Handling

Advice on safe handling

Provide good ventilation of working area (local exhaust ventilation, if necessary). Avoid the formation and deposition

of dust. If workplace exposure limits are exceeded, respiratory protection approved for this particular job must be

worn.

Storage

Requirements for storage rooms and vessels

Store product in closed containers. Keep only in the original container.

Advice on storage assembly

Do not store together with foodstuffs. Keep away from water. Do not store together with: Metals which are attacked

by an alkaline medium. Oxidizing agents

Further information on storage conditions

Keep container tightly closed and dry in a cool, well-ventilated place. Protect from atmospheric moisture and water.

Product is hygroscopic.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
2630
Shipping information
Proper shipping name and description:
SELENITES
Chemical name:
sodium-selenite
Labels:
6.1; Environmentally hazardous substance mark: Symbol "fish and tree"
SpecialProvisionsopen allclose all

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

UN number:
2630
Shipping information
Proper shipping name and description:
SELENITES
Chemical name:
sodium-selenite
Labels:
6.1; Environmentally hazardous substance mark: Symbol "fish and tree"
Remarksopen allclose all

Marine transport (UN RTDG/IMDG)

UN number:
2630
Shipping information
Proper shipping name and description:
SELENITES
Chemical name:
sodium-selenite
Labels:
6.1; Marine pollutant mark: Symbol "fish and tree"
Remarksopen allclose all

Air transport (UN RTDG/ICAO/IATA)

UN number:
2630
Shipping information
Proper shipping name and description:
Selenites
Chemical name:
sodium-selenite
Labels:
6.1
Remarksopen allclose all
SpecialProvisionsopen allclose all

Exposure controls / personal protection

'Exposure limit values

sodium-selenite

CAS no. 10102-18-8

EC no. 233-267-9

List of approved workplace exposure limits (WELs) / EH40

Selenium compounds, except hydrogen selenide

TWA 0.1 mg/m3

Exposure controls

Personal protective equipment

Respiratory protection

If workplace exposure limits are exceeded, a respiration protection approved for this particular job must be worn.

Short term: filter apparatus, Filter P3

Hand protection

Chemical resistant gloves (EN 374)

Appropriate Material neoprene

Eye protection

Tightly fitting safety glasses (EN 166).

Skin protection

Acid-resistant protective clothing

General protective and hygiene measures

Do not eat, drink or smoke during work time. Keep away from foodstuffs and beverages. Wash hands before breaks

and after work. Do not inhale dust. Store work clothing separately. Avoid contact with eyes and skin. Provide eye

wash fountain in work area. Have emergency shower available.

Stability and reactivity

Conditions to avoid

The product is highly hygroscopic. Aqueous solutions react alkaline.

Materials to avoid

Metals which are attacked by an alkaline medium. OXidizing agents

Hazardous decomposition products

At strong heating. decomposition under selenium dioxide formation may occur.

Disposal considerations

Product

Allocation of a waste code number, according to the European Waste Catalogue, should be carried out in agreement

with the regional waste disposal company.

Packaging

Contaminated packaging should be emptied as far as possible and after appropriate cleansing may be taken for

reuse. Packaging that cannot be cleaned should be disposed of in agreement with the regional waste disposal

company.