Sodium hydrogensulfite

Guidance on Safe Use

First-aid measures

General informations:

Move victim out of danger zone. Position and transport victim on their side. In case of respiratory distress, bring into semi-upright, seated position. Remove contaminated clothing immediatley and dispose off safely. Put victim at rest, cover with a blanket and keep warm. Do not leave victim unattended. In case of accident or if you feel unwell, seek medical advice immediately (show safety data sheet if possible).

Immediately get medical attention.

In case of inhalation:

- Provide fresh air.

- In case of breathing difficulties administer oxygen.

- No mouth-to-mouth or mouth-to-nose resuscitation.

- Use respiratory bag or oxygen resuscitation apparatus.

In case of skin contact:

- Remove contaminated clothing immediatley and dispose off safely.

- After contact with skin, wash immediately with plenty of water.

In case of eye contact:

- If product gets into the eye, keep eyelid open and rinse immediately with large quantities of water, for at least 5 minutes.

- Subsequently consult an ophthalmologist.

- Protect the eye that is not injured.

In case of ingestion:

- Rinse mouth immediately and drink large quantities of water.

- Do not induce vomiting.

Self-protection of the first aider:

- First aid assistant: Pay attention to self-protection!

Information to physician:

Routes of exposure:

- The substance can be absorbed into the body by ingestion.

Hazards:

- May cause allergy or asthma symptoms or breathing difficulties if inhaled (effects of short-term exposure).

- Repeated or prolonged inhalation exposure may cause asthma.

Symptoms: Cough, shortness of breath, sore throat and laboured breathing (in case of inhalation). Redness and pain (in case of eye contact). Abdominal pain, diarrhoea, nausea and vomiting (in case of ingestion).

Treatment: First Aid, decontamination, treatment of symptoms.

Fire-fighting measures

Suitable extinguishing media:

- Water.

- Foam.

- Carbon dioxide (CO2).

- Extinguishing powder.

Extinguishing media which must not be used for safety reasons: none special

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

In case of fire may be liberated: sulphur oxides.

Special protective equipment for fire-fighters:

- Wear full chemical protective clothing.

- In case of fire: Wear self-contained breathing apparatus.

Additional information:

Intervention Actions-General:

- Keep upwind.

- Put on protective equipment before entering danger area.

Intervention Actions-Fire (involving the substance):

- Gives off toxic and irritant fumes when heated or burning.

- Heating of container(s) may cause pressure rise with risk of bursting.

- Keep container(s) cool with water.

- Extinguish with water jet.

- Use water spray to knock down fire fumes if possible.

- Avoid unnecessary run-off of extinguishing media which may cause pollution.

Accidental release measures

Personal precautions (spillage):

- Wear personal protection equipment.

Environmental precautions:

- Stop leaks if possible.

- Contain spillage by any means available.

- Cover drains.

- Do not allow to enter into soil/subsoil.

- Do not empty into drains or the aquatic environment.

Additional information:

- Collect leaking liquid in covered plastic containers.

- Absorb remaining liquid in sand or inert absorbent and remove to safe place.

- Clean contaminated objects and areas thoroughly observing environmental regulations.

Handling and storage

Handling

Advices on safe handling:

Protective measures:

- Wear personal protection equipment.

- Do not eat, drink, smoke or sneeze at the workplace.

- Dangerous areas must be delimited and marked with appropriate warning and safety signs.

- In the immediate working surroundings there must be: Emergency spray installed. provide eye wash and label its location conspicuously.

- Provide sufficient washing facilities.

- Fill only into labelled container.

- Instruction on the hazards and the protective measures using instruction manual are required with signature.

- Working areas must be arranged in such a manner that they can be cleaned at all times.

Technical measures:

Measures to prevent aerosol and dust generation:

- It is recommende to design all work processes always so that the following is excluded: Inhalation. Skin contact. Eye contact.

- If handled uncovered, arrangements with local exhaust ventilation should be used if possible.

Measures required to protect the environment:

- Cover drains.

- Do not allow to enter into soil/subsoil.

- Do not empty into drains or the aquatic environment.

Specific requirements or handling rules:

- The floor should be leak tight, jointless and not absorbent.

Precautions against fire and explosion:

- Usual measures for fire prevention.

Storage:

Technical measures and storage conditions:

- Keep container tightly closed.

- Keep/Store only in original container.

- Protect against: Humidity. UV-radiation/sunlight.

Hints on storage assembly:

- Keep away from food, drink and animal feedingstuffs.

Further information on storage conditions:

- Storage class: 8 B

- Storage temperature: 10-27°C

- Relative air humidity: 10-55%

- Maximum period of storage: 1 year

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

Not applicable, because the substance is not a hazardous material with respect to these transportation regulations.

Shipping information

Proper shipping name and description:

no data

Chemical name:

Sodium hydrogensulfite approx. 40%

Language:

English

Labels:

not applicable

SpecialProvisions

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

UN number:

Not applicable, because the substance is not a hazardous material with respect to these transportation regulations.

Shipping information

Proper shipping name and description:

no data

Chemical name:

Sodium hydrogensulfite approx. 40%

Language:

English

Labels:

not applicable

Remarks

Marine transport (UN RTDG/IMDG)

UN number:

Not applicable, because the substance is not a hazardous material with respect to these transportation regulations.

Shipping information

Proper shipping name and description:

no data

Chemical name:

Sodium hydrogensulfite approx. 40%

Labels:

not applicable

Remarks

Air transport (UN RTDG/ICAO/IATA)

UN number:

Not applicable, because the substance is not a hazardous material with respect to these transportation regulations.

Shipping information

Proper shipping name and description:

no data

Chemical name:

Sodium hydrogensulfite approx. 40%

Labels:

not applicable

Remarks

SpecialProvisions

Exposure controls / personal protection

Exposure limit values

Occupational exposure limit value (sulphur dioxide - 7446-09-5):

- AGW (Germany): 0.5 ppm; 1.3 mg/m³ (long term).

- AGW (Germany): 0.5 ppm (STV 15 minutes average value; a momentary value of 1 mL/m³ (2.7 mg/m³) should not be exceeded); 1.3 mg/m³ (short term).

- Belgium and Spain: 2 ppm; 5.3 mg/m³ (long term).

- Belgium and Spain: 5 ppm; 13 mg/m³ (short term).

- France: 2 ppm; 5 mg/m³ (long term).

- France: 5 ppm; 10 mg/m³ (short term).

- Netherlands: 0.7 mg/m³ (short term).

- United States: 5 ppm; 13 mg/m³ (long term).

Personal protection equipment:

- Respiratory protection required in case of: Handling larger quantities exceeding critical value.

- Suitable respiratory protective equipment: Combination filtering device (DIN EN 141).

- Type of mask: Half-face mask (DIN EN 140).

- Filtering device: E-P2 or E-P3

Hand protection:

- Use protective gloves.

- The glove material must be sufficiently impermeable and resistant to the substance.

- Check the tightness before wear.

- Gloves should be well cleaned before being removed, then stored in a well ventilated location.

- Pay attention to skin care.

- Textile or leather gloves are completely unsuitable.

- Suitable materials for gloves are (brakthrough time>=8 hours): NR (Natural rubber (Caoutchouc), Natural latex) - NR (0,5 mm); CR (polychloroprenes, Chloroprene rubber) - CR (0,5 mm); NBR (Nitrile rubber)- NBR (0,35 mm); Butyl rubber - Butyl (0,5 mm); FKM (fluororubber) - FKM (0,4 mm); PVC (Polyvinyl chloride)- PVC (0,5 mm).

The times listed are suggested by measurements taken at 22°C and constant contact. Temperatures raised by warmed substances, body heat, etc. and a

weakening of the effective layer thickness caused by expansion can lead to a significantly shorter breakthrough time. In case of doubt contact the gloves'

manufacturer. A 1.5-times increase / decrease in the layer thickness doubles / halves the breakthrough time. This data only applies to the pure substance. Transferred to mixtures of substances, these figures should only be taken as an aid to orientation.

Eye protection:

- Suitable eye protection: Tightly sealed safety glasses.

Protective clothing:

- Suitable protection of the body: Chemical resistant safety shoes. Protective clothing: DIN EN 13034

General health and safety measures:

- When using do not eat, drink, smoke, sneeze.

- Wash hands and face before breaks and after work and take a shower if necessary.

- Draw up skin protection programme.

- Used working clothes must not be worn outside the working area.

- Separate storage of work clothes. Immediately remove any contaminated clothing, shoes or stockings.

- In the immediate working surroundings there must be: Emergency shower installed. Make available sufficient washing facilities. Provide eye shower and label its location conspicuously.

- Set out skin protection guidelines.

- Only wear fitting, comfortable and clean protective clothing.

Stability and reactivity

Conditions to avoid:

- In case of warming: Danger of bursting container.

- Thermal decomposition can lead to the escape of irritating gases and vapours.

Materials to avoid:

- Not combustible.

- Gives off irritating or toxic fumes (or gases) in a fire.

- Contact with acids liberates toxic gas.

Hazardous decomposition products: sulphur dioxide; gas/vapours, irritant.

Disposal considerations

Appropriate disposal/Product:

- Collect the waste separately.

- Waste disposal according to EC-regulations 75/442/EEC and 91/689/EEC in the corresponding versions, covering waste and dangerous waste. Dispose of waste according to applicable local, state, and federal regulations.

List of proposed waste codes/waste designations in accordance with EWC:

Waste codes packing:

- The allocation of waste identity numbers/waste descriptions must be carried out according to the EEC, specific to the industry and process.