Registration Dossier
Registration Dossier
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EC number: 220-971-6 | CAS number: 2950-43-8
Guidance on Safe Use
Administrative data
First-aid measures
4.1. Description of first aid measures
Immediately remove contaminated clothing. First aid personnel should pay attention to their own safety.
If inhaled:
After inhalation of dust. Keep patient calm, remove to fresh air, seek medical attention. After inhalation of decomposition products, remove the affected person to a source of fresh air and keep calm. Provide medical aid. Inhale corticosteroid dose aerosol.
On skin contact:
Immediately wash thoroughly with plenty of water, apply sterile dressings, consult a skin specialist.
On contact with eyes:
Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open, consult an eye specialist.
On ingestion:
Immediately rinse mouth and then drink plenty of water, do not induce vomiting, seek medical attention.
4.2. Most important symptoms and effects, both acute and delayed
Symptoms: Eye irritation, dyspnea, dazed state, nausea, lung oedema, skin corrosion, methaemoglobinaemia, Further symptoms are possible
Hazards: Symptoms can appear later.
4.3. Indication of any immediate medical attention and special treatment needed
Treatment: Pulmonary odema prophylaxis. Treat according to symptoms (decontamination, vital functions), treat with toluonium chloride to reverse methaemoglobinanaemia.
Fire-fighting measures
5.1. Extinguishing media
Suitable extinguishing media:
water spray, foam, dry powder, carbon dioxide
5.2. Special hazards arising from the substance or mixture
sulphur dioxide, Sulphur trioxide, nitrous gases
The substances/groups of substances mentioned can be released in case of fire.
5.3. Advice for fire-fighters
Special protective equipment:
Wear self-contained breathing apparatus and chemical-protective clothing.
Further information:
Keep containers cool by spraying with water if exposed to fire. Collect contaminated extinguishing water separately, do not allow to reach sewage or effluent systems.
Accidental release measures
6.1. Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid contact with the skin, eyes and clothing. Avoid inhalation. Use personal protective clothing.
6.2. Environmental precautions
Do not discharge into drains/surface waters/groundwater. Contain contaminated water/firefighting water. Suppress gases/vapours/mists with water spray jet. Wet down dust with water spray jet.
6.3. Methods and material for containment and cleaning up
For small amounts: Sweep/shovel up. Dispose of absorbed material in accordance with regulations.
For large amounts: Sweep/shovel up. Dispose of absorbed material in accordance with regulations.
6.4. Reference to other sections
Information regarding exposure controls/personal protection and disposal considerations can be found in section 8 and 13.
Handling and storage
7.1. Precautions for safe handling
Avoid dust formation. Processing machines must be fitted with local exhaust ventilation. Breathing must be protected when large quantities are decanted without local exhaust ventilation.
Protection against fire and explosion:
The product is not capable of a dust explosion.
7.2. Conditions for safe storage, including any incompatibilities
Further information on storage conditions: Protect against moisture.
Protect from temperatures above: 80 °C
7.3. Specific end use(s)
For the relevant identified use(s) listed in Section 1 the advice mentioned in this section 7 is to be observed.
Conditions for safe storage, including any incompatibilities
Further information on storage conditions: Protect against moisture.
Protect from temperatures above: 80 °C
Specific end use(s)
For the relevant identified use(s) listed in Section 1 the advice mentioned in this section 7 is to be observed.
Transport information
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Marine transport (UN RTDG/IMDG)
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Exposure controls / personal protection
8.1. Control parameters
Components with occupational exposure limits
Recommended limit value.
hydroxylamine
Workplace guidance level 0.1 mg/m3 (Recommendation of BASF)
8.2. Exposure controls
Personal protective equipment
Respiratory protection:
Breathing protection if breathable aerosols/dust are formed. Particle filter with high efficiency for solid and liquid particles (e.g. EN 143 or 149, Type P3 or FFP3).
Hand protection:
Chemical resistant protective gloves (EN 374)
Suitable materials also with prolonged, direct contact (Recommended: Protective index 6, corresponding > 480 minutes of permeation time according to EN 374):
butyl rubber (butyl) - 0.7 mm coating thickness
chloroprene rubber (CR) - 0.5 mm coating thickness
Supplementary note: The specifications are based on tests, literature data and information of glove manufacturers or are derived from similar substances by analogy. Due to many conditions (e.g. temperature) it must be considered, that the practical usage of a chemical-protective glove in practice may be much shorter than the permeation time determined through testing.
Eye protection:
Tightly fitting safety goggles (splash goggles) (e.g. EN 166)
Body protection:
Body protection must be chosen depending on activity and possible exposure, e.g. apron, protecting boots, chemical-protection suit (according to EN 14605 in case of splashes or EN ISO 13982 in case of dust).
General safety and hygiene measures
Remove contaminated clothing immediately and dispose of safely. Handle in accordance with good industrial hygiene and safety practice.
Stability and reactivity
10.1. Reactivity
Corrosion to metals:
A metal corrosive effect is expected due to the pH value.
Reactions with water/air: Reaction with: air
Flammable gases: no
Toxic gases: no
Corrosive gases: no
Smoke or fog: no
Formation of flammable gases: Remarks: Forms no flammable gases in the presence of water.
10.2. Chemical stability
The product is stable if stored and handled as prescribed/indicated.
10.3. Possibility of hazardous reactions
Hazardous reactions in presence of mentioned substances to avoid.
10.4. Conditions to avoid
Avoid heat. Avoid dust formation.
10.5. Incompatible materials
Substances to avoid:
Alkalines, alkalies, oxidizing agents, metal salts, heavy metal salts, metal, nitrites, nitrates, sulfides
10.6. Hazardous decomposition products
Hazardous decomposition products:
sulphur dioxide, Sulphur trioxide, hydroxylamine...% [> 55 % in aqueous solution]
nitrogen oxides
Disposal considerations
13.1. Waste treatment methods
Must be disposed of or incinerated in accordance with local regulations.
Contaminated packaging:
Uncleaned empties should be disposed of in the same manner as the contents.
Contaminated packaging should be emptied as far as possible; then it can be passed on for recycling after being thoroughly cleaned.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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