Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide

Guidance on Safe Use

First-aid measures

General notes: As a general rule, in case of doubt or if symptoms persist, always call a doctor. Never give anything by mouth to an unconscious person. If unconscious, place in recovery position and seek medical advice.

First aid personnel: pay attention to self-protection.  

Following inhalation: Remove victim to fresh air and keep at rest in a position comfortable and well-ventilated for breathing. In case of irritation of respiratory system or mucous membranes and/or indisposition and/or prolonged exposure, seek medical attention.

Following skin contact: Wash thoroughly with soap and water. In case of dermatitis, seek medical attention.

Following eye contact: Check for and remove any contact lenses. Immediately flush eyes with running clean water for at least 15 minutes, keeping eyelids open.

Following ingestion: Rinse mouth thoroughly with water. In case of spontaneous vomiting be sure that vomitus can freely drain due of danger of suffocation. Give water repeatedly. If vomiting occurs, keep head lower than hips to help prevent aspiration. Do not induce vomiting/risk of damage to lungs exceeds poisoning risk. Give nothing by mouth in cases of unconsciousness or convulsion. Get medical attention immediately and show the container or label.

Self-protection of the first aider: No action shall be taken involving any personal risk or without suitable training.

Most important symptoms and effects, both acute and delayed: Symptoms and effects: The most important known symptoms and effects are described in labelling and under toxicological information.

Indication of any immediate medical attention and special treatment needed: Notes for the doctor: Treat symptomatically and supportively. Special treatment: No known specific antidote.

Fire-fighting measures

Extinguishing media

Suitable extinguishing media: Dry powder, foam

Unsuitable extinguishing media: Carbon dioxide

Special hazards arising from the substance or mixture: Phosphorus oxides, harmful vapours. Evolution of fumes/fog. The substances/groups of substances mentioned can be released in case of fire.

Hazard decomposition products: Oxides of carbon; oxides of phosphorus; toxic gases/vapours.

Advice for fire-fighters: Wear full protective clothing. Wear self-contained breathing apparatus.

Additional information: Avoid whirling up the material/product because of the danger of dust explosion. Dusty conditions may ignite explosively in the presence of an ignition source causing flash fire.

Do not enter fire area without proper protection. Fight fire from safe distance/protected location. Move container from fire area if you can do it without risk. Do not scatter spilled material with high-pressure water streams. Use agents suitable for type of surrounding fire. Avoid breathing hazardous vapours, keep upwind.

Prevent fire-fighting water from entering surface water or groundwater. Contaminated water from fire hoses or sprinkler etc must be prevented from draining into watercourses, sewers or the ground water. Sufficient measures must be taken to retain water used for extinguishing. Contaminated water and soil must be disposed of in conformity with local regulations.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

For non-emergency personnel: The wearing of suitable protective equipment (including personal protective equipment referred to under section 8 of eSDS) to prevent any contamination of skin, eyes and personal clothing; removal of ignition sources, provision of sufficient ventilation, avoid formation of dust; emergency procedures such as the need to evacuate the danger area or to consult an expert.

For emergency responders: Avoid dust formation. Personal protective equipment: Put on appropriate personal protective equipment.

Environmental precautions: Contain contaminated water/fire-fighting water. Do not flush into surface water, sanitary sewer or ground water system. Discharge into the environment must be avoided.

Methods and material for containment and cleaning up

For containment: Avoid raising dust. Shut off all sources of ignition. Wearing appropriate personal protective equipment, carefully sweep up material and place in suitable labelled, tightly sealed containers for disposal.

For cleaning up: Avoid raising dust.

For small amount: pick up with suitable appliance and dispose of.

For large amounts: contain with dust binding material and dispose of.

Handling and storage

Precautions for safe handling

Protective measures:

Advice on safe handling:

In accordance with good industrial practice, industrial hygiene principles and relevant legal provisions, handle with care and avoid unnecessary personal contact. Containers of this chemical may be hazardous when empty since they retain product residues (dust, solid); observe all warnings and precautions listed for the product. Keep away from ignition sources.  Breathing must be protected when large quantities are decanted without local exhaust ventilation. Wear appropriate personal protective equipment.

Fire and explosion hazard:

This substance is not expected to present an explosion hazard during normal transportation and storage operations. However, when dispersed in air and subject to sufficient energy of ignition, it may pose a dust explosion hazard. Minimize the energy of ignition, it may pose a dust explosion hazard. Minimize the potential for dust explosion by eliminating/ controlling ignition sources (bond and ground), and by using good housekeeping practices during storage, transfer, handling and use to avoid excessive dust accumulation. Protection against fire and explosion: avoid dust formation. Take precautionary measures against static discharges.

Conditions and materials to avoid:

Direct sunlight, excessive light, moisture, oxidizing conditions, excessively high temperatures, sparks and open flame, dusty conditions.

Measures to prevent aerosol and dust generation:

Ensure good ventilation/local exhaust at the workplace. Closed containers should only be opened in well-ventilated areas. Avoid creating dusty conditions.

Measures to protect the environment:

Avoid releasing to the environment. Do not flush into surface water, sanitary sewer or ground water system. Discharge into the environment must be avoided.

Advice on general occupational hygiene: Do not eat, drink and smoke in work areas; wash hands after use and remove contaminated clothing and protective equipment before entering eating areas.

Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry, cool and well-ventilated place against strong oxidizers when not in use and during transport, prevent contamination with foreign materials. Keep chemical away from direct sunlight, heat, sparks, open flame and other ignition sources. Keep away from food and drink. Store in the original container securely closed. Protect from moisture and physical damage.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

Not applicable

Shipping

Labels:

Not applicable

SpecialProvisions

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

UN number:

Not applicable

Shipping

Labels:

Not applicable

Remarks

Marine transport (UN RTDG/IMDG)

UN number:

Not applicable

Shipping information

Proper shipping name and description:

Not applicable

Labels:

Not applicable

Remarks

Air transport (UN RTDG/ICAO/IATA)

UN number:

Not applicable

Shipping information

Proper shipping name and description:

Not applicable

Labels:

Not applicable

Remarks

Additional transport information

Additional information

Special provisions / remarks / other:

Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code: Not applicable.

Exposure controls / personal protection

Exposure controls:

Appropriate engineering controls: Work in well ventilated areas. Local exhaust ventilation is generally required because it can control the emissions of the contaminant and its source, preventing dispersion of it into the general work area. Use mechanical ventilation for general area control. Refrigerant concentration monitors may be necessary to determine vapour concentration in work areas prior to use torches or other open flames, or if employees are entering enclosed areas.

General safety and hygiene measures:

Handle in accordance with good industrial hygiene and safety practice.

Precautionary measures:

Do not handle this chemical near heat, sparks or open flame. Prevent electrostatic discharge formation. Avoid accumulation of dust in enclosed space. Keep container closed when not in use. Avoid contact with eyes, skin and clothing. Do not breathe dust. Use only with adequate ventilation/personal protection. Before using this substance as such or mixtures containing, read SDS.

Hygiene measures:

Wash hands, forearms and face thoroughly after handling this substance or mixtures containing the substance, before eating, smoking and using the lavatory and at the end of the working period. Appropriate techniques should be used to remove potentially contaminated clothing. Wash contaminated clothing before reusing. Do not eat, drink or smoke while working. Keep away from foodstuffs, beverages and food. During synthesis,  formulation or application, follow good industrial hygiene practice. Emergency eye wash fountains and safety showers should be available in the immediate vicinity of any potential exposure.

Eye/face protection: Safety glasses with side-shields, e.g.

Eye protection to EN 166, designed to protect against powders and dusts;

Eye protection to EN 166, designed to protect against liquid splashes.

Skin protection:

Hand protection: Chemical resistant protective glove, such as Butyl rubber gloves conforming to EN 374, with thickness of > 0.77 mm. Gloves should be worn at all times when handling substance and/or mixtures containing the substance. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove’s outer surface) to avoid skin contact with this chemical. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The glove material has to be impermeable and resistant to the substance or/and mixtures containing the substance.

Body protection: Impermeable protective work clothing, closed footwear.

Other skin protection: Protective working clothes, closed footwear.

The skin protection equipments should be cleaned thoroughly after each use.

Respiratory protection: Wear a NIOSH-certified (or equivalent) organic vapour/particulate respirator, e.g. half-mask respirator or full-face respirator to EN 529.  In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use respiratory protective device that is independent of circulating air.

Thermal hazards: No specific information.

Environmental exposure control: The substance may cause long lasting harmful effects to aquatic life. Do not allow the substance or mixtures containing the substance or  contaminated containers to enter drains, sewers or water courses. Discharge into the environment must be avoided.

Stability and reactivity

Reactivity: No specific information.

Chemical stability: Stable under ordinary conditions of use and storage. Heat will contribute to instability.

Possibility of hazardous reactions: Dust explosion hazard.

Conditions to avoid: Avoid heat, ignition sources and incompatibilities. Avoid static discharges.

Incompatible materials: Strong acids, strong bases and strong oxidising agents.

Hazardous decomposition products: No hazardous decomposition products if stored and handled as prescribed/ indicated. Thermal decomposition and burning may produce carbon oxides, oxides of phosphorus and other toxic gases and vapours.

Disposal considerations

Waste treatment methods: Waste disposal of substance: must be disposed of or incinerated in accordance with local and national regulations.  

Product/Packaging disposal: Contaminated packaging material should be treated equivalent to residual chemical. Uncontaminated packaging can be re-used. Clean packaging material should be subjected to waste management schemes (recovery, recycling, reuse) according to local and national regulations.

Waste treatment-relevant information: Residual chemical should be disposed by incineration or by other modes of disposal in compliance with local and national regulations.

Sewage disposal-relevant information: No specific information.

Other disposal recommendations: No specific information.