Registration Dossier
Registration Dossier
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EC number: 225-969-9 | CAS number: 5188-07-8
Guidance on Safe Use
Administrative data
First-aid measures
General advice: Under the shower: Take off immediately all contaminated clothing. including shoes.
Inhalation of vapours due to decomposition of product: Move to fresh air. Oxygen or artificial respiration if needed. Hospitalize immediately.
Skin contact: Wash immediately, abundantly and thoroughly with water. Consult a doctor quickly. In case of extensive burns, hospitalize.
Eye contact: Wash open eyes immediately, abundantly and thoroughly for at least 15 minutes. Consult an ophthalmologist immediately.
Ingestion: Do not induce vomiting, rinse mouth and lips with plenty of water if the subject is conscious, then hospitalize.
Fire-fighting measures
Suitable extinguishing media: Foam, Dry powder, Carbon dioxide (CO2)
Unsuitable extinguishing media: Water
Specific hazards: Flammable liquid,
Thermal decomposition giving flammable and toxic products, Methylmercaptan, Carbon oxides, Sulphur oxides
Specific methods: Cool containers / tanks with water spray. Prohibit all sources of sparks and ignition - Do not smoke.
Special protective actions for fire-fighters: Wear self-contained breathing apparatus and protective suit.
Fire fighting equipment should be thoroughly decontaminated after use.
Accidental release measures
Personal precautions, protective equipment and emergency procedures:
Evacuate non-essential staff and those not equipped with individual protection apparatus. Prohibit all sources of sparks and ignition - Do not smoke. Prohibit contact with skin and eyes and inhalation of vapours. Use personal protective equipment. In case of insufficient ventilation, wear suitable respiratory equipment.
Environmental precautions:
Do not release into the environment. Do not let product enter drains. Dam up with sand or inert earth (do not use combustible materials).
Methods and materials for containment and cleaning up:
Recovery: Pump into a labelled inert emergency tank. Flush area with water
Neutralisation: Neutralize carefully with a dilute caustic soda solution.
Elimination: Destroy the product by incineration (in accordance with local and national regulations).
Handling and storage
Technical measures/Precautions:
Storage and handling precautions applicable to products: Liquid. Flammable. CORROSIVE. Provide appropriate exhaust ventilation at machinery. Provide showers, eye-baths. Provide water supplies near the point of use. Provide self-contained breathing apparatus nearby. Well ventilate empty vats and tanks before entering.
Safe handling advice:
Keep well away from naked flames. Prohibit all sources of sparks and ignition - Do not smoke. Use product only in closed system. Open drum carefully as content may be under pressure.
Hygiene measures:
Prohibit contact with skin and eyes and inhalation of vapours. Remove and wash contaminated clothing before re-use.
When using do not eat, drink or smoke.
Wash hands after handling. Remove contaminated clothing and protective equipment before entering eating areas.
Conditions for safe storage, including any incompatibilities:
Keep tightly closed in a dry, cool and well-ventilated place. Store away from heat and ignition sources. Provide a catch-tank in a bunded area.
Provide an anti-corrosion protected electrical equipment in a bunded area. Provide electrical earthing of equipment and electrical equipment
usable in explosive atmospheres.
Do not store above: 40 °C
Incompatible products:
Acids, Strong oxidizing agents
Packaging material:
Recommended: Stainless steel, Joints : butyl rubber, polytetrafluoroethylene (PTFE)
To be avoided: Copper and copper alloys
Specific use(s) (End Use): part of the substance/product is used as intermediate under strictly controlled conditions as defined in Article 18(4) of Regulation (EC) No. 1907/2006 (REACH Regulation) and must therefore be handled as such.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- Solid : 2921
Liquid : 2920
Shipping information
- Proper shipping name and description:
- Corrosive solid, flammable, n.o.s. or
CORROSIVE LIQUID, FLAMMABLE, N.O.S. - Chemical name:
- (Sodium methylmercaptide)
- Language:
- English
- Labels:
- Solid : 8 (4.1)
Liquid : 8(3)
SpecialProvisionsopen allclose all
Inland waterway transport (UN RTDG/ADN(R))
- UN number:
- Solid : 2921
Liquid : 2920
Shipping information
- Proper shipping name and description:
- Corrosive solid, flammable, n.o.s. or
CORROSIVE LIQUID, FLAMMABLE, N.O.S. - Chemical name:
- (Sodium methylmercaptide)
- Language:
- English
- Labels:
- Solid : 8 (4.1)
Liquid : 8(3)
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
- UN number:
- Solid : 2921
Liquid : 2920
Shipping information
- Proper shipping name and description:
- Corrosive solid, flammable, n.o.s. or
CORROSIVE LIQUID, FLAMMABLE, N.O.S. - Chemical name:
- (Sodium methylmercaptide)
- Labels:
- Solid : 8 (4.1)
Liquid : 8(3)
Remarksopen allclose all
Air transport (UN RTDG/ICAO/IATA)
- UN number:
- Solid : 2921
Liquid : 2920
Shipping information
- Proper shipping name and description:
- Corrosive solid, flammable, n.o.s. or
CORROSIVE LIQUID, FLAMMABLE, N.O.S. - Chemical name:
- (Sodium methylmercaptide)
- Labels:
- Solid : 8 (4.1)
Liquid : 8(3)
Remarksopen allclose all
SpecialProvisionsopen allclose all
Exposure controls / personal protection
CONTROL PARAMETERS:
Products of decomposition:
Methanethiol
Source Date Value type Value (ppm)
INRS 01 2008 VME 0.5
ACGIH (US) 2007 TWA 0,5
EXPOSURE CONTROLS:
Site documentation to support safe handling arrangements including the selection of engineering, administrative and personal protective equipment controls in accordance with risk-based management systems must be available at each Manufacturing/using site
General protective measures: Use high inegrity methods of material loading and unloading. Investigate engineering techniques to reduce exposures.
Ensure sufficient air exchange and/or exhaust in work areas. Routine monitoring and inspection for leaks to reduce fugitive emissions.
Personal protective equipment:
Respiratory protection:
Where airborne exposure is likely wear suitable respiratory equipment. If potential for significant exposure : Self contained Breathing Apparatus
Hand protection: Neoprene gloves
Eye/face protection: Safety glasses, Face-shield
Skin and body protection: Combination with delayed penetration
Environmental exposure controls : Do not release into the environment. In case of waste wate, use etchniques to minimize the emissions : incineration or any treatment to minimize the level of release (ex WWTP).
Stability and reactivity
Reactivity & Stability: This material is chemically stable under normal and anticipated storage and handling conditions.
Keep pH alkaline (slight excess of : Sodium hydroxide 1 - 2%) , pH>=14
Conditions to avoid: Keep away from heat and sources of ignition. To avoid thermal decomposition, do not overheat.
Materials to avoid: Acids ( Formation of Methylmercaptan)
Strong oxidizing agents such as Hydrogen peroxide, Nitric acid, Hypochlorites (Release of sulphur dioxide)
Thermal decomposition:
Decomposition temperature: 210 °C
Hazardous decomposition products:
Possible decomposition products in case of hydrolysis are: Methylmercaptan
Thermal decomposition giving flammable and toxic products : Methylmercaptan, Sulphur oxides, Carbon oxides
Disposal considerations
Disposal of product: Destroy the product by incineration (in accordance with local and national regulations).
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
