Trimethyl Borate or Methyl Borate or Boric Acid Trimethyl Ester SDS Safety Data Sheet of Supplier Exporter Manufacturers' Representative
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Toll Free: 1-855-55-AMMOLTrimethyl Borate or Methyl Borate or Boric Acid Trimethyl Ester
CAS Number: 121-43-7
Molecular Formula: (CH3O)3B
Molecular Weight: 103.91
Trimethyl Borate or Methyl Borate or Boric Acid Trimethyl EsterTrimethyl Borate or Methyl Borate or Boric Acid Trimethyl Ester
SDS GHS, Safety Data Sheet
MSDS Sheet, Material Safety Data Sheet 27-Dec-241. Product Identification
Product Name & Other Names: Trimethyl Borate or Methyl Borate or Boric Acid Trimethyl Ester.
CAS No.: 121-43-7
EINECS EC No.: 204-468-9
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Hazard Class and Category Code(s), Regulation (EC) No 1272/2008 (CLP):Flammable liquids (Category 2) H225
Acute toxicity, Oral (Category 3) H301
Acute toxicity, Dermal (Category 3) H311
Acute toxicity, Inhalation (Category 3) H331
Eye irritation (Category 2), H319
Reproductive toxicity (Category 1B), H360
Specific target organ toxicity - single exposure (Category 1) Eyes, H370Labeling according to Regulation (EC) No 1272/2008
GHS Label Elements
ToxicGHS Label Elements
FlammableGHS Label Elements
Health HazardSignal Words: Danger
Hazard statements:
H225: Highly flammable liquid and vapor.
H301+H311+H331: Toxic if swallowed, in contact with skin or if inhaled.
H319: Causes serious eye irritation.
H360: May damage fertility. May damage the unborn child.
H370: Causes damage to organs.Precautionary statements:
P210: Keep away from heat/sparks/open flames/hot surfaces – No smoking.
P240: Ground/bond container and receiving equipment.
P241: Use explosion-proof electrical/ventilating/light/…/equipment.
P242: Use only non-sparking tools.
P243: Take precautionary measures against static discharge.
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P270: Do not eat, drink or smoke when using this product.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P330: Rinse mouth.
P301+310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P302+352: IF ON SKIN: Wash with soap and water.
P304+340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing.
P370+378: In case of fire: Use water spray or fog for extinction.
P403+233+235: Store in a well-ventilated place. Keep container tightly closed. Keep cool.
P405: Store locked up.
P501: Dispose of contents/container to authorized agents only.2. Composition/Information on Ingredients
Product Name & Other Names: Trimethyl Borate or Methyl Borate or Boric Acid Trimethyl Ester.
CAS No.: 121-43-7
EINECS EC No.: 204-468-94. First Aid Measures
Always seek medical attention after first aid measures are provided.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.
Note to Physician: Treat symptomatically.5. Fire Fighting Measures
Flammability of the Product: Flammable.
Auto-Ignition Temperature: 305C.
Flash Points: -11C.
Products of Combustion: Carbon dioxide, Carbon monoxide and fumes.
Explosion: Explosive in presence of heat.
Fire Extinguishing Media: Use water spray, dry powder, alcohol resistant foam, carbon dioxide. Flammable liquid and vapor. Do not use a solid (straight) water stream as it may scatter and spread fire. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas. Avoid a solid water jet on the container to prevent any splashing of the product which could cause spreading of the fire. Cool containing vessels with water spray to prevent pressure build-up, auto-ignition, or explosion.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures it may produce toxic or irritating fumes. Use water spray to cool unopened containers.6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment cleanup procedures and Storage:
Small Spill: Avoid mist formation. Avoid breathing mist. Ensure adequate ventilation. Use appropriate tools to put the spilled solid in a convenient waste disposal container.
Large Spill: Remove all sources of ignition. Provide proper ventilation. Absorb the material on a porous, inert material such as earth, sand, or vermiculite. Carefully sweep up or swab the material without causing dust/mist. Dispose of it in accordance with local regulations.
Large liquid spillages should be contained by use of sand or another inert material. The spillage should be transferred to a suitable container and recovered or disposed of in accordance with local regulations.7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Do not ingest. Do not breathe dust, vapors, or mist. Work under hood. Ensure proper ventilation. Provide appropriate exhaust ventilation at places where dust/mist is formed. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Do not leave the material container open. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like oxidizing agents, alkali metals, acids, and halogens.8. Exposure Controls/Personal Protection
Airborne Exposure Limits: Not available.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator may be worn.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full-face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Handle in accordance with good industrial hygiene and safety practice.9. Physical and Chemical Properties
Appearance: Colourless liquid.
Odor: Odorless.
Odor threshold: Not applicable.
pH: No information found.
Relative density: about 0.92
Boiling Point: 67C to 69C.
Melting Point: -34C.
Flash Point: −11C
Auto-ignition Temperature: 305C.
Decomposition temperature: No information found.
Upper/lower flammability or explosive limits: No information found.
Vapor pressure: No information found.
Vapor density: No information found.
Evaporation rate: No information found.
Flammability (solid, gas): No information found.
Partition coefficient: n-octanol/water: No information found.
Solubility: No information found.
Viscosity: No information found.10. Stability and Reactivity
Stability: Stable under ordinary conditions of use and storage. Violent to explosive reaction with alkali metal powders and with (strong) oxidizers. Violent exothermic reaction with (some) acids and with (some) halogens compounds.
Hazardous Decomposition Products: It emits Carbon dioxide, Carbon monoxide and fumes.
Hazardous Polymerization: Will ordinarily not occur.
Incompatibilities: Oxidizing agents, alkali metals, acids, and halogens.
Conditions to Avoid: Exposure to moisture Exposure to air. Heat, flames, and sparks. Extremes of temperature and direct sunlight. Avoid moisture.11. Toxicological Information
Toxic if inhaled or swallowed. Irritating to eyes & skin. Causes burns and damage.
Toxicity data
LDLo Oral - Estimate – 100.1 mg/kg.
LC50 Inhalation - Estimate - 4 h - 3,1 mg/l – vapor.
LD50 Dermal - Estimate – 300.1 mg/kg.
Carcinogenicity: Not a carcinogen as per IARC, ACGIH, OSHA and NTP.
Epidemiology: No information found.
Teratogenicity: No information found.
Reproductive Effects: May damage fertility. May damage the unborn child.
Mutagenicity: No information found.
Neurotoxicity: No information found.
Causes damage to organs.12. Ecological Information
Environmental Toxicity: No information found.
Toxicity of the Products of Biodegradation: No information found.
Persistence and Degradability: No information found.
Mobility: No information found.
Bioaccumulation/ Accumulation: No information found.
Results of PBT and vPvB assessment: No information found.13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Follow all the pollution control rules.
14. Transport Information
DOT USA, TDG Canada & ADR/RID Europe:
UN Number: UN 2416, Hazard Class: 3, Packing Group: II
Shipping Name: Trimethyl borate.
IATA & IMDG/IMO:
UN Number: UN 2416, Hazard Class: 3, Packing Group: II
Shipping Name: Trimethyl borate.15. Regulatory Information
USA:
SARA 311/312 Hazards: See section 2.16. Other Information
Disclaimer:
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Our company provides this MSDS sheet in good faith but makes no representation as to its comprehensiveness or accuracy. This SDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. The above information has been compiled from various sources and has the possibility of discrepancy and being out-dated information. Individuals receiving the information must exercise their independent judgment and do further search in determining its appropriateness for a particular purpose. In no case shall our company be liable to loss or damages by the product user.
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19 April, 2025