Safety Data Sheet Material Name: TEB SDS ID: ADC23950 ()

SECTION 1: Identification

Product identifier Material Name TEB Synonyms TRIETHYL BORATE; BORIC ACID, TRIETHYL ESTER; BORON ETHOXIDE; BORON TRIETHOXIDE; TRIETHYOXYBORANE; TRIETHOXYBORON Chemical Family esters Product Use semiconductor manufacture Restrictions on Use None known. Details of the supplier of the safety data sheet Entegris, Inc.

129 Concord Road Building 2 Billerica, MA 01821 USA

Telephone Number: +1-952-556-4181 Telephone Number: +1-800-394-4083 (toll free within North America)

Supplier Entegris Singapore Pte. Ltd. 31 Kaki Bukit Road 3, Techlink, #06-08/11 Singapore 417818 Telephone: +65-6745-2422 Fax: +65-6745-4477

Emergency # 800-101-2201(CHEMTREC) 1-703-527-3887 (International)

E-mail: [email protected]

SECTION 2: Hazards identification

Singapore Standard SS 586-2:2014 Flammable Liquids - Category 2 Acute Toxicity - Oral - Category 4 Serious Eye Damage/Eye Irritation - Category 2 Specific Target Organ Toxicity - Single Exposure - Category 3 ( respiratory system ) Label elements Hazard symbols

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Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

Signal word Danger Hazard statements H225 Highly flammable liquid and vapor. H302 Harmful if swallowed. H319 Causes serious eye irritation. H335 May cause respiratory irritation. Precautionary statements Prevention P210 Keep away from heat/sparks/open flame/hot surfaces - No smoking. P233 Keep container tightly closed. P240 Ground/Bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting equipment. P243 Take precautionary measures against static discharge. P242 Use only non-sparking tools. P261 Avoid breathing vapor or mist. P264 Wash thoroughly after handling. P280 Wear protective gloves and eye/face protection. P271 Use only outdoors or in a well-ventilated area. P270 Do not eat, drink or smoke when using this product. Response P370+P378 In case of fire: Use appropriate media to extinguish. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P312 Call a POISON CENTER or doctor/physician if you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337+P313 If eye irritation persists: Get medical advice/attention. P301+P312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P330 Rinse mouth. Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed. P235 Keep cool. P405 Store locked up. Disposal P501 Dispose of contents/container in accordance with local/regional/national/international regulations. Other Hazards Which Do Not Result in Classification None

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Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

SECTION 3: Composition / information on ingredients

CAS Component Name Percent

150-46-9 TRIETHYL BORATE 100 Impurities and stabilizing additives contributing to the GHS Classification None

SECTION 4: First aid measures

Inhalation If adverse effects occur, remove to uncontaminated area. Give artificial respiration if not breathing. Get immediate medical attention. Skin contact Wash skin with soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical attention, if needed. Thoroughly clean and dry contaminated clothing and shoes before reuse. Eye contact Flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Then get immediate medical attention. Ingestion If swallowed, get medical attention. Rinse mouth. Most Important Symptoms/Effects Acute Harmful if swallowed, respiratory tract irritation, eye irritation Delayed No information on significant adverse effects. Indication of any immediate medical attention and special treatment needed Treat symptomatically and supportively.

SECTION 5: Firefighting measures

Flammable Properties Severe fire hazard. Vapor/air mixtures are explosive above flash point. The vapor is heavier than air. Vapors or gases may ignite at distant ignition sources and flash back. Suitable extinguishing media regular dry chemical, carbon dioxide, water spray, alcohol-resistant foam. Large fires: water spray or fog, alcohol-resistant foam Unsuitable Extinguishing Media high-pressure water streams Special Hazards Arising from the Chemical Severe fire hazard. Vapor/air mixtures are explosive above flash point. The vapor is heavier than air. Vapors or gases may ignite at distant ignition sources and flash back. Hazardous combustion products oxides of boron, oxides of carbon Fire Fighting Measures Move container from fire area if it can be done without risk. Cool containers with water spray until well after the fire is out. Stay away from the ends of tanks. For fires in cargo or storage area: Cool containers with water from unmanned hose holder or monitor nozzles until well after fire is out. If this is impossible then

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Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

take the following precautions: Keep unnecessary people away, isolate hazard area and deny entry. Let the fire burn. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tanks due to fire. For tank, rail car or tank truck, evacuation radius: 800 meters (1/2 mile). Do not attempt to extinguish fire unless flow of material can be stopped first. Flood with fine water spray. Do not scatter spilled material with high-pressure water streams. Apply water from a protected location or from a safe distance. Avoid inhalation of material or combustion by-products. Stay upwind and keep out of low areas. Special Protective Equipment and Precautions for Firefighters Wear full protective fire fighting gear including self contained breathing apparatus (SCBA) for protection against possible exposure.

SECTION 6: Accidental release measures

Personal precautions, protective equipment and emergency procedures Wear personal protective clothing and equipment. Environmental precautions Avoid release to the environment. Methods and Materials for Containment and Cleaning Up Avoid heat, flames, sparks and other sources of ignition. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if possible without personal risk. Reduce vapors with water spray. Small spills: Absorb with sand or other non-combustible material. Collect spilled material in appropriate container for disposal. Large spills: Dike for later disposal. Remove sources of ignition. Keep unnecessary people away, isolate hazard area and deny entry.

SECTION 7: Handling and storage

Precautions for safe handling Keep away from heat, sparks, open flame, and hot surfaces - No smoking. Keep container tightly closed. Ground/Bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharges. Avoid breathing vapor or mist. Wear suitable protective gloves and eye/face protection. Wash thoroughly after handling. Use only outdoors or in a well-ventilated area. Do not eat, drink or smoke when using this product. Conditions for safe storage, including any incompatibilities Store in a well-ventilated place. Keep container tightly closed. Keep cool. Store locked up. Store and handle in accordance with all current regulations and standards. Store in a cool, dry place. Store under an inert atmosphere. Avoid contact with water or moisture. Grounding and bonding required. Keep separated from incompatible substances. Incompatible Materials acids, bases, oxidizing materials

SECTION 8: Exposure controls/personal protection

Exposure Guidelines Component Exposure Limits Singapore and ACGIH have not developed exposure limits for any of this product's components. Biological limit value There are no biological limit values for any of this product's components. Engineering controls ______Page 4 of 10 Issue date: 2018-07-11 Revision 1.13 Print date: 2018-07-11

Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

Ventilation equipment should be explosion-resistant if explosive concentrations of material are present. Provide local exhaust ventilation system. Ensure compliance with applicable exposure limits. PERSONAL PROTECTIVE EQUIPMENT Eye/face protection Wear splash resistant safety goggles with a faceshield. Provide an emergency eye wash fountain and quick drench shower in the immediate work area. Protective Clothing Wear appropriate chemical resistant clothing. Glove Recommendations Wear appropriate chemical resistant gloves. Protective Materials neoprene, rubber Respiratory Protection Under conditions of frequent use or heavy exposure, respiratory protection may be needed. Respiratory protection is ranked in order from minimum to maximum. Consider warning properties before use. Any chemical cartridge respirator with organic vapor cartridge(s). Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s). Any air-purifying respirator with a full facepiece and an organic vapor canister. Any supplied-air respirator with a full facepiece that is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode. Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode.

SECTION 9: Physical and chemical properties

Appearance clear liquid Physical State liquid

Odor faint odor Color colorless Odor Threshold Not available pH Not available Melting Point -85 °C Boiling Point 117 - 120 °C Boiling Point Range Not available Freezing point Not available Evaporation Rate Not available Flammability (solid, gas) Not applicable Autoignition 11 °C Closed Not available Flash Point Temperature Cup Lower Explosive Not available Decomposition temperature Not available Limit

Upper Explosive Not available Vapor Pressure Not available Limit Vapor Density 5.04 Specific Gravity (water=1) 0.858 (air=1) Partition coefficient: n- Water Solubility (Decomposes ) Not available octanol/water Viscosity Not available Kinematic viscosity Not available

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Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

Solubility (Other) Not available Bulk Density 7.2 lb/gal moisture- Change in color Density 0.858 g/cm3 sensitive 100 % (by Physical Form Liquid Volatility volume ) Molecular Formula (C2-H5-O)3-B Molecular Weight 146.02 Solvent Solubility Soluble alcohol

SECTION 10: Stability and reactivity

Reactivity May decompose on contact with water or moist air. Chemical stability May decompose on contact with water or moist air. Possibility of hazardous reactions Will not polymerize. Conditions to avoid Avoid heat, flames, sparks and other sources of ignition. Containers may rupture or explode if exposed to heat. Keep out of water supplies and sewers. Avoid contact with water or moisture. Materials to Avoid (Incompatibilities) acids, bases, oxidizing materials Hazardous decomposition products Thermal decomposition products oxides of boron, oxides of carbon

SECTION 11: Toxicological information

Information on Likely Routes of Exposure Inhalation: irritation Skin contact irritation Eye contact irritation Ingestion Harmful if swallowed, irritation Component Analysis - LD50/LC50 The components of this material have been reviewed in various sources and no selected endpoints have been identified. Acute Toxicity Estimate Oral 500 mg/kg Immediate Effects Harmful if swallowed, respiratory tract irritation, eye irritation Delayed Effects ______Page 6 of 10 Issue date: 2018-07-11 Revision 1.13 Print date: 2018-07-11

Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

No information on significant adverse effects. Irritation/Corrosivity Data respiratory tract irritation, eye irritation Respiratory Sensitization No data available. Dermal Sensitization No data available. Carcinogenicity Component Carcinogenicity None of this product's components are listed by ACGIH, IARC, NTP, DFG or OSHA. Mutagenic Data No data available. Reproductive Effects Data No data available. Tumorigenic Data No data available. Specific Target Organ Toxicity - Single Exposure respiratory system Specific Target Organ Toxicity - Repeated Exposure No data available. Aspiration hazard No data available. Medical Conditions Aggravated by Exposure No data available.

SECTION 12: Ecological information

Component Analysis - Aquatic Toxicity No LOLI ecotoxicity data are available for this product's components. Abiotic degradation Hydrolyzes in water. Persistence This material is believed to persist in the environment. Bioaccumulative potential This material will not bioaccumulate. Mobility No data available. Other adverse effects No data available. Other Toxicity No data available.

SECTION 13: Disposal considerations

Disposal Methods Dispose in accordance with all applicable regulations. Component waste information There is no applicable waste information for this product's components. Contaminated packaging disposal Dispose in accordance with all applicable regulations. ______Page 7 of 10 Issue date: 2018-07-11 Revision 1.13 Print date: 2018-07-11

Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

SECTION 14: Transport information

IATA Information: Shipping Name: ETHYL BORATE Hazard Class: 3 UN#: UN1176 Packing Group: II Required Label(s): 3

ICAO Information: Shipping Name: ETHYL BORATE Hazard Class: 3 UN#: UN1176 Packing Group: II Required Label(s): 3

IMDG Information: Shipping Name: ETHYL BORATE Hazard Class: 3 UN#: UN1176 Packing Group: II Required Label(s): 3 International Bulk Chemical Code This material does not contain any chemicals required by the IBC Code to be identified as dangerous chemicals in bulk. Special precautions None

SECTION 15: Regulatory information

Singapore Regulations List of Hazardous Substances No information was found for the substance(s) on the List of Hazardous Substances. Poisons List No information was found for the substance(s) on the List of Hazardous Substances. Hazardous Substance Transport Quantities None of this product's components are on the list. Maritime and Port Authority This product contains no components identified on Singapore's Maritime and Port Authority - Dangerous Goods. Arms and Explosives Act None of this product's components are on the list. Schedule of Chemical Weapons None of this product's components are on the list. Misuse of Drugs Act None of this product's components are on the list. Petroleum and Flammable Materials TRIETHYL BORATE 150-46-9 ______Page 8 of 10 Issue date: 2018-07-11 Revision 1.13 Print date: 2018-07-11

Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

Hazard Classes 3

TRIETHYL BORATE 150-46-9

Regulated Products SCDTRB2416L1 Strategic Goods Control This product contains no components identified on Singapore's Strategic Goods Control. Toxic Industrial Wastes This product contains no components identified on Singapore's Toxic Industrial Wastes. Component Analysis - Inventory TRIETHYL BORATE (150-46-9) KR KR JP - JP - KECI KECI KR - VN A N M T US CA EU PH ENC ISH - - REAC CN (Draft U Z X W S L Anne Anne H CCA ) x 1 x 2

Ye DS EI Ye Ye Ye N Ye Yes Yes No Yes No No Yes s L N s s s o s

SECTION 16: Other information

NFPA Ratings Health: 2 Fire: 3 Reactivity: 1 Hazard Scale: 0 = Minimal 1 = Slight 2 = Moderate 3 = Serious 4 = Severe Summary of Changes 7/10/2018 - Update to Section(s) 2, 4, 7, 9, 11. Preparation and Revision Date 3/26/2012 Revision date 7/10/2018 Key / Legend ACGIH - American Conference of Governmental Industrial Hygienists; ADR - European Road Transport; AU - Australia; BOD - Biochemical Oxygen Demand; C - Celsius; CA - Canada; CA/MA/MN/NJ/PA - California/Massachusetts/Minnesota/New Jersey/Pennsylvania*; CAS - Chemical Abstracts Service; CERCLA - Comprehensive Environmental Response, Compensation, and Liability Act; CFR - Code of Federal Regulations (US); CLP - Classification, Labelling, and Packaging; CN - ; CPR - Controlled Products Regulations; DFG - Deutsche Forschungsgemeinschaft; DOT - Department of Transportation; DSD - Dangerous Substance Directive; DSL - Domestic Substances List; EC – European Commission; EEC - European Economic Community; EIN - European Inventory of (Existing Commercial Chemical Substances); EINECS - European Inventory of Existing Commercial Chemical Substances; ENCS - Existing and New Chemical Substance Inventory; EPA - Environmental Protection Agency; EU - European Union; F - Fahrenheit; F - Background (for Venezuela Biological Exposure Indices); IARC - International Agency for Research on Cancer; IATA - International Air Transport Association; ICAO - International Civil Aviation Organization; IDL - Ingredient Disclosure List; IDLH - Immediately Dangerous to Life and Health; IMDG - International Maritime Dangerous Goods; ISHL - Japan Industrial Safety and Health Law; IUCLID - International Uniform Chemical Information Database; JP - Japan; Kow - Octanol/water partition ______Page 9 of 10 Issue date: 2018-07-11 Revision 1.13 Print date: 2018-07-11

Safety Data Sheet Material Name: TEB SDS ID: ADC23950 (SINGAPORE)

coefficient; KR KECI Annex 1 - Korea Existing Chemicals Inventory (KECI) / Korea Existing Chemicals List (KECL); KR KECI Annex 2 - Korea Existing Chemicals Inventory (KECI) / Korea Existing Chemicals List (KECL) , KR - Korea; LD50/LC50 - Lethal Dose/ Lethal Concentration; LEL - Lower Explosive Limit; LLV - Level Limit Value; LOLI - List Of LIsts™ - ChemADVISOR’s Regulatory Database; MAK - Maximum Concentration Value in the Workplace; MEL - Maximum Exposure Limits; MX – Mexico; Ne- Non-specific; NFPA - National Fire Protection Agency; NIOSH - National Institute for Occupational Safety and Health; NJTSR - New Jersey Trade Secret Registry; Nq - Non-quantitative; NSL – Non-Domestic Substance List (Canada); NTP - National Toxicology Program; NZ - New Zealand; OSHA - Occupational Safety and Health Administration; PEL- Permissible Exposure Limit; PH - Philippines; RCRA - Resource Conservation and Recovery Act; REACH- Registration, Evaluation, Authorisation, and restriction of Chemicals; RID - European Rail Transport; SARA - Superfund Amendments and Reauthorization Act; Sc - Semi-quantitative; STEL - Short-term Exposure Limit; TCCA – Korea Toxic Chemicals Control Act; TDG - Transportation of Dangerous Goods; TLV - Threshold Limit Value; TSCA - Toxic Substances Control Act; TW – ; TWA - Time Weighted Average; UEL - Upper Explosive Limit; UN/NA - United Nations /North American; US - United States; VLE - Exposure Limit Value (Mexico); VN (Draft) - Vietnam (Draft); WHMIS - Workplace Hazardous Materials Information System (Canada). Other Information Disclaimer: The information in this (Material) Safety Data Sheet ("(M)SDS") is believed to be current and accurate as of the time of shipment of the product by Entegris. Entegris makes no warranties, express or implied, with respect to such information, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. Entegris assumes no liability for any loss or injury which may result from the use of the information contained in this (M)SDS. The chemical, physical and toxicological properties of the Entegris product described in this (M)SDS have not been thoroughly investigated. Users are responsible for exercising due care in using the Entegris product, and for conducting their own investigation to determine whether the product is fit for their particular purpose and suitable for their method of use or application. It is the user's responsibility to ensure that its activities comply with all applicable laws and regulations. Entegris is a registered trademark of Entegris Inc. or an affiliated company. © 2015 Entegris Inc. or affiliated company. All rights reserved.

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