SAFETY DATA SHEET - Airgas

1 Ethyl Mercaptanethyl mercaptan; EthanthiolSAFETY data SHEETGHS product identifierOther means of identification24-hour telephoneSection 1. Identification:::Chemical name:Ethyl MercaptanSupplier's details:Ethyl MercaptanProduct use:Synthetic/Analytical USA, LLC and its affiliates259 North Radnor-Chester RoadSuite 100 Radnor, PA 19087-52831-610-687-52531-866-734-3438 SDS #:001136 Synonym:ethyl mercaptan; EthanthiolSection 2. Hazards identificationFLAMMABLE LIQUIDS - Category 2 ACUTE TOXICITY (oral) - Category 4 ACUTE TOXICITY (inhalation) - Category 4 SERIOUS EYE DAMAGE/ EYE IRRITATION - Category 2 AAQUATIC HAZARD (ACUTE) - Category 1 AQUATIC HAZARD (LONG-TERM) - Category 1 Classification of the substance or mixture:Signal word:DangerHazard statements:Highly flammable liquid and form explosive mixtures in if swallowed or if serious eye toxic to aquatic life with long lasting pictograms:Precautionary statementsPrevention.

2 Wear protective gloves. Wear eye or face protection. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Use explosion-proof electrical, ventilating, lighting and all material-handling equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Keep container tightly closed. Use only outdoors or in a well-ventilated area. Avoid release to the environment. Avoid breathing vapor. Do not eat, drink or smoke when using this product. Wash hands thoroughly after :Collect spillage.

3 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER or physician if you feel unwell. IF SWALLOWED:Call a POISON CENTER or physician if you feel unwell. Rinse mouth. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical label elementsGeneral:Read label before use.

4 Keep out of reach of children. If medical advice is needed,have product container or label at status:This material is considered hazardous by the OSHA Hazard Communication Standard (29 CFR ).Date of issue/Date of revision:3/16/2017 Date of previous issue:No previous MercaptanSection 2. Hazards identificationStorage:Store in a well-ventilated place. Keep :Dispose of contents and container in accordance with all local, regional, national and international not otherwise classified:None 3. Composition/information on ingredientsEthyl Mercaptan10075-08-1 Ingredient nameCAS number%There are no additional ingredients present which, within the current knowledge of the supplier and in the concentrations applicable, are classified as hazardous to health or the environment and hence require reporting in this name:Ethyl MercaptanOther means of identification:ethyl mercaptan.

5 EthanthiolCAS number:75-08-1 Substance/mixtureProduct code:001136 CAS number/other identifiers: occupational exposure limits, if available, are listed in Section concentration shown as a range is to protect confidentiality or is due to batch out mouth with water. Remove dentures if any. Remove victim to fresh air and keep at rest in a position comfortable for breathing. If material has been swallowed and the exposed person is conscious, give small quantities of water to drink. Stop if the exposed person feels sick as vomiting may be dangerous.

6 Do not induce vomiting unless directed to do so by medical personnel. If vomiting occurs, the head should be kept low so that vomit does not enter the lungs. Get medical attention. If necessary,call a poison center or physician. Never give anything by mouth to an unconscious person. If unconscious, place in recovery position and get medical attention immediately. Maintain an open airway. Loosen tight clothing such as a collar, tie, belt or flush eyes with plenty of water, occasionally lifting the upper and lower eyelids.

7 Check for and remove any contact lenses. Continue to rinse for at least 10 minutes. Get medical contaminated skin with plenty of water. Remove contaminated clothing and shoes. Get medical attention if symptoms occur. Wash clothing before reuse. Clean shoes thoroughly before victim to fresh air and keep at rest in a position comfortable for breathing. If it is suspected that fumes are still present, the rescuer should wear an appropriate mask or self-contained breathing apparatus. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial respiration or oxygen by trained personnel.

8 It may be dangerous to the person providing aid to give mouth-to-mouth medical attention if adverse health effects persist or are severe. If necessary, call a poison center or physician. If unconscious, place in recovery position and get medical attention immediately. Maintain an open airway. Loosen tight clothing such as a collar,tie, belt or 4. First aid measuresEye contactSkin contactInhalationIngestion::::Descriptio n of necessary first aid measuresMost important symptoms/effects, acute and delayedCauses serious eye irritation.

9 :Eye contactPotential acute health effectsDate of issue/Date of revision:3/16/2017 Date of previous issue:No previous MercaptanSection 4. First aid measuresProtection of first-aiders:No action shall be taken involving any personal risk or without suitable training. If it is suspected that fumes are still present, the rescuer should wear an appropriate mask or self-contained breathing apparatus. It may be dangerous to the person providing aid to give mouth-to-mouth to physician:Treat symptomatically. Contact poison treatment specialist immediately if large quantities have been ingested or treatments:No specific :Harmful if if swallowed.

10 :IngestionSkin contact:No known significant effects or critical signs/symptomsSkin contactIngestionInhalationNo specific specific specific data .:::Eye contact:Adverse symptoms may include the following:, pain or irritation, watering, rednessSee toxicological information (Section 11)Indication of immediate medical attention and special treatment needed, if necessaryFrostbite:Try to warm up the frozen tissues and seek medical 5. Fire-fighting measuresPromptly isolate the scene by removing all persons from the vicinity of the incident if there is a fire.