SAFETY DATA SHEET - Airgas

1 Hydrogen Fluorideanhydrous hydrofluoric acid ; hf-a; hydrofluoric data SHEETGHS product identifierOther means of identificationProduct typeSection 1. Identification:::Chemical name: hydrofluoric acidSupplier's details:Hydrogen FluorideProduct use:Synthetic/Analytical :anhydrous hydrofluoric acid ; hf-a; hydrofluoric acidSDS #:001077 Airgas USA, LLC and its affiliates259 North Radnor-Chester RoadSuite 100 Radnor, PA 19087-52831-610-687-52531-866-734-3438:2 4-hour telephoneSection 2. Hazards identificationGASES UNDER PRESSURE - Liquefied gasACUTE TOXICITY (inhalation) - Category 3 SKIN CORROSION - Category 1 SERIOUS EYE DAMAGE - Category 1 SPECIFIC TARGET ORGAN TOXICITY (SINGLE EXPOSURE) - Category 1 Classification of the substance or mixture:Signal word:DangerHazard statements:Contains gas under pressure; may explode if if severe skin burns and eye to the respiratory pictograms:Precautionary statementsPrevention:Wear protective gloves.

2 Wear eye or face protection. Wear protective clothing. Use only outdoors or in a well-ventilated area. Do not breathe gas. Do not eat, drink or smoke when using this product. Wash hands thoroughly after :IF exposed: Call a POISON CENTER or physician. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER or physician. IF SWALLOWED: Immediately call a POISON CENTER or mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.

3 Wash contaminated clothing before reuse. Immediately call a POISON CENTER or physician. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy GHS label elementsGeneral:Read and follow all SAFETY data Sheets (SDS S) before use. Read label before out of reach of children. If medical advice is needed, have product container or label at hand. Close valve after each use and when empty. Use equipment rated for cylinder pressure. Do not open valve until connected to equipment prepared for a back flow preventative device in the piping.

4 Use only equipment of compatible materials of construction. Always keep container in upright status:This material is considered hazardous by the OSHA Hazard Communication Standard (29 CFR ).Date of issue/Date of revision:11/7/2018 Date of previous issue:11/7/2018 FluorideSection 2. Hazards identificationto do. Continue rinsing. Immediately call a POISON CENTER or :Store locked up. Protect from sunlight. Store in a well-ventilated :Dispose of contents and container in accordance with all local, regional, national and international not otherwise classified:In addition to any other important health or physical hazards, this product may displace oxygen and cause rapid 3.

5 Composition/information on ingredientshydrogen fluoride1007664-39-3 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: hydrofluoric acidOther means of identification:anhydrous hydrofluoric acid ; hf-a; hydrofluoric acidCAS number:7664-39-3 Substance/mixtureCAS 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 code:001077As this product is a gas, refer to the inhalation medical attention immediately.

6 Call a poison center or physician. Immediately flush eyes with plenty of water, occasionally lifting the upper and lower eyelids. Check for and remove any contact lenses. Continue to rinse for at least 10 minutes. Chemical burns must be treated promptly by a medical attention immediately. Call a poison center or physician. Flush contaminated skin with plenty of water. Remove contaminated clothing and contaminated clothing thoroughly with water before removing it, or wear to rinse for at least 10 minutes. Chemical burns must be treated promptly by a physician.

7 Wash clothing before reuse. Clean shoes thoroughly before medical attention immediately. Call a poison center or physician. Remove 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. It may be dangerous to the person providing aid to give mouth-to-mouth resuscitation.

8 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 delayedInhalation:Toxic if this product is a gas, refer to the inhalation section.:IngestionSkin contact:Causes severe serious eye damage.:Eye contactOver-exposure signs/symptomsPotential acute health effectsFrostbite:Try to warm up the frozen tissues and seek medical of issue/Date of revision:11/7/2018 Date of previous issue:11/7/2018 FluorideSection 4.

9 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 resuscitation. Wash contaminated clothing thoroughly with water before removing it, or wear to physician:Treat symptomatically. Contact poison treatment specialist immediately if large quantities have been ingested or treatments:No specific contactIngestionInhalationNo specific symptoms may include the following:, stomach painsAdverse symptoms may include the following:, pain or irritation, redness, blistering may occur:::Eye contact:Adverse symptoms may include the following:, pain, watering, rednessSee toxicological information (Section 11)Indication of immediate medical attention and special treatment needed, if necessarySection 5.

10 Fire-fighting measuresPromptly isolate the scene by removing all persons from the vicinity of the incident if there is a fire. No action shall be taken involving any personal risk or without suitable training. Contact supplier immediately for specialist advice. Move containers from fire area if this can be done without risk. Use water spray to keep fire-exposed containers thermal decomposition productsSpecific hazards arising from the chemicalDecomposition products may include the following materials:halogenated compoundsContains gas under pressure. In a fire or if heated, a pressure increase will occur and the container may burst or should wear appropriate protective equipment and self-contained breathing apparatus (SCBA) with a full face-piece operated in positive pressure protective equipment for fire-fightersUse an extinguishing agent suitable for the surrounding media:::None extinguishing media:Unsuitable extinguishing media:Special protective actions for fire-fighters:Section 6.