Integrated Sci - Iap

Chemical Spilled - Incident Action Plan -by class C

Group Members: Le Minh Hoang Ngoc Natthawan Jitsuparp Nannaphat Yongpraphat Chalisa Detchanun Kamolchanok Sangnirath

Situation

The location is in Mahidol University International Demonstration School (MUIDS). The scene is an open area in the corner of the road, which is next to the grass field and a parking lot. Next, to the scene, there is an open tap of water and a drain. There are 4 containers on the concrete labelled Polyurethane coating, Sodium Borohydride and Sodium Hydroxide solution, Toluene, and Tetrachloroethylene 99%. Those containers were easy to get hot because they are made of metal. Also, we found a student lied on the ground. We don’t know their condition. But, he has no wounds or bruises. At the same time, all of the four containers are faced in different directions. One of the four containers faced to the grass but the chemical has not yet spilled to the grass. The other three faced to the road and one of them spilled a bit on the road. The situation occurred on Thursday at 10:18 a.m. The sky was clear and sunny with the temperature of 29 ͒ C. The wind blew in the direction towards the west, which confronted with the building.

Observation of the scene

Objective -

Goals: To rescue the student. To clean the chemical correctly and safely.

Information - Background chemicals There were four chemicals leaking at the scene consist of Toluene, Sodium Borohydride and Sodium Hydroxide solution, Polyurethane Coating, and Tetrachloroethylene 99.9% minimum (Perchloroethylene). 1. Toluene UN1294 - Chemical formula: ​C6H5CH3; C7H8

These signs and the word “Danger” were mentioned on the label. The word “Danger” show that this chemical can cause great severe hazard, and the signs represent flammable, affect respiratory, and irritant respectively. ** 50 meters away from the leakage -

Properties - Colorless liquid with a sweet, pungent,​ ​benzene​-like odor. - BP: 231.1° F at 760 mm Hg - MP: -94.9 °C

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Hazards - The central nervous system (CNS) is the primary target organ for toluene toxicity for acute (short-term) and chronic (long-term) exposures. - symptoms: fatigue, sleepiness, headaches, and nausea - causes irritation of the upper respiratory tract and eyes, sore throat, dizziness, and headache

2. Sodium Borohydride and Sodium Hydroxide solution UN3320 - Chemical formula: NaBH4 (Sodium borohydride) & NaOH (Sodium hydroxide)

The sign on the picture indicate how severe the chemical effects on specific area. From the picture below, it shows that this chemical highly affect on health (Extreme danger) and it is unstable if heated, but it is not flammable at all. In addition, its specific hazard is corrosive. ** 50 meters away from the leakage -

Properties - An off-white clear non-aqueous liquid with a slight hydrocarbon odor. Hazard - Burns the skin, eyes and mucous membranes - TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Reaction with water or moist air may release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. - Fire will produce irritating, corrosive and/or toxic gases

3. Polyurethane Coating UN1950 -

Chemical formula:

These signs and the word “Danger” were mentioned on the label. The word “Danger” show that this chemical can cause great severe hazard, and the signs represent flammable, affect respiratory, and irritant respectively. So, it has the same effect as Toluene. ** 100 meters away from the leakage - Properties - Flammable liquid and vapor - Hazard - May be fatal if enters airway or ingested - Causes skin irritation or allergic reaction - Causes serious eye irritation - Causes breathing difficulties if inhaled

4. Tetrachloroethylene 99.9% minimum (Perchloroethylene) UN1897 -

Chemical formula: ​C2Cl4

The color labels on the top right corner of the label means the same as ​Sodium Borohydride and Sodium Hydroxide solution. Therefore, this chemical is stable; does not affected by heat, and not flammable. However, it could cause hazardous effects on health. The toxic sign with number 6 indicate that it is really dangerous. ** 50 meters away from the leakage -

Properties - colorless liquid

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Hazard - short-term: - Breathing - Dizziness - Drowsiness - Headache - Nausea and vomiting - Lack of coordination - Irritation of eyes and respiratory tract - Skin contact - Irritation - Redness and chapping Long-term: - Long-term exposure - Mood - Memory - Attention - Reaction time - Vision - Cancer

Resources -

Uses: These equipments are all essential use for work safely in workplace. Selecting the PPE resources appropriately can reduce the hazard in laboratory. The purpose are to provide and to identified the various types of resources.

PPE ​(Personal Protective Equipment)

Properties

Safety Helmet

avoid impact from falling object, risk of head bumping, and etc.

Gloves

avoid abrasion, cuts, chemical, radiation, etc.

Safety Footwear

protect your foot from chemical spilling

Pictures

Chemical Suit

Eyes Protection

Mask

protection against the penetration of hazardous materials, gas and liquid splash and strong spray of liquids chemical

prevent eyes from harmful particles and corrosive liquid

avoid large-particle droplets, splashes, and sprays that may contain germs

Tasks/Procedure ​Rescue 1. Wear appropriate PPE. 2. Get people out of the scene area by 100 m. 3. Call ambulance (1669) and tell them to wear PPE set. a. Tell them where the scene are located b. Tell them what happened c. Tell them the number of patients d. Tell them what chemicals are there 4. Call the police to investigate the situation and the driver. 5. Make way for the ambulance to come in the parking lot as close to the scene as possible. 6. Let the rescuers come towards the student without stepping on groove between road and pavement as the chemical might flows into it. How to clean 1. Evacuate area to 100m, may be fixed based on wind direction and speed (pic.) 2. Covers all of the drains in the area of 100m surrounding. 3. To isolate and stop chemicals to spread or leaking, using socks to arrange around. 4. Using hazmat plug kit to seal the hole, leaking ignition source. 5. Use mat to cover the chemicals to stop them from heating or evaporation. 6. Follow cleaning instruction by the following step required for each chemical (shown below).

Addiotional Part; 1. Toluene - Wear full PPE - Keep out from heat, and flammable equipment. - Keep away the barrier (ignition source), and stop leaking. - Avoid chemical to flow to sewer. - Absorb with an inert material (sand, earth) and put spilled material in an appropriate waste disposal. 2. Sodium Borohydride and Sodium Hydroxide solution - Evacuate area, keep out people without protection equipment from contact with solution. - Avoid and stop the chemical to the sewer or contact with water. - Contain spilled material back into container (barrier) - Clean up the chemical by absorb into dry sodium carbonate, sand, or other inert materials. - Dispose of in accordance with applicable local, state and federal regulations - In case of clothing and equipment been in contact, wash with warm water and soap. 3. Polyruethen Coating - Wear PPE - Use vermiculite, dry sand, earth ​to absorb and placed into container. - Dispose of in accordance with applicable local, state and federal regulations 4. Tetrachloroethylene - Air out and isolate the spilled area - Remember to wear appropriate PPE - Recover the liquid as much as possible (into the container, barrel) - Neutralized the solution by alkaline material (soda ash, lime), then picked up them by absorb with inert material (such as sand, earth). - NOTICES​ not to use combustible materials. - Dispose of in accordance with applicable local, state and federal regulations

Referrences National Center for Biotechnology Information, PubChem Compound Database. (2018). Toluene. ​Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/toluene#section=Color CAMEO Chemical. (2018). ​Sodium Borohydride and Sodium Hydroxide Solution, with not more than 12% Sodium Borohydride and not more than 40% Sodium Hydroxide. R ​ etrieved from https://cameochemicals.noaa.gov/chemical/19221 Tox Town. (2017, May 31). ​Perchloroethylene (PCE, PERC). ​Retrieved from https://toxtown.nlm.nih.gov/chemicals-and-contaminants/perchloroethylene-pce-perc Hazchem. (2014, May 13). ​Hazchem Symbols Guide - Class 1 To Class 9.​ Retrieved from https://www.safety-label.co.uk/blogs/news/14077629-hazchem-symbols-guide-class-1-to-cla ss-9-explained

Science Lab. (2013, May 21). ​Material Safety Data Sheet Toluene MSDS.​ Retrieved from http://www.sciencelab.com/msds.php?msdsId=9927301

Montchem. (1999, Feb 9). Materials Safety Data Sheet-BoroSpec 1240. Retrieved from http://www.montchem.com/docs/BOROSPEC1240MSDS.pdf Farnell. (2010, Nov). ​Materials Safety Data Sheet-Polyurethane conformal coating. Retrieved from http://www.farnell.com/datasheets/1526118.pdf Baker M. (2007, Mar 8). Materials Safety Data Sheet-Tetrachloroethylene. Retrieved from http://www.cleanersolutions.org/downloads/msds/328/Perchloroethylene%20MSDS.pdf