# MATERIAL SAFETY DATA SHEET

1. Product and Company Identification Material name PETROSTEP A-6 Version # 02 Revision date 05-02-2013 Manufacturer Stepan Company 22 West Frontage Road Northfield, IL 60093 Emergency Medical 1-800-228-5635 Chemtrec 1-800-424-9300 Chemtrec Int'l +1 703-527-3887 General information General 1-847-446-7500 

### 2. Hazards Identification Emergency overview DANGER -- CORROSIVE FLAMMABLE May be corrosive to eyes. May be corrosive to skin. Harmful if swallowed. Potential health effects Eyes May be corrosive to eyes. Skin May be corrosive to skin. Inhalation Can cause severe respiratory irritation. Ingestion May be harmful if swallowed.

Components CAS # Percent 

### 3. Composition / Information on Ingredients

Proprietary 40 - 60 Benzenesulfonic acid, dimethyl-, mono-sec-alkyl derivs., sodium salts
78-83-1 15 - 25 _Isobutyl alcohol
7732-18-5 10 - 20 Water Proprietary 1 - 4 Benzene, dimethyl-, mono-sec-alkyl derivs.
1310-73-2 0.1 - 0.2 Sodium hydroxide


### 4. First Aid Measures First aid procedures Eye contact Immediately flush eyes with plenty of water for at least 15 minutes. Get medical attention immediately. Skin contact For skin contact flush with large amounts of water. Get medical attention if irritation develops or persists. Immediately take off all contaminated clothing. Wash clothing separately before reuse. Inhalation If symptoms are experienced, remove source of contamination or move victim to fresh air. If symptoms persist, get medical attention. If the affected person is not breathing, apply artificial respiration. If breathing is difficult, give oxygen. Get medical attention immediately. Ingestion If material is ingested, immediately contact a physician or poison control center. Do NOT induce vomiting. 

### 5. Fire Fighting Measures Flammable properties Flammable by OSHA criteria. Vapors may travel considerable distance to a source of ignition and flash back. Extinguishing media Suitable extinguishing media Water fog. Foam. Dry chemical powder. Carbon dioxide (CO2).

Material name: PETROSTEP A-6 Material ID: 8478 Version #: 02 Revisiondate: 05-02-2013 Print date: 05-02-2013 MSDS 1 / 4Protection of firefighters

Protective equipment and precautions for firefightersAs in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear. 

### 6. Accidental Release Measures Personal precautions Keep unnecessary personnel away. Keep upwind. Keep out of low areas. Keep people away from and upwind of spill/leak. Ventilate closed spaces before entering them. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Environmental precautionsPrevent further leakage or spillage if safe to do so. Do not contaminate water. Methods for containment ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Stop the flow of material, if this is without risk. Dike the spilled material, where this is possible. Prevent entry into waterways, sewer, basements or confined areas. Methods for cleaning up Should not be released into the environment. Large Spills: Dike far ahead of spill for later disposal. Small Spills: Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to remove residual contamination. Following product recovery, flush area with water. Never return spills in original containers for re-use. 

### 7. Handling and Storage Handling Avoid contact with skin and eyes. Wash hands thoroughly after handling. All equipment used when handling the product must be grounded. DO NOT handle, store or open near an open flame, sources of heat or sources of ignition. Protect material from direct sunlight. Storage Keep away from heat, sparks and open flame. Prevent electrostatic charge build-up by using common bonding and grounding techniques. Store in cool place. Store in a well-ventilated place. Store in a closed container away from incompatible materials.

ACGIH 

### 8. Exposure Controls / Personal Protection Occupational exposure limits
Components Type Value _Isobutyl alcohol (78-83-1) 50 ppm TWA Sodium hydroxide (1310-73-2) 2 mg/m3 Ceiling U.S. - OSHA Components Type Value _Isobutyl alcohol (78-83-1) 100 ppm PEL 300 mg/m3 Sodium hydroxide (1310-73-2) 2 mg/m3 PEL Engineering controls Use general ventilation. Local exhaust is suggested for use, where possible, in enclosed or confined spaces. Personal protective equipment General Eye wash fountain and emergency showers are recommended. Eye / face protection Wear chemical goggles. Face-shield. Skin protection Wear suitable protective clothing. Use impervious gloves. Respiratory protectionIf ventilation is not sufficient to effectively prevent buildup of aerosols or vapors, appropriate NIOSH/MSHA respiratory protection must be provided. General hygiene considerations Eye wash fountain and emergency showers are recommended.


### 9. Physical & Chemical Properties Appearance Clear. Physical state Liquid Form Liquid. pH 10 - 12 Flash point 90 °F (32.2 °C) Pensky-Martens Closed Cup Density 1.02 g/ml

Material name: PETROSTEP A-6 Material ID: 8478 Version #: 02 Revisiondate: 05-02-2013 Print date: 05-02-2013 MSDS 2 / 4

### 10. Stability & Reactivity

Chemical stability Stable at normal conditions. Incompatible materials Strong acids and oxidizing agents Hazardous decomposition products Sulfur oxide. Carbon oxides.
Possibility of hazardous reactions Will not occur.


### 11. Toxicological Information Not available.

Ecotoxicological data 

### 12. Ecological Information

Components Test Results EC50 Water flea (Ceriodaphnia dubia): 34.59 - 47.13 mg/l 48 hours Sodium hydroxide (1310-73-2) LC50 Western mosquitofish (Gambusia affinis): 125 mg/l 96 hours EC50 Water flea (Daphnia pulex): 950 - 1200 mg/l 48 hours _Isobutyl alcohol (78-83-1) LC50 Bleak (Alburnus alburnus): 1000 - 3000 mg/l 96 hours 

### 13. Disposal Considerations
Waste codes US RCRA Hazardous Waste U List: Reference _Isobutyl alcohol (CAS 78-83-1) U140 Disposal instructions Dispose in accordance with all applicable regulations. 

### 14. Transport Information
Notes Refer to bill of lading or container label for DOT or other transportation hazard classification, if any. 

### 15. Regulatory Information US federal regulations This is an experimental product being supplied under TSCA R&D exemption (40 CFR §720.36). US CERCLA Hazardous Substances: Reportable quantity _Isobutyl alcohol (CAS 78-83-1) 5000 LBS Sodium hydroxide (CAS 1310-73-2) 1000 LBS Reportable Quantity Reportable Quantity (RQ) of this product is 22244 pounds based upon _Isobutyl alcohol(78-83-1) which yielded the lowest resultant RQ according to the following formula: CERCLA ingredient RQ / % of that ingredient in the product. CERCLA (Superfund) reportable quantity _Isobutyl alcohol 5000 Sodium hydroxide 1000 Superfund Amendments and Reauthorization Act of 1986 (SARA) Section 302 extremely hazardous substanceNo

Section 311 hazardous chemical Yes
Inventory status Country(s) or region Inventory name On inventory (yes/no)* No Australia Australian Inventory of Chemical Substances (AICS) No Canada Domestic Substances List (DSL) No Canada Non-Domestic Substances List (NDSL) No China Inventory of Existing Chemical Substances in China (IECSC) No Europe European Inventory of Existing Commercial Chemical Substances (EINECS)

Material name: PETROSTEP A-6 Material ID: 8478 Version #: 02 Revisiondate: 05-02-2013 Print date: 05-02-2013 MSDS 3 / 4Country(s) or region Inventory name On inventory (yes/no)* No Europe European List of Notified Chemical Substances (ELINCS) No Japan Inventory of Existing and New Chemical Substances (ENCS) No Korea Existing Chemicals List (ECL) No New Zealand New Zealand Inventory No Philippines Philippine Inventory of Chemicals and Chemical Substances (PICCS) No United States & Puerto Rico Toxic Substances Control Act (TSCA) Inventory *A "Yes" indicates that all components of this product comply with the inventory requirements administered by the governing country(s) State regulations US - New Jersey RTK - Substances: Listed substance _Isobutyl alcohol (CAS 78-83-1) Substance no. 1043 Sodium hydroxide (CAS 1310-73-2) Substance no. 1706 US - Pennsylvania RTK - Hazardous Substances: Listed substance _Isobutyl alcohol (CAS 78-83-1) Listed. Sodium hydroxide (CAS 1310-73-2) Listed. 

### 16. Other Information HMIS® ratings Health: 3 Flammability: 3 Physical hazard: 0 NFPA ratings Health: 3 Flammability: 3 Instability: 0 Disclaimer Terms and Conditions. This MSDS is designed only as guidance for the products to which it applies. To the greatest extent permitted by applicable law, nothing contained herein creates any legal obligation including contractual obligations, expressed or implied warranties, including any warranties of merchantibility or fitness for particular purpose; or confers any intellectual property rights, including rights to use trademarks or a license to use patents, issued or pending. The information contained herein is based on the manufacturer's own study and the work of others, and is subject to change at any time without further notice. There is no warranty, expressed or implied, as to the accuracy, completeness or adequacy of the information contained herein, and neither the provider nor the manufacturer (nor the agents, directors, officers, contractors or employees of either) are liable to any party for any damages of any nature, including direct, special or consequential damages arising out of or in connection with the accuracy, completeness, adequacy or furnishing of any information in this MSDS, or in any other way related (directly or indirectly) to this MSDS. The receipt and use of this information constitutes consent to these terms and conditions. Issue date 05-02-2013 This data sheet contains changes from the previous version in section(s): Hazards Identification: Emergency overview Composition / Information on Ingredients: Ingredients Fire Fighting Measures: Flammable properties Accidental Release Measures: Methods for containment Accidental Release Measures: Personal precautions Accidental Release Measures: Environmental precautions Accidental Release Measures: Methods for cleaning up Handling and Storage: Handling Handling and Storage: Storage

Material name: PETROSTEP A-6 Material ID: 8478 Version #: 02 Revisiondate: 05-02-2013 Print date: 05-02-2013 MSDS 4 / 4