Relevant identified uses of the substance or mixture and uses advised against
Use: Industrial use.
Manufacturer or supplier’s details
Company: Sasol Chemicals, a division of Sasol South Africa (Pty) Ltd
Address: Sasol Place, 50 Katherine Street, Sandton, 2090, South Africa
Telephone: +27103445000
E-mail address: sasolchem.info.sa@sasol.com
Emergency telephone number:
+44 (0)1235 239 670 (Europe, Israel, Africa, Americas)
+44(0)1235 239 671 (Middle East, Arabic African countries)
+65 3158 1074 (Asia Pacific)
+86 10 5100 3039 (China)
+27 (0)17 610 4444 (South Africa)
+61 (2) 8014 4558 (Australia)

3: Hazards Identification

Classification of the substance or mixture: South Africa. GHS Classification and Labeling of Chemicals – SANS 10234
Classification: Skin corrosion – Category 1A
Label elements: South Africa. GHS Classification and Labeling of Chemicals – SANS 10234

Signal word: Danger
Hazard statements: H314: Causes severe skin burns and eye damage.
Precautionary statements
Prevention: P234: Keep only in original container. P260: Do not breathe dust/ fume/ gas/ mist/ vapours/ spray. P264: Wash hands thoroughly after handling. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.

Response
P390: Absorb spillage to prevent material damage. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353: IF ON SKIN (or hair): Remove/ Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P310: Immediately call a POISON CENTER or doctor/ physician. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Storage
P406: Store in corrosive resistant polypropylene container with a resistant inner liner.

Disposal: P501: Dispose of as hazardous waste in compliance with local and national regulations.
Other hazards: No data available

4: First Aid Measures

Description of necessary first-aid measures
Inhalation
Ensure Important Considerations are also applied: See general information above. Remove to fresh air. Get medical attention immediately If breathing has stopped, apply artificial respiration. Do not use mouth to mouth resuscitation. Administer 100% medical Oxygen by facial mask at a feed rate of 12L/min to 15L/min. Keep patient warm and at rest and maintain airway monitor blood pressure and respiration while waiting for medical assistance.

Skin contact
Ensure Important Considerations are also applied: See general information above. Immediately shower exposed area with large quantities of water for 5 to 15 minutes or until soapiness is gone Completely remove all contaminated clothing and shoes while in a shower. If burns occur, cover the affected area with sterile, dry, loose-fitting dressing. Get medical attention immediately if irritation persists.

Eye contact
Ensure above Important Considerations are also applied. See general information: Speed is essential. Immediately wash the eye(s) with clean water including under the eyelids, for at least 5 to 15 minutes. Take care not to rinse the contaminated water into the unaffected eye. Obtain immediate medical attention. (apply cool packs on eyes while transporting victim to a medical facility).

Ingestion
Ensure Important Considerations are also applied: See general information above. If swallowed, DO NOT induce vomiting. If the patient is conscious, give very large amounts of water to drink and repeat if vomiting occurs. If vomiting occurs, keep head lower than the hips to help prevent aspiration. Never give anything by mouth to an unconscious person. Maintain airway and respiration and observe/treat as for inhalation. Get medical attention immediately
Most important symptoms/effects, acute and delayed

Refer to SECTION 11

Treatment
Rewash eyes with physiological solution and assess extent of corneal damage.

5: Fire and Explosion Data

Suitable extinguishing media: Water spray. Carbon dioxide (CO2). Dry chemical. Foam.
Special hazards arising from the substance or mixture
Although non-combustible, this strong base can react with certain metals causing hydrogen generation, which may be explosive mixture Use water spray to cool fire exposed storage containers, until well after fire has been extinguished. Stay away from ends of fire exposed storage tanks. Caustic fumes may accumulate in confined spaces.

Special protective equipment for firefighters
An approved positive pressure self-contained breathing apparatus must be worn. Although it will provide little or no thermal protection, chemical protective clothing must be worn when handling this substance.

6: Accidental Release Measures

Personal precautions
Ensure suitable personal protection during removal of spillage. Cordon off the area and deny entry to non-protected persons and the public. Evacuate to an area away from and upwind of the incident, if possible, to higher ground. Always work upwind of any spill. Do not touch or walk through spilled material. Stop leaks if you can do so without risk. Sodium hydroxide mist is heavier than air, it will accumulate in excavations and confine spaces and natural depressions.

Environmental precautions
Spillage, uncontrolled discharges into watercourses must be reported to the product supplier, DOW and other regulatory bodies -Product supplier, Local Authority, Department of Water Affairs and other appropriate regulatory bodies. Do not allow product/runoff from fire or spillage control to enter sewers, drains or watercourses.

Methods for cleaning up
Absorb with sand or other non-combustible absorbent material and place into compatible containers for disposal. For a small spillage, allow product to cool and solidify.
Reference to other sections – Refer to Section 8 and 13

7: Handling and Storage

Safe handling advice
Avoid contact with skin and eyes. Use in well-ventilated areas and keep container closed. When using do not eat, drink or smoke. Always wash hands before after use, before eating, drinking and or smoking. Always wear chemical protective clothing when working with this substance. Avoid generation of mist and do not breathe mist and avoid any direct contact with the product. Eye wash fountains and quick drench showers must be provided within the immediate work area for emergency site.

Advice on protection against fire and explosion
Provide sufficient air exchange and/or exhaust in work rooms.Keep away from open flames, hot surfaces and sources of ignition.

Requirements for storage areas and containers
Store on a corrosion resistant surface (e.g. epoxy coated concrete).Storage facilities needs to be laid out, designed and maintained in accordance with legal requirements, standard practice – S310-1.Store in tightly closed, designated mild steel containers, in a dry area, away from acids.Store separate from common metals (e.g. aluminium or light alloys) and oxidizing agents.

Advice on common storage – No data available

8: Exposure Controls/Personal Protection

Mechanical ventilation (dilution and or local exhaust) is recommended for all indoor situations.
Eye wash fountains and quick drench showers must be provided within the immediate work area for emergency use.

Personal protective equipment
Respiratory protection
Ventilation and other forms of engineering controls are the preferred means for controlling exposures. Self-contained breathing apparatus (EN 133) Negative pressure canister type respirator masks should be used for escape or short term rescue purposes. Wear full-face self-contained breathing apparatus with positive pressure or airline mask when sodium monoxide fumes are being evolved.

Hand protection
Impervious gloves

Eye protection
Goggles and a full-face shield must be worn when working with this substance. Wear full-face respiratory protection if there is a possibility of caustic soda fumes being emitted.

Skin and body protection
It is recommended that a hooded chemical resistant(plastic) body suit be worn during operations where there is high risk of exposure. SABS approved acid repellent type overall is recommended. Wear acid resistant impervious gloves when handling the product. -they must be of long type which reach to the elbow and are worn underneath the sleeve. Closed acid resistant shoes must be worn when working with small amounts of this substance. Full length chemically resistant boots must be worn when handling this substance. Hard hat with brim

Hygiene measures
Wash hands immediately after handling the product. Handle in

Exposure Limits:

STEL: 2 (mg/m3) from ACGIH (TLV) [United States] TWA: 2 CEIL: 2 (mg/m3) from OSHA (PEL) [United States] CEIL: 2 (mg/ m3) from NIOSH Consult local authorities for acceptable exposure limits.

9: Physical and Chemical Properties

Information on basic physical and chemical properties
Form                                            Viscous
State of matter                           Liquid; at 20 °C; 1,013 hPa
Colour                                          Clear to slightly turbid, colourless, viscous liquid.
Odour                                          Odourless
Odour Threshold                      No data available
pH                                                14
Melting point/range                 6 – 12 °C; 101.3 kPa
Boiling point/boiling range     140 °C
Flash point                                  Non-flammable
Evaporation rate                        No data available
Flammability (solid, gas)         No data available
Relative vapour density           No data available
Density                                        1.5 g/cm3
Water solubility                         Completely miscible
Partition coefficient: n-octanol/water           log Pow: 0
Viscosity, dynamic                     23 mPa.s; 40 °C

10: Stability and Reactivity Data

Reactivity                                      Stable under normal conditions.
Chemical stability                       No data available
Possibility of hazardous reactions    Violent polymerisation can occur when combined with acetaldehyde, acrolein and acrylonitrile.
Conditions to avoid                      Heat
Materials to avoid                         Strong oxidizing agents Strong acids. Organic materials.
Hazardous decomposition products    Sodium oxides Contact with metals (aluminum, zinc, tin) and Sodium tetrahydroborate liberates hydrogen gas.

11: Toxicological Information

Acute oral toxicity                          Sodium Hydroxide; Caustic Soda: LD50 Rabbit: 500 mg/kg; (literature value)
Acute dermal toxicity                    No data available
Skin irritation                                 Sodium Hydroxide; Caustic Soda: Rabbit: Severe skin irritation;
Eye irritation                                  Sodium Hydroxide; Caustic Soda: Rat: Causes serious eye damage.
Sensitization                                   No data available
Repeated dose toxicity                 No data available
Carcinogenicity                              No data available
Mutagenicity                                  No data available
Toxicity for reproduction            This information is not available.
Further Information                    This information is not available

12: Ecological Information

Toxicity to fish                                  No data available
Toxicity to daphnia and other aquatic invertebrates    No data available
Toxicity to algae                               No data available
Toxicity to bacteria                          No data available
Toxicity to fish                                  No data available
Chronic toxicity in aquatic invertebrates    No data available
Biodegradability                               Expected to be biodegradable
Bio-accumulation                              Does not bio-accumulate.
Results of PBT and vPvB assessment     This substance is not considered to be persistent, bio-accumulating and toxic (PBT). This substance is not considered to be very persistent and very bio-accumulating (vPvB).
Other adverse effects                      This product has no known ecotoxicological effects.

13: Disposal Considerations

Product
Disposal should be in accordance with local, regional and national legislation’s.

14: Transport Information

ADR
UN number:  1824
Class:  8
Packaging group:  II; C5;
Proper shipping name:  SODIUM HYDROXIDE SOLUTION

RID
UN number:  1824
Class:  8
Packaging group:  II; C5
Proper shipping name:  SODIUM HYDROXIDE SOLUTION

ADNR
UN number:  1824
Class:  8
Packaging group:  II; C5
Proper shipping name:  SODIUM HYDROXIDE SOLUTION

IMDG
UN number:  1824
Class:  8
EmS:  F-A, S-B
Packaging group:  II
Proper shipping name:  SODIUM HYDROXIDE SOLUTION
Marine pollutant:  Not a Marine Pollutant

ICAO/IATA
UN number:  1824
Class:  8
Packaging group:  II
Proper shipping name:  SODIUM HYDROXIDE, SOLUTION

15: Other Regulatory Information

Safety, health and environmental regulations/legislation specific for the substance or mixture
EU list of existing chemical substances
All chemical constituents are listed in: EU list of existing chemical substances (See chapter 3)
USA TSCA Inventory
All chemical constituents are listed in: USA TSCA Inventory (See chapter 3)
Canadian Domestic Substances List (DSL)
All chemical constituents are listed in: Canadian Domestic Substances List (DSL) (See chapter 3)
Australian Inv. of Chem. Substances (AICS)
All chemical constituents are listed in: Australian Inv. of Chem. Substances (AICS) (See chapter 3)
New Zealand Inventory of Chemicals (NZIoC)
All chemical constituents are listed in: New Zealand Inventory of Chemicals (NZIoC) (See chapter 3)
Jap. Inv. of Exist. & New Chemicals (ENCS)
All chemical constituents are listed in: Jap. Inv. of Exist. & New Chemicals (ENCS) (See chapter 3)
Japan. Industrial Safety & Health Law (ISHL)
All chemical constituents are listed in: Japan. Industrial Safety & Health Law (ISHL) (See chapter 3)
Korea. Existing Chemicals Inventory (KECI)
All chemical constituents are listed in: Korea. Existing Chemicals Inventory (KECI) (See chapter 3)
Philippines Inventory of Chemicals and Chemical Substances (PICCS)
All chemical constituents are listed in: Philippines Inventory of Chemicals and Chemical Substances (PICCS) (See chapter 3)
China Inv. Existing Chemical Substances (IECSC)
All chemical constituents are listed in: China Inv. Existing Chemical Substances (IECSC) (See chapter 3)

16: Other Information

Full text of H-Statements
H314
Causes severe skin burns and eye damage.
All reasonable efforts were exercised to compile this SDS in accordance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The SDS only provides information regarding the health, safety and environmental hazards at the date of issue, to facilitate the safe receipt, use and handling of this product in the workplace and does not replace any product information or product specifications. Since Sasol and its subsidiaries cannot anticipate or control all conditions under which this product may be handled, used and received in the workplace, it remains the obligation of each user, receiver or handler to, prior to usage, review this SDS in the context within which this product will be received, handled or used in the workplace. The user, handler or receiver must ensure that the necessary mitigating measures are in place with respect to health and safety. This does not substitute the need or requirement for any relevant risk assessments to be conducted. It further remains the responsibility of the receiver, handler or user to communicate such information to all relevant parties that may be involved in the receipt, use or handling of this product.
Although all reasonable efforts were exercised in the compilation of this SDS, Sasol does not expressly warrant the accuracy of, or assume any liability for incomplete information contained herein or any advice given. When this product is sold, risk passes to the purchaser in accordance with the specific terms and conditions of sale.

EXCLUSION OF LIABILITY

All information and instructions provided in this Material Safety Data Sheet in respect of the substance is given solely in terms of the provisions of the Occupational Health and Safety Act No 85 of 1993

and Regulations (“the Act”), is based on scientific and technical knowledge as at the date indicated on this MS Material Safety Data Sheet and is presented in good faith to be correct.

The information and instructions provided in this MSDS apply only to the substance in its present form and not to any formulation or mix, in which event it is the sole responsibility of the user of the substance as formulated and/or mixed to investigate and establish any danger which may arise out of its use, wherever such user may be situated.

It is the sole responsibility of the person in receipt of this Material Safety Data Sheet wherever such recipient may be situated, to ensure that the information provided is communicated to and understood by any person who may come in contact with the substance in any place and in any manner whatsoever. If such recipient produces formulations or mixes using the substance, then it is such recipient’s sole responsibility to comply with the provisions of the Act in respect of the provision of the necessary Material Safety Data Sheet, or to comply with any other applicable legislation.