Stearic Acid – Triple Press

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1. Identification


Product Name Stearic acid 

CAS-No 57-11-4 

Synonyms Octadecanoic acid 

Recommended Use Laboratory chemicals. 

Uses advised against Not for food, drug, pesticide or biocidal product use 

Details of the supplier of the safety data sheet 


Rolfes Chemicals 

Strachan Road 


Tel: 011 873 0157 

Emergency Telephone Number 

0860 44 44 11 

2. Stearic Acid – Triple Press – Hazard(s) identification



Classification under 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) This chemical is considered hazardous  by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) 

Combustible dust Yes


Label Elements 

None required 

Signal Word 


Hazard Statements 

May form combustible dust concentrations in air 

3. Composition/Information on Ingredients


Component  CAS-No  Weight %
Stearic acid  57-11-4  >95


4. Stearic Acid – Triple Press – First-aid measures


Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention if symptoms occur. 

Skin Contact Rinse with plenty of water. Get medical attention if symptoms occur. 

Inhalation Move to fresh air. If breathing is difficult, give oxygen. Get medical attention if symptoms occur.

Stearic Acid 

Ingestion Do not induce vomiting. Get medical attention if symptoms occur. 

Most important symptoms and No information available. 


Notes to Physician Treat symptomatically 

5. Fire-fighting measures


Suitable Extinguishing Media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Unsuitable Extinguishing Media No information available 

Flash Point 196 °C / 384.8 °F 

Method – No information available 

Autoignition Temperature 395 °C / 743 °F 

Explosion Limits 

Upper No data available 

Lower No data available 

Sensitivity to Mechanical Impact No information available 

Sensitivity to Static Discharge No information available 

Specific Hazards Arising from the Chemical 

Fine dust dispersed in air may ignite. Dust can form an explosive mixture in air. Thermal decomposition can lead to release  of irritating gases and vapors. Keep product and empty container away from heat and sources of ignition. 

Hazardous Combustion Products 

Carbon monoxide (CO) Carbon dioxide (CO2

Protective Equipment and Precautions for Firefighters 

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


Health Flammability Instability Physical hazards 1 1 0 N/A

Stearic Acid 

6. Accidental release measures


Personal Precautions Use personal protective equipment. Ensure adequate ventilation. Avoid dust formation. Avoid contact with skin, eyes and clothing. 

Environmental Precautions Avoid release to the environment. 

Methods for Containment and Clean Sweep up or vacuum up spillage and collect in suitable container for disposal. Avoid dust Up formation. 

7. Stearic Acid – Triple Press – Handling and storage


Handling Wear personal protective equipment. Ensure adequate ventilation. Avoid contact with skin, eyes and clothing. Avoid ingestion and inhalation. Avoid dust formation. 

Storage Keep containers tightly closed in a dry, cool and well-ventilated place. 

8. Exposure controls / personal protection


Exposure Guidelines This product does not contain any hazardous materials with occupational exposure limitsestablished by the region specific regulatory bodies. 

Stearic acid  TWA: 10 mg/m

TWA: 3 mg/m3


Engineering Measures Ensure adequate ventilation, especially in confined areas. Ensure that eyewash stations and safety showers are close to the workstation location. 

Personal Protective Equipment 

Eye/face Protection Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard 


Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure. 

Respiratory Protection Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if 

exposure limits are exceeded or if irritation or other symptoms are experienced. 

Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. 

9. Physical and chemical properties


Physical State Solid 

Appearance White 

Odor No information available 

Odor Threshold No information available 

pH No information available 

Melting Point/Range 67 – 69 °C / 152.6 – 156.2 °F 

Boiling Point/Range 361 °C / 681.8 °F @ 760 mmHg 

Flash Point 196 °C / 384.8 °F 

Evaporation Rate Not applicable 

Flammability (solid,gas) No information available 

Flammability or explosive limits 

Upper No data available 

Lower No data available 

Vapor Pressure 1 mmHg @ 174 °C 

Vapor Density Not applicable 

Specific Gravity 0.840


Partition coefficient; n-octanol/water  Autoignition Temperature  

Decomposition Temperature  Viscosity 

Molecular Formula 

Molecular Weight

Reactive Hazard 


Conditions to Avoid 

Incompatible Materials 

Stearic Acid  

No information available  

No data available 395 °C  

/ 743 °F 

No information  

available Not applicable  

C18 H36 O2 


  1. Stability and reactivity None known, based on information  

Hazardous Polymerization Hazardous Reactions 

Acute Toxicity 

available Stable under normal conditions. 

Avoid dust formation. Incompatible products. Excess heat. Combustible  material, Bases, Strong oxidizing agents, Reducing agents 

Hazardous Decomposition Products Carbon monoxide (CO), Carbon dioxide (CO2) Hazardous polymerization does not occur. 

None under normal processing. 


11. Stearic Acid – Triple Press – Toxicological information


Product Information 

Component Information 

Component  LD50 Oral  LD50 Dermal  LC50 Inhalation
Stearic acid  LD50 = 4600 mg/kg ( Rat )  LD50 > 5 g/kg ( Rabbit )  Not listed


Toxicologically Synergistic No information available 


Delayed and immediate effects as well as chronic effects from short and long-term exposure 

Irritation No information available 

Sensitization No information available 

Carcinogenicity The table below indicates whether each agency has listed any ingredient as a carcinogen. 

Component  CAS-No  IARC  NTP  ACGIH  OSHA  Mexico
Stearic acid  57-11-4  Not listed  Not listed  Not listed  Not listed  Not listed


Mutagenic Effects Mutagenic effects have occurred in humans. 

Reproductive Effects No information available. 

Developmental Effects No information available. 

Teratogenicity No information available. 

STOT – single exposure None known 

STOT – repeated exposure None known 

Aspiration hazard No information available 

Symptoms / effects,both acute and No information available 


Endocrine Disruptor Information 

Stearic Acid 

No information available 

Other Adverse Effects The toxicological properties have not been fully investigated. See actual entry in RTECS  for complete information.

Stearic Acid 

12. Ecological information



Do not empty into drains. 

Persistence and Degradability Soluble in water Persistence is unlikely based on information available. Bioaccumulation/ Accumulation No information available. 

Mobility Will likely be mobile in the environment due to its water solubility. 

13. Stearic Acid – Triple Press – Disposal considerations


Waste Disposal Methods Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Chemical waste generators must also consult local, regional, and 

national hazardous waste regulations to ensure complete and accurate classification. 

14. Transport information


DOT Not regulated 

TDG Not regulated 

IATA Not regulated 

IMDG/IMO Not regulated 

15. Regulatory information


International Inventories 

Stearic acid  –  200-313-4  –  X



X – Listed 

E – Indicates a substance that is the subject of a Section 5(e) Consent order under TSCA. 

F – Indicates a substance that is the subject of a Section 5(f) Rule under TSCA. N – Indicates a polymeric substance containing no  free-radical initiator in its inventory name but is considered to cover the designated polymer made with any free-radical initiator  regardless of the amount used. P – Indicates a commenced PMN substance 

R – Indicates a substance that is the subject of a Section 6 risk management rule under TSCA. 

S – Indicates a substance that is identified in a proposed or final Significant New Use Rule 

T – Indicates a substance that is the subject of a Section 4 test rule under TSCA. XU – Indicates a substance exempt from reporting under  the Inventory Update Rule, i.e. Partial Updating of the TSCA Inventory Data Base Production and Site Reports (40 CFR 710(B). 

Y1 – Indicates an exempt polymer that has a number-average molecular weight of 1,000 or greater. 

Y2 – Indicates an exempt polymer that is a polyester and is made only from reactants included in a specified list of low concern  reactants that comprises one of the eligibility criteria for the exemption rule. 

U.S. Federal Regulations 

TSCA 12(b) Not applicable 

SARA 313 Not applicable 

SARA 311/312 Hazard Categories See section 2 for more information 

CWA (Clean Water Act) Not applicable 

Clean Air Act Not applicable 


OSHA Occupational Safety and Health Administration 

Not applicable 

CERCLA Not applicable 

California Proposition 65 This product does not contain any Proposition 65 chemicals U.S. State Right-to-Know Regulations

Stearic Acid 

Not applicable 

U.S. Department of Transportation 

Reportable Quantity (RQ): DOT Marine Pollutant DOT Severe Marine Pollutant 

N N N 

U.S. Department of Homeland Security 

This product does not contain any DHS chemicals. 

Other International Regulations 

Mexico – Grade Slight risk, Grade 1 

16. Other information


All reasonable efforts were exercised to compile this SDS in accordance with GHS SANS 10234.  

The SDS provides information regarding the health, safety and environmental hazards, at the date  of issue, to facilitate the safe receipt, use and handling of the product in the workplace. RLS cannot  anticipate or control all conditions under which the 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 the 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 as  regards 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 the product. Although all reasonable efforts were exercised in the compilation of this  

SDS, RLS does not expressly warrant the accuracy or assume any liability for the incompleteness  of the information contained herein or any advice given. The product is sold and risk passes in  

accordance with the specific terms and conditions of sale. 



The information stated above is considered to be correct, but does not claim to be inclusive and shall only be used as a guideline. The information provided by this document is confirmed by our continuous updating of knowledge and adheres to the products appropriate safety precautions. It does not represent any guarantee of the product’s
properties. RLS Chemicals and its Associates shall not be held accountable for any damage’s consequent of handling the above product.

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