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STEARIC ACID

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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 57-11-4
none
DOT Hazard Label USCG CHRIS Code
data unavailable
NIOSH Pocket Guide International Chem Safety Card
none
NFPA 704
Diamond Hazard Value Description
1
1 0
Blue Health 1 Can cause significant irritation.
Red Flammability 1 Must be preheated before ignition can occur.
Yellow Instability 0 Normally stable, even under fire conditions.
White Special
(NFPA, 2010)
General Description
White solid with a mild odor. Floats on water. (USCG, 1999)

The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
none
Air & Water Reactions
Slightly soluble in water.
Fire Hazard
This chemical is combustible. This chemical can heat spontaneously. (NTP, 1992)
Health Hazard
Compound is generally considered nontoxic. Inhalation of dust irritates nose and throat. Dust causes mild irritation of eyes. (USCG, 1999)
Reactivity Profile
STEARIC ACID is incompatible with strong oxidizers and strong bases. It is also incompatible with reducing agents. (NTP, 1992)
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
No information available.
Firefighting
Fire Extinguishing Agents Not to Be Used: Water or foam may cause frothing.

Fire Extinguishing Agents: Foam, dry chemical, or carbon dioxide (USCG, 1999)
Non-Fire Response
SMALL SPILLS AND LEAKAGE: Should a spill occur while you are handling this chemical, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with 60-70% ethanol and transfer the dampened material to a suitable container. Use absorbent paper dampened with 60-70% ethanol to pick up any remaining material. Seal the absorbent paper, and any of your clothes, which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this chemical under ambient temperatures, and keep it away from oxidizing materials. (NTP, 1992)
Protective Clothing
For prolonged exposure to vapors, use air-supplied mask or chemical cartridge respirator; impervious gloves; goggles; impervious apron (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.

Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Chemical Formula:
  • C18H36O2
Flash Point: 385°F (NTP, 1992)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: 743°F (USCG, 1999)
Melting Point: 156.7°F (NTP, 1992)
Vapor Pressure: 1 mmHg at 344.7°F ; 5 mmHg at 408.2°F (NTP, 1992)
Vapor Density (Relative to Air): 9.8 (NTP, 1992) - Heavier than air; will sink
Specific Gravity: 0.86 at 68°F (USCG, 1999) - Less dense than water; will float
Boiling Point: 721°F at 760 mmHg (NTP, 1992)
Molecular Weight: 284.48 (NTP, 1992)
Water Solubility: 1 to 10 mg/mL at 73°F (NTP, 1992)
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Octadecanoic acid, n-; (Stearic acid) (57-11-4) 14 mg/m3 150 mg/m3 910 mg/m3
(DOE, 2024)

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

No regulatory information available.

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • A 1760
  • ADEKA FATTY ACID SA 910
  • BAROLUB FTA
  • CELOZOLE
  • CENTURY 1210
  • CENTURY 1220
  • CENTURY 1230
  • CENTURY 1240
  • CETYLACETIC ACID
  • DAR-CHEM 14
  • EDENOR ST 1
  • EDENOR ST 20
  • EMERSOL 120
  • EMERSOL 132
  • EMERSOL 150
  • EMERSOL 153
  • EMERSOL 153NF
  • EMERSOL 6349
  • 17FA
  • FORMULA 300
  • GLYCON DP
  • GLYCON S-70
  • GLYCON S-80
  • GLYCON S-90
  • GLYCON TP
  • GROCO 54
  • GROCO 55
  • GROCO 55L
  • GROCO 58
  • GROCO 59
  • 1-HEPTADECANECARBOXYLIC ACID
  • HUMKO INDUSTRENE R
  • HY-PHI 1199
  • HY-PHI 1205
  • HY-PHI 1303
  • HY-PHI 1401
  • HYDROFOL 1895
  • HYDROFOL ACID 150
  • HYDROFOL ACID 1655
  • HYDROFOL ACID 1855
  • HYDROFOL ACID 1895
  • HYSTRENE 4516
  • HYSTRENE 5016
  • HYSTRENE 7018
  • HYSTRENE 80
  • HYSTRENE 9718
  • HYSTRENE 9718NF
  • HYSTRENE 9718NFFG
  • HYSTRENE S 97
  • HYSTRENE T 70
  • INDUSTRENE 5016
  • INDUSTRENE 8718
  • INDUSTRENE 9018
  • INDUSTRENE R
  • 400JB9103-88
  • KAM 1000
  • KAM 2000
  • KAM 3000
  • KORTACID 1895
  • LOXIOL G 20
  • LUNAC 30
  • LUNAC S 20
  • LUNAC S 30
  • LUNAC S 40
  • LUNAC S 90
  • LUNAC S 90KC
  • N-OCTADECANOIC ACID
  • N-OCTADECYLIC ACID
  • NAA 173
  • NAA 180
  • NEO-FAT 18
  • NEO-FAT 18-53
  • NEO-FAT 18-54
  • NEO-FAT 18-55
  • NEO-FAT 18-59
  • NEO-FAT 18-61
  • NEO-FAT 18-S
  • NEO-FAT 18S
  • NOPCOCERA LU 6418
  • NORSOREX AP
  • OCTADECANOIC ACID
  • PD 185
  • PEARL STEARIC
  • PRISTERENE 4900
  • PROMULSIN
  • PROVISCOL WAX
  • S 30C
  • SELOSOL 920
  • STEAREX BEADS
  • STEARIC ACID
  • STEAROPHANIC ACID
  • SUNFAT 18S
  • TEGOSTEARIC 254
  • TEGOSTEARIC 255
  • TEGOSTEARIC 272
  • VANICOL

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