Palmitic acid
  • Hexadecanoic acid
  • Cetylic acid
  • 1-Pentadecanecarboxylic acid
  • Palmitinic acid
  • Prifac 2960
  • Neo-Fat 16
Formula CH3(CH2)14COOH
Structure
Description White crystals, scales or flakes or white to yellow-white crystalline solid or powder.
Uses Manufacture of metallic palmitates, soaps, lube oils, waterproofing, food-grade additives.

Registry Numbers and Inventories.
CAS 57-10-3
NIH PubChem CID 985
EC (EINECS/ELINCS) 200-312-9
EC Class R: 36/37/38, S: 26-36
RTECS RT4550000
RTECS class Tumorigen; Natural Product; Primary Irritant
Merck 12,7128
Beilstein/Gmelin 607489
Beilstein Reference 4-02-00-01157
FEMA 2832
Swiss Giftliste 1 G-7389
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed
Korea ECL Listed
Philippiens PICCS Listed

Properties.
Formula C16H32O2
Formula mass 256.43
Melting point, °C 61 - 63
Boiling point, °C 352
Vapor pressure, mmHg 3E-5 (25 C)
Saturation Concentration Very low at 25 C
Evaporization number Negligible
Critical temperature 457
Critical pressure 14.90
Density 0.853 g/cm3 (20 C)
Solubility in water Insoluble
Viscosity 142.90 cp (160 C)
Surface tension 28.2 g/s2 at 70 C
Refractive index 1.4281 (70 C)
pKa/pKb 4.78 (pKa)
Partition coefficient, pKow 7.17
Heat of vaporization 61.7 kJ/mol
Heat of combustion -10030.6 kJ/mol

Hazards and Protection.
Storage Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
WHMIS Insufficient information
Handling Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection Eyes: 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 EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Clean up residual material by washing area with a 2-5% solution of soda ash.
Disposal code 4
Stability Stable under normal temperatures and pressures.
Incompatibilities Bases, oxidizing materials, reducing materials.
Decomposition Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C 154
Autoignition, °C 377
Upper exp. limit, % 4.9
Lower exp. limit, % 0.5
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
NFPA Health 2
  Flammability 1
  Reactivity 0

Health.
Poison_Class -
Exposure effects The toxicological properties of this material have not been investigated.
   Ingestion May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
   Inhalation Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin Causes skin irritation.
   Eyes Causes eye irritation.

First aid
 
   Ingestion Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transportation.
USCG CHRIS Code FAD  
USCG Compatatibility Group 34 Esters
HS Code 2915 70 15  
IMO Chemical Code 18
IMO Pollution Category III

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