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Palmitic acid

Names

[ CAS No. ]:
57-10-3

[ Name ]:
Palmitic acid

[Synonym ]:
n-hexadecanoic acid
1-hexadecanoic acid
hexdecanoic acid
Hexadecanoic acid
MFCD00002747
EINECS 200-312-9
Neo-Fat 16
Palmitic acid

Biological Activity

Chemical & Physical Properties

[ Density]:
0.9±0.1 g/cm3

[ Boiling Point ]:
340.6±5.0 °C at 760 mmHg

[ Melting Point ]:
61-62.5 °C(lit.)

[ Molecular Formula ]:
C16H32O2

[ Molecular Weight ]:
256.424

[ Flash Point ]:
154.1±12.5 °C

[ Exact Mass ]:
256.240234

[ PSA ]:
37.30000

[ LogP ]:
7.15

[ Vapour Pressure ]:
0.0±0.8 mmHg at 25°C

[ Index of Refraction ]:
1.454

[ Stability ]:
Stable. Combustible. Incompatible with bases, oxidizing agents, reducing agents.

[ Water Solubility ]:
insoluble

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RT4550000
CHEMICAL NAME :
Palmitic acid
CAS REGISTRY NUMBER :
57-10-3
BEILSTEIN REFERENCE NO. :
0607489
LAST UPDATED :
199710
DATA ITEMS CITED :
10
MOLECULAR FORMULA :
C16-H32-O2
MOLECULAR WEIGHT :
256.48
WISWESSER LINE NOTATION :
QV15

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Human
REFERENCE :
85DKA8 "Cutaneous Toxicity, Proceedings of the 3rd Conference, 1976," Drill, V.A., and P. Lazar, eds., New York, Academic Press, Inc. 1977 Volume(issue)/page/year: -,127,1977 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>10 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 37,251,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
57 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold
REFERENCE :
APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 18,141,1961 ** TUMORIGENIC DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Implant
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1000 mg/kg
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Kidney, Ureter, Bladder - tumors
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 26,105,1966 *** REVIEWS *** TOXICOLOGY REVIEW AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 21,100,1960 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81460 No. of Facilities: 1477 (estimated) No. of Industries: 23 No. of Occupations: 34 No. of Employees: 20670 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81460 No. of Facilities: 5543 (estimated) No. of Industries: 55 No. of Occupations: 61 No. of Employees: 105420 (estimated) No. of Female Employees: 20470 (estimated)

Safety Information

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi:Irritant

[ Risk Phrases ]:
R36/38

[ Safety Phrases ]:
S26-S37/39

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
-

[ RTECS ]:
RT4550000

[ HS Code ]:
2915709000

Synthetic Route

Precursor & DownStream

Customs

[ HS Code ]: 2915709000

[ Summary ]:
2915709000. palmitic acid and its salts and esters. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

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