UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON, DC 20460

			OFFICE OF  PREVENTION, PESTICIDES,  AND TOXIC SUBSTANCES

 							9/25/07

MEMORANDUM

SUBJECT:	Product Chemistry Science  Chapter For:  SODIUM FLUORIDE 
Reregistration  Eligibility  Decision (RED)

From:	A. Najm Shamim, PhD,  Chemist

	Regulatory Management Branch II

	Antimicrobials Division (7510P)

To:	Timothy McMahon, PhD, Risk Assessor for Sodium Fluoride  RED

	Antimicrobials Division (7510P)

			And 

	Sanyvette Willaims, D.V.D., CRM for Sodium Fluoride RED

	Antimicrobials Division (7510P)

Thru:	Mark Hartman, Chief

	Regulatory Management Branch II

	Antimicrobials Division (7510P)

	

		PRODUCT CHEMISTRY OF SODIUM FLUORIDE

Chemical Name:	Sodium Fluoride

Common Names:	Chemifluoro, Dentafluoro, Villiaumite

Chemical Formula:	NaF

CAS#:			7681-49-4

Parameter	Result	MRID

Formula Weight	42.00	43563101

Melting Point	993 o C	43563101

Boiling Point	1704 o C	43563101

Vapor Pressure	5.43 x 10-26 mm Hg (25 o C)1*

	Solubility	Water: 4.10 g/100 ml; at 15°C,  

4.3 g/ 100 ml at 25 o C.

Alcohol: Insoluble	43563101

pH	Slightly Alkaline

	Density	2.55 g/cm3	43563101

Log KOW	-0.77 1

	Henry Law Constant

(air/water partition constant)	5.04 x 10-33 atm m3/mole1

	1 The values have been taken form the US EPA’s EPI Suite Modeling
Program, Developed by OPPT

Vapor pressure as reported in study report (MRID 43563101) = 1 mm Hg
(1077 o C).

Sources for the remaining characteristics are: 

Bibliography

 a) Hawley’s Condensed Chemical Dictionary, 13th Edition, Editor:
Richard Lewis, Sr; John Wiley Publishers)

 b) Merck Index, 12 Edition

 c) MRID 43563101. Muchow, T. (1994). Product Chemistry Data: Sodium
Fluoride.                                                       
Unpublished study prepared by Osmose Wood Preserving, Inc. 27 p

