NTP CHEMICAL REPOSITORY (RADIAN CORPORATION, AUGUST 29, 1991)

SODIUM FLUORIDE




IDENTIFIERS





CATALOG ID NUMBER: 000178

CAS NUMBER: 7681-49-4

BASE CHEMICAL NAME: SODIUMFLUORIDE

PRIMARY NAME: SODIUM FLUORIDE

CHEMICAL FORMULA: NaF

STRUCTURAL FORMULA: NaF

WLN: NA F

SYNONYMS:
FLORIDINE
SODIUM HYDROFLUORIDE
SODIUM MONOFLUORIDE
DISODIUM DIFLUORIDE
TRISODIUM TRIFLUORIDE
FLUORIDE, SODIUM
ALCOA SODIUM FLUORIDE
ANTIBULIT
CAVI-TROL
CHEMIFLUOR
CREDO
DURAPHAT
FDA 0101
F1-TABS
FLOROCID
FLOZENGES
FLUORAL
FLUORIDENT
FLUORIGARD
FLUORINEED
FLUORINSE
FLUORITAB
FLUOROCID
FLUOR-O-KOTE
FLUOROL
FLUOROS
FLURA
FLURA DROPS
FLURA-GEL
FLURA-LOZ
FLURCARE
FLURSOL
FUNGOL B
GEL II
GELUTION
GLEEM
IRADICAV
KARIDIUM
KARIGEL
KARI-RINSE
LEA-COV
LEMOFLUR
LURIDE
LURIDE LOZI-TABS
LURIDE-SF
NAFEEN
NAFPAK
NA FRINSE
NATRIUM FLUORIDE
NCI-C55221
NUFLUOR
OSSALIN
OSSIN
OSTEOFLUOR
PEDIAFLOR
PEDIDENT
PENNWHITE
PERGANTENE
PHOS-FLUR
POINT TWO
PREDENT
RAFLUOR
RESCUE SQUAD
ROACH SALT
SODIUM FLUORIDE CYCLIC DIMER
SO-FLO
STAY-FLO
STUDAFLUOR
SUPER-DENT
T-FLUORIDE
THERA-FLUR
THERA-FLUR-N
UN 1690
VILLIAUMITE
ZYMAFLUOR





PHYSICAL CHEMICAL DATA





PHYSICAL DESCRIPTION: LITERATURE: White crystalline powder
REPOSITORY: White powder

MOLECULAR WEIGHT: 41.99

SPECIFIC GRAVITY: 2.558 @ 41 C [016,062,395]

DENSITY: 2.79 g/mL @ 20 C [371]

MP (DEG C): 993 C [016,033,043,395]

BP (DEG C): 1695 C [016,062,395,421]

SOLUBILITIES:
WATER : 10-50 mg/mL @ 23 C (RAD)

DMSO : <1 mg/mL @ 23 C (RAD)

95% ETHANOL : <1 mg/mL @ 23 C (RAD)

METHANOL : Not available

ACETONE : <1 mg/mL @ 23 C (RAD)

TOLUENE : Not available

OTHER SOLVENTS:
Alcohol: Very slightly soluble [016,062,295,455]
Hydrogen fluoride: Soluble [016,395]

VOLATILITY:
Vapor pressure: 1 mm Hg @ 1077 C [038,043,051]; 5 mm Hg @ 1186 C [038]
Vapor density : Not available

FLAMMABILITY(FLASH POINT):
Literature sources indicate that this chemical is nonflammable [051,058,
173,371]. Fires involving this material can be controlled with a dry chemical,
carbon dioxide or Halon extinguisher.

UEL: Not available LEL: Not available

REACTIVITY:
This chemical is incompatible with strong acids [058]. Aqueous solutions
have an alkaline reaction caused by partial hydrolysis [033,051]. It is also
incompatible with calcium and magnesium salts [295].

STABILITY:
This chemical may be sensitive to prolonged exposure to moisture [275].
Solutions of this chemical in water, DMSO, 95% ethanol or acetone should be
stable for 24 hours under normal lab conditions (RAD).

OTHER PHYSICAL DATA:
Refractive index: 1.336 [016,395]
pH of freshly prepared saturated solution: 7.4 [033]
Odorless [058,173,371,455]
Density: 2.558 g/mL @ 41 C [016,062,395]
Aqueous solutions etch glass [033,051,295]
Salty taste [173]
Vapor pressure: 10 mm Hg @ 1240 C; 20 mm Hg @ 1300 C; 40 mm Hg @ 1363 C [038]
Vapor pressure: 60 mm Hg @ 1403 C; 100 mm Hg @ 1455 C [038]
Vapor pressure: 200 mm Hg @ 1531 C; 400 mm Hg @ 1617 C [038]
Vapor pressure: 760 mm Hg @ 1704 C [038]
Heat of fusion: 166.7 cal/g [371]





TOXICITY





NIOSH REGISTRY NUMBER: WB0350000

TOXICITY:

       typ. dose    mode     specie      amount     units     other

         LDLo       orl       wmn           90      mg/kg

         LDLo       orl       wmn          360      mg/kg

         TDLo       orl       wmn            7      mg/kg

         TDLo       orl       man         1662      mg/kg

         TDLo       orl       hmn          214      ug/kg

         LDLo       orl       hmn           71      mg/kg

         LDLo       orl       hmn           75      mg/kg

         TDLo       idr       hmn           14      ug/kg

         LDLo       unr       man           75      mg/kg

         LD50       orl       rat           52      mg/kg

         LD50       ipr       rat           22      mg/kg

         LD50       scu       rat          175      mg/kg

         LD50       ivn       rat           26      mg/kg

         LD50       orl       mus           57      mg/kg

         LDLo       skn       mus          300      mg/kg

         LD50       ipr       mus           38      mg/kg

         LD50       scu       mus           70      mg/kg

         LD50       ivn       mus        50830      ug/kg

         LDLo       orl       dog           75      mg/kg

         LDLo       ipr       dog           50      mg/kg

         LDLo       scu       dog          155      mg/kg

         LDLo       ivn       dog           80      mg/kg

         LDLo       ims       dog           40      mg/kg

         LD50       ivn       mky        26600      ug/kg

         LDLo       scu       cat           14      mg/kg

         LD50       orl       rbt          200      mg/kg

         LDLo       ipr       rbt          250      mg/kg

         LDLo       scu       rbt          100      mg/kg

         LDLo       scu       gpg          100      mg/kg

         LDLo       scu       frg          448      mg/kg

         LD50       orl       dom          100      mg/kg

         LD50       orl       bwd          110      mg/kg


AQTX/TLM96: Not available

SAX TOXICITY EVALUATION:
THR: Human poison by ingestion and possibly other routes. Experimental
poison by ingestion, skin contact, intravenous, intraperitoneal, sub-
cutaneous and intramuscular routes. An experimental tumorigen and ter-
atogen. Human systemic effects by ingestion and intradermal routes.
Human mutagenic data. A corrosive irritant to skin, eyes and mucous
membranes. Experimental reproductive effects.

CARCINOGENICITY:
Tumorigenic Data:
TDLo: orl-mus 14 mg/kg/43W-C
TD : orl-mus 140 mg/kg/43W-C
TD : orl-mus 4200 mg/kg/30W-C
TD : orl-mus 2190 mg/kg/2Y-C
TD : orl-mus 4217 mg/kg/30W-C
TD : orl-mus 4242 mg/kg/30W-C
TD : orl-mus 4368 mg/kg/30W-C
TD : orl-mus 87 gm/kg/97W-C
Review: IARC Cancer Review: Human Inadequate Evidence
IARC Cancer Review: Animal Inadequate Evidence
IARC: Not classifiable as a human carcinogen [015,395,610]
Status: NTP Carcinogenesis Studies; on test (two-year studies), January 1990

MUTATION DATA: See RTECS printout for data

TERATOGENICITY: See RTECS printout for data

STANDARDS, REGULATIONS & RECOMMENDATIONS:
OSHA: Federal Register (1/19/89) and 29 CFR 1910.1000 Subpart Z
Transitional Limit: PEL-TWA 2.5 mg(F)/m3 [015,327,545,610]
Final Limit: PEL-TWA 2.5 mg(F)/m3 [015,545,610]
ACGIH: TLV-TWA 2.5 mg(F)/m3 [015,415,421,610]
NIOSH Criteria Document: Recommended Exposure Limit to this compound-air:
TWA 2.5 mg(F)/m3/10H [015,610]
NFPA Hazard Rating: Health (H): 2
Flammability (F): 0
Reactivity (R): 0
H2: Materials hazardous to health, but areas may be entered freely with
full-faced mask self-contained breathing apparatus which provides
eye protection (see NFPA for details).
F0: Materials that will not burn (see NFPA for details).
R0: Materials which are normally stable even under fire exposure conditions
and which are not reactive with water (see NFPA for details).

OTHER TOXICITY DATA:
Skin and Eye Irritation Data:
eye-rbt 20 mg/24H MOD
Review: Toxicology Review-4
Standards and Regulations: DOT-Hazard: ORM-B; Label: None, solid
DOT-Hazard: Corrosive material; Label: Corrosive,
solution
DOT-IMO: Poison B; Label: St. Andrews Cross
Status: NIOSH Analytical Methods: see Fluorides, 7902; Acids, inorganic, 7903
EPA Genetox Program 1988, Positive: D melanogaster-whole sex chrom.
loss
EPA Genetox Program 1988, Negative: D melanogaster-nondisjunction;
N crassa-aneuploidy
EPA Genetox Program 1988, Negative: In vivo SCE-nonhuman; S cerevisiae
gene conversion
EPA Genetox Program 1988, Inconclusive: D melanogaster-partial sex
chrom. loss
EPA Genetox Program 1988, Inconclusive: Histidine reversion-Ames test
EPA Genetox Program 1988, Inconclusive: D melanogaster Sex-linked
lethal
EPA TSCA Chemical Inventory, 1989
EPA TSCA Test Submission (TSCATS) Data Base, April 1990
Lethal dose in humans is 5-10 mg/kg [301]





OTHER DATA (Regulatory)





PROPER SHIPPING NAME (IATA): Sodium fluoride

UN/ID NUMBER: UN1690

HAZARD CLASS: 6.1 SUBSIDIARY RISK: None PACKING GROUP: III

LABELS REQUIRED: Keep away from food

PACKAGING: PASSENGER: PKG. INSTR.: 619, Y619 MAXIMUM QUANTITY: 100 kg, 10 kg
CARGO : PKG. INSTR.: 619 MAXIMUM QUANTITY: 200 kg

SPECIAL PROVISIONS: None

USES:
This chemical is used as an insecticide, a constituent of vitreous enamel
and glass mixtures and as a steel degassing agent. It is used in electro-
plating fluxes, heat treating salt compositions and fluoridation of drinking
water. It is also used as a disinfectant for brewery apparatus, for preserving
wood, pastes and mucilage, in the manufacture of coated paper in frosting glass
and in the removal of hydrogen fluoride from exhuast gases. It is used as a
dental caries prophylactic. In veterinary medicine, it is used as an anthel-
mintic, a pediculicide and an acaricide. It is also used as a preservative for
toothpastes, in laundry soap and in cryolite manufacture. Single crystals are
used as windows in ultraviolet and infrared radiation detecting devices.

COMMENTS:
This is the first compound to be used when municipal drinking water fluor-
idation was approved in the U.S. in 1950, usually at 1 mg/L. The insecticide
grade is frequently dyed blue.





HANDLING PROCEDURES





ACUTE/CHRONIC HAZARDS:
This compound is toxic by ingestion, inhalation and skin contact [036,
269,406]. It may cause irritation [269]. When heated to decomposition it
emits toxic fumes of hydrogen fluoride gas and sodium oxide [043,058]. It
is corrosive [043].

MINIMUM PROTECTIVE CLOTHING:
If Tyvek-type disposable protective clothing is not worn during
handling of this chemical, wear disposable Tyvek-type sleeves taped to
your gloves.

RECOMMENDED GLOVE MATERIALS:
Permeation Test Results For The Neat (Undiluted) Chemical:
The permeation test results for the neat (undiluted) chemical are given
below. The breakthrough times of this chemical are given for each glove type
tested. The table is a presentation of actual test results, not specific
recommendations or suggestions. Avoid glove types which exhibit breakthrough
times of less than the anticipated task time plus an adequate safety factor.
If this chemical makes direct contact with your glove, or if a tear, puncture
or hole develops, replace them at once.

Glove Type Model Number Thickness Breakthrough Time
Latex Ackwell 5-109 0.15 mm 480 min
PVC Edmont 34-100 0.18 mm 480 min
Nitrile Edmont 37-155 0.38 mm 480 min
Neoprene Edmont 29-870 0.51 mm 480 min

RECOMMENDED RESPIRATOR:
Where the neat test chemical is weighed and diluted, wear a NIOSH-
approved half face respirator equipped with a combination filter cartridge,
i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid
gas, SO2 and a high efficiency particulate filter).
Splash proof safety goggles should be worn while handling this
chemical. Alternatively, a full face respirator, equipped as above,
may be used to provide simultaneous eye and respiratory protection.

OTHER: Not available

STORAGE PRECAUTIONS:
You should protect this material from exposure to light and moisture and
store it under ambient temperatures. If possible, it would be prudent to store
this compound under inert atmosphere.

SPILLS AND LEAKAGE:
If you spill this chemical, you should dampen the solid spill material
with water,then transfer the dampened material to a suitable container. Use
absorbent paper dampened with water to pick up any remaining material. Seal
your contaminated clothing and the absorbent paper in a vapor-tight plastic
bag for eventual disposal. Wash all contaminated surfaces 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.

DISPOSAL AND WASTE TREATMENT: Not available





EMERGENCY PROCEDURES





SKIN CONTACT:
IMMEDIATELY flood affected skin with water while removing and isolating
all contaminated clothing. Gently wash all affected skin areas thoroughly
with soap and water.
IMMEDIATELY call a hospital or poison control center even if no symptoms
(such as redness or irritation) develop.
IMMEDIATELY transport the victim to a hospital for treatment after
washing the affected areas.

INHALATION:
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air.
IMMEDIATELY call a physician and be prepared to transport the victim to a
hospital even if no symptoms (such as wheezing, coughing, shortness of breath,
or burning in the mouth, throat, or chest) develop.
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 Respirator Recommendation.

EYE CONTACT:
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.

INGESTION:
DO NOT INDUCE VOMITING. Corrosive chemicals will destroy the membranes
of the mouth, throat, and esophagus and, in addition, have a high risk of
being aspirated into the victim's lungs during vomiting which increases the
medical problems.
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. IMMEDIATELY transport the victim to a hospital.
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. Transport the victim
IMMEDIATELY to a hospital.

SYMPTOMS:
Symptoms of exposure to this chemical include irritation of the skin,
eyes and respiratory tract [036,102,269,421]. It is corrosive [043]. It
causes nausea, vomiting, abdominal distress, diarrhea, stupor and weakness
[033,058,371,430]. In lethal doses, it causes muscular weakness, tremors,
convulsions, collapse, dyspnea, respiratory failure, cardiac failure and
death [033,058,151,173]. Chronic exposure to this chemical causes mottling
of tooth enamel and osteosclerosis [058,158,295,395]. Other chronic symptoms
include shortness of breath, cough, elevated temperature and cyanosis [036].
This compound can cause paresthesia, drooping of the eyelids, headache, hyper-
motility, EKG changes, respiratory depression, salivary gland changes (intense
salivation) and increased immune response [043,173]. It can cause burning and
damage to the eyes [058]. In chronic poisoning, it causes optic atrophy due
to compression of the optic nerves by changes in the bones of the skull [099].
Other symptoms include burning pain, corrosion of the stomach and other parts
of the gastrointestinal tract, edema of the brain and lungs, and petechial
hemorrhage of the lungs and heart [173]. It can cause an allergic rash [102,
151,158]. Other symptoms include thick, mucoid discharge from the mouth and
nose, painful carpopedal spasms of the extremities, severe hypocalemia, tetany,
dilated pupils, kidney damage, brain damage, acidosis, dehydration and thirst,
anuria, wet and cold skin, weak and thready pulse, shallow and unlabored res-
piration, pallor and weak heart sounds [151]. It can also cause hypomagnesia
and anemia [301]. Exposure can lead to weak pulse, difficulty in speaking and
disturbed color vision [102]. Other symptoms include loss of consciousness and
albuminuria [430].





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