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