SODIUM FLUORIDE
SYNONYMS:
ALCOA
SODIUM FLUORIDE; ANTIBULIT; CHEMIFLUOR; CREDO; EEC No: 009-004-00-7; EINECS No.
231-667-8; DISODIUM DIFLUORIDE; FDA 0101; Fl-TABS; FLORIDINE; FLUORAL;
FLUORIDENT; FLUORURO SODICO (Spanish); FLUORERE de SODIUM (French); NCI C55221;
PRO-PORTION; ROACH SALT; SODIUM HYDROFLUORIDE; SODIUM MONOFLUORIDE; TRISODIUM
TRIFLUORIDE; VILLIAUMITE; ZENDIUM
IDENTIFICATION:
CAS:
7681-49-4
DOT ID:
UN1690
Hazard Class or Division:
6.1 (POISONOUS/TOXIC MATERIALS)
ERG Guide:
154
Formula:
FNa
RTECS No:
WB0350000
Properties:
Noncombustible
clear crystals or white powder; pesticide grade tinted blue. Odorless. Sinks in
water; slightly soluble.
Uses:
In
electroplating; a flux in the manufacture of rimmed steel, aluminum, and
magnesium; pickling of stainless steel; in chemical cleaning; in the resmelting
of aluminum.
HEALTH & SAFETY INFORMATION
• IDLH:
250
mg[F]/m3as fluorides
•
OSHA Table Z-1 Air Contaminant as F
• NIOSH Criteria Document
: NIOSH 76-103 INORGANIC FLUORIDE
•
Dust may cause nausea, vomiting, dizziness, headache, diarrhea. High levels of
exposure may cause death.The following long-term effects are not expected to
occur when chemical is properly used in water for dental cavity prevention: May
cause skin rash and ulcers; kidney damage; increase bone density, stimulate new
bone growth or cause calcium deposits in ligaments. This may become a problem
at levels of 20 to 50 mg/m3 or higher. Mottling of tooth enamel may also occur.
In adults, high fluoride exposure over a long time can lead to skeletal
fluorosis with denser bones, joint pain, and a limited range of joint movement.
Although fluoride exposure results in denser bones, the bone appears to be
weaker than normal bone and there may be a greater risk of breaking the bone.
Animal studies:
In animals, exposure to high doses of
fluoride can result in decreased fertility and sperm and testes damage.
Exposure Limits:
•
ACGIH TLV: 2.5 mg[F]/m3 TWA; BEI: 3 mg[F]/g
creatinine
in urine
prior
to end of shift; 10 mg[F]/g creatinine in
urine end of shift
•
OSHA PEL: 3 ppm/2.5 mg[F]/m3 TWA
•
NIOSH REL: 3 ppm/2.5 mg[F]/m3 TWA; 6 ppm/5 mg[F]/m3, 15 min. ceiling limit
•
DFG MAK: 2.5 mg[F]/m3; BAT: 7.0 mg[F]/g creatinine in urine at end of shift;
4.0 mg[F]/g creatinine in urine at the beginning of the next shift.
Respirator:
12.5
mg/m3:
DM (any dust and mist
respirator).
25
mg/m3:
DMXSQ (any dust and
mist respirator except single-use and quarter mask respirators) SA* (any
supplied-air respirator).
62.5mg/m3:
SA:CF (any supplied-air
respirator operated in a continuous-flow mode) PAPRDM* (any powered,
air-purifying respirator with a dust and mist filter).
125 mg/m3:
HiEF* (any air-purifying, fullfacepiece
respirator with a high-efficiency particulate filter) SCBAF (any self-contained
breathing apparatus with a full facepiece) SAF (any suppliedair respirator with
a full facepiece).
Emergency
or Planned Entry into Unknown Concentrations or IDLH Conditions
SCBAF:PD,PP (any self-contained breathing
apparatus that has a full facepiece and is operated in a pressure-demand or
other positivepressure mode) SAF:PD,PP:ASCBA (any suppliedair respirator that
has a full facepiece and is operated in a pressure-demand or other
positive-pressure mode in combination with an auxiliary self-contained
breathing apparatus operated in a pressure-demand or other positive-pressure
mode).
Escape:
HiEF*
(any airpurifying, full-facepiece respirator with a highefficiency particulate
filter) SCBAE (any appropriate escape-type, self-contained breathing
apparatus).
Note:
Substance reported to cause eye irritation or
damage; may require eye protection. *May need acid gas sorbent.
Reactivity:
Aqueous
solution is highly corrosive. Reacts with acids forming hydrogenfluoride;
reacts with caustics and strong oxidizers.
FIRE INFORMATION
Not
flammable. If material or contaminated runoff enters waterways, notify
downstream users of potentially contaminated water.
Hazard Classifications:
Health Hazard (Blue)
. . . . . . . . . . . . . . 3
Flammability (Red)
. . . . . . . . . . . . . . . 0
Reactivity (Yellow)
. . . . . . . . . . . . . . . . 0
FIRST AID:
Move
victim to fresh air. Call emergency medical care. Apply artificial respiration
if victim is not breathing. Do not use mouth-to-mouth method if victim ingested
or inhaled the substance; induce artificial respiration with the aid of a
pocket mask equipped with a one-way valve or other proper respiratory medical
device. Administer oxygen if breathing is difficult. Remove and isolate
contaminated clothing and shoes. In case of contact with substance, immediately
flush skin or eyes with running water for at least 20 minutes. For minor skin
contact, avoid spreading material on unaffected skin. Keep victim warm and
quiet. Effects of exposure (inhalation, ingestion, or skin contact) may be
delayed. Ensure that medical personnel are aware of the material(s) involved,
and take precautions to protect themselves.
ENVIRONMENTAL REGULATIONS
•
Clean Water Act: Section 311 Hazardous Substances/RQ (same as CERCLA).
•
EPCRA Section 304: Reportable Quantity (RQ): CERCLA, 1000 lb (454 kg).
•
California LOL: NPQ