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Sodium fluoride (as F)

Synonyms & Trade Names
Floridine, Sodium monofluoride
CAS No.
7681-49-4
RTECS No.
WB0350000
DOT ID & Guide
1690 154
Formula
NaF
Conversion
IDLH
250 mg/m3 (as F)
See: fluoride
Exposure Limits
NIOSH REL
TWA 2.5 mg/m3 [*Note: The REL also applies to other inorganic, solid fluorides (as F).]
OSHA PEL
TWA 2.5 mg/m3 [*Note: The PEL also applies to other inorganic, solid fluorides (as F).]
Measurement Methods
NIOSH 7902 , 7906;
OSHA ID110
See: NMAM or OSHA Methods
Physical Description
Odorless, white powder or colorless crystals. [Note: Pesticide grade is often dyed blue.]
Molecular Weight
42.0
Boiling Point
3099°F
Melting Point
1819°F
Solubility
4%
Vapor Pressure
0 mmHg (approx)
Ionization Potential
NA
Specific Gravity
2.78
Flash Point
NA
Upper Exposive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
Strong oxidizers
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, respiratory system; nausea, abdominal pain, diarrhea; salivation, thirst, sweating; stiff spine; dermatitis; calcification of ligaments of ribs, pelvis
Target Organs
Eyes, skin, respiratory system, central nervous system, skeleton, kidneys
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Fresh air
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH/OSHA

Up to 12.5 mg/m3:
(APF = 5) Any quarter-mask respirator.
Click here for information on selection of N, R, or P filters.

Up to 25 mg/m3:
(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100.
Click here for information on selection of N, R, or P filters.*
(APF = 10) Any supplied-air respirator*

Up to 62.5 mg/m3:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.*+

Up to 125 mg/m3:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.+
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Up to 250 mg/m3:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air 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 positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.+
Any appropriate escape-type, self-contained breathing apparatus
+Note: May need acid gas sorbent

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0951

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