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

Vapor Pressure

0 mmHg (approx)

Ionization Potential

Specific Gravity

2.78

Flash Point

Upper Explosive Limit

Lower Explosive Limit

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

Sodium fluoride (as F)

NIOSH REL

OSHA PEL

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