# NIOSH Pocket Guide to Chemical Hazards
Sodium aluminum fluoride (as F) | CAS 15096-52-3
Na3AlF6 | RTECS WA9625000
Synonyms & Trade Names Cryocide, Cryodust, Cryolite, Sodium hexafluoroaluminate | DOT ID & Guide
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).]
IDLH 250 mg/m3 (as F) | Conversion
Physical Description Colorless to dark odorless solid. [pesticide] [Note: Loses color on heating.]
MW: 209.9 | BP: Decomposes | MLT: 1832°F | Sol: 0.04%
VP: 0 mmHg (approx) | IP: NA |  | Sp.Gr: 2.90
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Solid
Incompatibilities & Reactivities Strong oxidizers
Measurement Methods NIOSH 7902; OSHA ID110
Personal Protection & Sanitation 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 dust and mist respirator Up to 25 mg/m3: (APF = 10) Any dust and mist respirator except single-use and quarter-mask respirators*/(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 dust and mist filter*+ Up to 125 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter+/(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 a high-efficiency particulate filter+/Any appropriate escape-type, self-contained breathing apparatus +Note: May need acid gas sorbent
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
See also: INTRODUCTION