Sodium aluminum fluoride

  • Sodium hexafluoroaluminate
  • Cryocide
  • Cryodust
  • Cryolite
  • Trisodium hexafluoroaluminate
Formula
Na3AlF6
Structure
Description
Monoclinic crystals (natural product); amorphous powder (synthetic odorless.
Uses
Stomach and contact insecticide.

Registry Numbers and Inventories.
CAS
15096-52-3
EC (EINECS/ELINCS)
239-148-8
EC Index Number
009-016-00-2
EC Class
Toxic; Harmful; Dangerous for the Environment
RTECS
WA9625000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
Merck
12,2673
Beilstein/Gmelin
45203 (G)
EPA OPP
75101
Swiss Giftliste 1
G-3854
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
AlF6Na3
Formula mass
209.94
Melting point, °C
1000
Density
2.90 g/cm3 (20 C)
Solubility in water
400 mg/L
Heat of fusion
106.7 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate eye protection and protective clothing to prevent skin and eye contact.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
More stable than fluosilicate with respect to hydrolysis decomp by boiling with aqueous alkali hydroxides or aqueous calcium hydroxide.
Incompatibilities
Strong oxidizing agents.
Decomposition
When heated to decomposition, emits highly toxic fumes of hydrogen fluoride and disodium oxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Health.
Exposure limit(s)
NIOSH REL*: TWA 2.5 mg/m3 OSHA PEL*: TWA 2.5 mg/m3 [*Note: REL and PEL also apply to other inorganic, solid fluorides (as F).] IDLH 250 mg/m3 (as F)
Poison_Class
3
Exposure effects
Hyperactive reflexes, painful muscle spasms, weakness and tetanic contractures may be noted due to fluoride induced hypocalcemia. Prenatal fluoride supplementation (2.2 mg NaF or 1 mg fluoride daily) during the last two trimesters of pregnancy has been reported to be safe.
   Ingestion
Epigastric pain, nausea, dysphagia, salivation, hematemesis, and diarrhea may be noted. These effects may be delayed for several hours following exposure. Gi symptoms are noted when 3 to 5 mg/kg of fluoride are ingested.
   Inhalation
Respirations are first stimulated then depressed. Death is usually from respiratory paralysis. Following inhalation, coughing and choking may be noted.
   Skin
Urticaria and pruritus have been reported following exposure to fluoride.

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.