Aluminum sodium sulfate
- Aluminum sodium bis(sulfate)
- Sodium aluminum sulfate
- Soda alum
- Sodium alum
- Sodium aluminum sulfate
A colorless crystalline solid.
Textiles (mordant, waterproofing), dry colors, ceramics, tanning, paper size precipitant, matches, inks, sugar refining, water purification, confectionery, baking powder, food additive, engraving.
Registry Numbers and Inventories.
Melting point, °C
1.675 g/cm3 (20 C)
Solubility in water
110 g anhydrous salt/100 cc of @ 15 C
Hazards and Protection.
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.
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.
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
OSHA: PEL (8 h TWA): 15 mg/m3.
Aluminum accumulates in brain tissue and is a neurotoxic agent. Ataxia and seizures have been reported following ingestions and in patients with compromised renal function receiving bladder irrigations. Mental status changes, including obtundation, lethargy and confusion, may occur.
Ingestions of small amounts of alum may cause dryness and a puckering sensation of mucous membranes in the mouth and throat. Rectal enemas containing 1% ammonium alum caused mild cramping and nausea in the majority of patients.
Inhalation is irritating and may cause airway congestion. Symptoms are usually transient. Respiratory depression has been reported in patients with severe aluminum encephalopathy.
Concentrated solutions may irritate abraded skin.
Dilution: immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 4 ounces/120 ml in a child). Do not induce vomiting.
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.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
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.
Std. Transport #