Attapulgite

  • Attaclay
  • Attacote
  • Attagel
  • Attapulgus clay
  • Attasorb
  • Diluex
Formula
(Mg.Al)5SI8O22(OH)4 . 4H2O
Description
Gray to yellow solid.
Uses
Used in fertilizer production, including conditioning of fertilizer products, and as a suspending agent in suspension fertilizers.

Registry Numbers and Inventories.
CAS
12174-11-7x
RTECS
RT6400000
RTECS class
Tumorigen; Natural Product
UN (DOT)
1557
Beilstein/Gmelin
1398743 (G)

Properties.
Formula
(Mg,Al)5SI8O22(OH)4.4H2O

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 protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.

Fire.
Fire fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Water spray, fog or regular foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
Containers may explode when heated.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Carcinogin
I-2B, CP65
Exposure effects
   Ingestion
Bentonite has been used therapeutically as a bulk laxative, due to its ability to adsorb water and to swell into a homogenous mass. Ingestion without adequate liquids may result in intestinal obstruction.
   Inhalation
Chronic inhalation exposure to similar clays, such as fuller's earth, has been shown to cause pneumoconiosis without pathological changes of silicosis. Symptoms usually appear after many years of exposure.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact.
   Eyes
See Skin.

First aid
 
   Ingestion
Dilution: immediately dilute with 4 to 8 ounces (120 to 240 ml) of water (not to exceed 15 ml/kg in a child). Encourage fluid intake. Monitor for evidence of constipation and intestinal obstruction.
   Inhalation
Acute - acute effects have not been described. Refer to the document on talc for more information.
   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.
UN number
1557
Response guide
Hazard class
6.1
Packing Group
I; II; III