Sodium aluminosilicate (HCID 72941443)

Overview

Sodium aluminosilicate is a fine white powder. Many ordinary rocks (feldspars) are aluminosilicates. Aluminosilicates with more open three-dimensional structures than the feldspars are called zeolites. The openings in zeolites appear as polyhedral cavities connected by tunnels. Zeolites act as catalysts by absorbing small molecules in their interior cavities and holding them in proximity so that reaction among them occurs sooner.

Names & identifiers

Preferred name: Sodium aluminosilicate
IUPAC: dialuminum;disodium;hexakis(oxygen(2-));silicon(4+);hydrate

Names & synonyms

DecalsoZeolexDecalso FAlusil ETVulkasil A 1Zeolex 23AZeolex 23PZeolex 25Zeolex 35Sodium silicoaluminateZeolex 100Sasil

Show more names

Type A ZeoliteAmsr 3Degussa P820Valfor zeolite Na-a058TS43PSMAlusil SD533Zeolex 330Silicic acid, aluminum sodium salt

Database identifiers

CAS: 1344-00-9
PubChem CID: 72941443
UNII: 058TS43PSM
EC Number: 215-684-8

Properties

Computed structural properties

Topological polar surface area: 7 Å²
Hydrogen bond donors: 1
Hydrogen bond acceptors: 7
Rotatable bonds: 0
Heavy atoms: 12
Formal charge: 0
Complexity: 0

Experimental & physicochemical properties

Chemical ClassesMetals -> Metals, Inorganic Compounds

CosmeticsAbrasive; Viscosity controlling; Bulking

pH · 2 items

Between 6,5 and 11,5 (5 % slurry)

6.5-10.5 (20% SLURRY)

OdorODORLESS

TasteTASTELESS

Food AdditivesANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, FORMULATION AID, HUMECTANT -> FDA Substance added to food

Safety & regulation

GHS classification

GHS Classification · 3 items

This chemical does not meet GHS hazard criteria for 97.4% (559 of 574) of all reports.

Not Classified

Aggregated GHS information provided per 574 reports by companies from 6 notifications to the ECHA C&L Inventory.

Hazard information

Regulatory Information · 5 items

Chemical: Aluminosilicic acid, sodium salt

Regulation (EC) No 1831/2003 (amended)

Silicic acid, aluminum sodium salt is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicic acid, aluminum sodium salt are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 01-09-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/15116

Silicic acid, aluminum sodium salt: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - Aluminosilicic acid, sodium salt: Human health tier I assessment

Health HazardsACUTE/CHRONIC HAZARDS: Local irritant, low toxicity. (NTP, 1992)

Hazards SummaryA skin, eye, and mucous membrane irritant; [HSDB] A local irritant; [CAMEO] An irritant; [MSDSonline] See Aluminum.

FDA Requirements · 2 items

121.101; LIMITATIONS: GRAS, ANTICAKING AGENT, UP TO 2%.

LIMITATIONS: 2% MAX IN SALT; 2% MAX IN SEASONING; 1% MAX IN SUGAR; 5% MAX IN BAKING POWDER. /SODIUM SILICOALUMINATE, PRECIPITATED HYDRATED/

Reactive GroupSalts, Basic

Safety & protection

First Aid · 1 item

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Nonfire Spill Response · 1 item

SMALL SPILLS AND LEAKAGE: If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Personal Protective Equipment (PPE) · 1 item

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Toxicology

InteractionsNAAL SILICATES BOUND TOXIC CU, HG, & CD SALTS & DECREASED THEIR TOXICITY TO FISH & DAPHNIA BY >10-FOLD.

Environmental BiodegradationSODIUM ALUMINOSILICATE WAS SHOWN BY STUDIES WITH IN-LABELING & NEUTRON ACTIVATION ANALYSIS TO HAVE NO ADVERSE EFFECT ON THE CAPACITY OF TRICKLING FILTER OR ACTIVATED SLUDGE PLANTS.

Non-Human Toxicity Excerpts · 2 items

NAAL SILICATES HAD VERY LOW TOXICITY TO ALGAE, MICROORGANISMS, DAPHNIA, FISH, TUBIFLEX, & MUSSELS EVEN @ VERY HIGH CONCN OF 250 MG/L HAD NO ACUTE TOXIC EFFECT ON ANIMALS.

Sodium aluminosilicate (SAS) was tested for mutagenicity in the Salmonella/microsome preincubation assay using a protocol approved by contractor of the National Toxicology Program. SAS was tested over a wide range of doses (0, 100, 333, 1000, 3333, and 4,000 ug/plate) in four Salmonella typhimurium strains (TA98, TA100, TA1535, and TA1537) in the presence and absence of Aroclor-induced rat or hamster liver S9. SAS was negative in these tests and the highest ineffective dose level tested (not causing the formation of a precipitate) in any Salmonella tester strain was 1000 ug/plate.

Environmental Water Concentrations · 1 item

RATIOS OF OBSERVED NO-EFFECT CONCN OF ZEOLITE ON AQUATIC LIFE TO SURFACE WATER CONCN RANGE FROM >250->1000, INDICATING THAT THE PROPOSED USE AS A MONOPHOSPHATE BUILDER FOR DETERGENTS WOULD RESULT IN NO SIGNIFICANT ENVIRONMENTAL IMPACT AT EXPECTED USAGE LEVELS.

Toxicity DataLC (rat) > 140 mg/m3/4h

Regulatory information

FDA Requirements · 2 items

121.101; LIMITATIONS: GRAS, ANTICAKING AGENT, UP TO 2%.

LIMITATIONS: 2% MAX IN SALT; 2% MAX IN SEASONING; 1% MAX IN SUGAR; 5% MAX IN BAKING POWDER. /SODIUM SILICOALUMINATE, PRECIPITATED HYDRATED/

State Drinking Water Standards(CA) CALIFORNIA 1000 ug/l /Aluminum/

State Drinking Water Guidelines · 3 items

(AZ) ARIZONA 73 ug/l /Aluminum/

(CA) CALIFORNIA 200 ug/l /Aluminum/

(ME) MAINE 1430 ug/l /Aluminum/

Federal Drinking Water GuidelinesEPA 50-200 ug/l /Aluminum/

Chemistry & industry

Pharmacology

Absorption, Distribution and Excretion · 1 item

THE RATE & EXTENT OF URINARY EXCRETION OF SILICON WAS DETERMINED IN RATS AFTER ORAL ADMIN OF FOOD-GRADE SODIUM ALUMINOSILICATE. URINARY SILICON EXCRETION INCREASED RAPIDLY AFTER DOSING, & PEAK EXCRETION RATES OCCURRED WITHIN 24 HR IN ALL TEST GROUPS.

Uses & manufacturing

Uses · 4 items

Used as food additive, anticaking agent, and in dentifrice; [HSDB] Natural form found in feldspars and zeolites; [CAMEO] Used in the production of leather, polymers, textiles, pulp & paper, paints & lacquers, cleaners & disinfectants, pesticides, food additives, and cosmetics; [IUCLID]

Pulp and Paper Processing [Category: Industry]

FOOD ADDITIVE, ANTICAKING AGENT

DENTIFRICE

U.S. Production2023: 10,000,000 - <50,000,000 lb

Consumer UsesProcessing aids not otherwise specified

Industry UsesNot Known or Reasonably Ascertainable

Formulations/PreparationsGRADES: TECHNICAL; FCC.

Household ProductsInformation on 129 consumer products that contain Sodium aluminosilicate in the following categories is provided: