aluminum;trihydrate

Basic Information

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CAS Number

1302-74-5

Molecular Formula

H6Al2O3

Molecular Weight

114.06 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

2054 ºC

Boiling Point

2.980℃

Refractive Index

1.771

SMILES

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O=[Al]O[Al]=O

InChI

InChI=1S/2Al.3H2O/h;;3*1H2

InChIKey

MTYZVIUPSZCBML-UHFFFAOYSA-N

LogP

-4.841899999999999

Topological Polar Surface Area

94.5 Å²

Hydrogen Bond Donor/Acceptor

6 / 3

Complexity

34.2

Safety Information

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Hazard Class

Class 3 Class 3

Sensitiveness

Sensitive to moisture

Synonyms & References

English

oxo(oxoalumanyloxy)alumane
Aluminum oxide, catalyst support, low surface area
Aluminum oxide, calcined, insulating powder
Aluminum Oxide (Activated, Basic, Brockmann I)
NK 63
KU 5-3
Aluminum oxide, acidic, HPLC Flash Grade
Aluminum oxide, primarily alpha-phase, fused, 200-325 mesh, >=99%
Aluminum oxide, SAJ special grade, >=98.0%
Aluminum oxide 90 active basic
Alumina, NIST(R) SRM(R) 742, reference point
Aluminum oxide, powder, primarily alpha phase, <=10 mum avg. part. size, 99.5% trace metals basis
Aluminum oxide, 99.3%, < 325 mesh, d 50 5 - 7 micron
TWNQGVIAIRXVLR-UHFFFAOYSA-N
Emery
Corundum (Al2O3)
Aluminum oxide 90 active neutral, (activity stage I) for column chromatography 0.063-0.200 mm (70 - 230 mesh ASTM)
Aluminum Oxide Powder, 99.5%
gamma-Alumina, 1/16' spheres
Aluminum oxide, polishing compound, 2oz (57g)
Aluminum oxide, fused, powder, primarily alpha-phase, 100-200 mesh
Aluminum oxide, Puratronic?
Aluminum oxide, for chromatography
Aluminum oxide, neutral, HPLC Flash Grade
Inhibitor removers, Prepacked column for removing hydroquinone and monomethyl ether hydroquinone
Aluminum oxide, Type WN-6 Neutral, Activity Grade Super I
gamma-Alumina, low soda
Aluminum oxide (alpha) powder, 99.97% Nano
Aluminum oxide, single crystal substrate, <0001>
Aluminum oxide, calcined, powder, primarily alpha-phase, 100-325 mesh
Aluminum oxide, Grade H-152, 1/8 in.

MDL Number

MFCD00003424

Customs Code

2818200000

FAQ

What are the physical and chemical properties of aluminum trihydrate (CAS: 1302-74-5)?

Aluminum trihydrate (CAS: 1302-74-5) is a white, crystalline powder with a molecular weight of approximately 102.09 g/mol. It is poorly soluble in water but soluble in acids. Chemically, it is highly reactive with acids to form aluminum salts and water. It has a high melting point of about 200°C and is commonly used in pharmaceuticals, cosmetics, and as a fire retardant due to its ability to decompose exothermically and release water.

How is aluminum trihydrate (CAS: 1302-74-5) typically synthesized?

Aluminum trihydrate is typically synthesized by the hydrolysis of aluminum salts in an alkaline medium. Common methods include the use of aluminum sulfate and an excess of sodium hydroxide. The process involves the gradual addition of the base to the salt solution, leading to the formation of the hydrate as a precipitate. The product is then usually dried and calcined to remove water from the structure, yielding aluminum oxide. The synthesis is influenced by reaction conditions such as pH, temperature, and the concentration of reactants.

What industries use aluminum trihydrate (CAS: 1302-74-5)?

Aluminum trihydrate (CAS: 1302-74-5) is widely used in various industries due to its unique properties. In pharmaceuticals, it is used as an antacid and as a binding agent in tablets. In cosmetics, it serves as a drying agent and is often included in face powders and creams. Additionally, it finds applications in the textile industry as a flame retardant, in the polymer industry as a filler, and in the electronics industry for its insulating and stabilizing properties.

What precautions should be taken when handling aluminum trihydrate (CAS: 1302-74-5)?

When handling aluminum trihydrate (CAS: 1302-74-5), it is crucial to take appropriate safety measures. Wear protective gloves, safety goggles, and a lab coat to protect against skin and eye contact. Store the compound in a cool, dry place away from direct sunlight. If contact occurs, wash the affected area with water and seek medical attention if necessary. In case of a spill, use absorbent materials to contain the spill and dispose of the waste according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed guidelines on handling and storage.