Aluminum hydroxide#21645-51-2

Using advanced production processes and automated control technologies, key process parameters are monitored and recorded in real time to ensure that the production process is stable, controllable and traceable.

PRODUCT DESCRIPTION

Aluminum Hydroxide CAS#21645-51-2

Aluminum hydroxide, insoluble in water, soluble in dilute mineral acids and alkali hydroxides (4 % suspension in water), white, amorphous powder. For other relevant properties and production, see→Aluminum Oxide, Chap. 1.1. Available as Al(OH)3·nH2O (algedrate) and algedrate hexitol complex.

Product Name:

Aluminum hydroxide

Synonyms:

alcoac30bf;alcoac330;alcoac333;alugel;alumigel;aluminahydrated;aluminicacid;Aluminiumhydrate

CAS:

21645-51-2

MF:

AlH3O3

MW:

78

EINECS:

244-492-7

Product Categories:

INORGANIC & ORGANIC CHEMICALS;PHARMACEUTICALS;Inorganics;Essential Chemicals;Reagent Grade;Routine Reagents;metal hydroxide

Mol File:

21645-51-2.mol



Aluminum hydroxide Chemical Properties

Melting point

300℃

Boiling point

2980℃[at 101 325 Pa]

density

2.42 g/cm3 at 20 °C

bulk density

~90g/100 mL

vapor pressure

<0.1 hPa (20 °C)

refractive index

Average refractive index: 1.57-1.59

storage temp.

Store at +5°C to +30°C.

solubility

0.0015g/l

form

colloidal suspension

color

White

Specific Gravity

2.42

Odor

Odorless

PH Range

>7

PH

8-9 (100g/l, H2O, 20℃)(slurry)

Water Solubility

insoluble

Crystal Structure

Monoclinic

Merck

14,342

Solubility Product Constant (Ksp)

pKsp: 32.89

Exposure limits

ACGIH: TWA 1 mg/m3

Dielectric constant

2.2(Ambient)

Stability:

Stable. Incompatible with strong bases.

LogP

-1.380 (est)

CAS DataBase Reference

21645-51-2(CAS DataBase Reference)

EPA Substance Registry System

Aluminum hydroxide (21645-51-2)

Product Usage

Pharmaceutical field: As an antacid, it can neutralize stomach acid, and is used to treat diseases such as excessive stomach acid and gastric ulcer, and relieve stomach discomfort.

Flame retardant field: It is a commonly used inorganic flame retardant, added to plastics, rubber, textiles and other materials, absorb heat when heat decomposition, release water vapor, play a flame retardant, smoke suppression role, improve the fire performance of the material.

Chemical raw materials: It is an important raw material for the preparation of aluminum oxide, aluminum sulfate, polyaluminum chloride and other aluminum compounds.

Other applications: Used as a rubbing agent in toothpaste to help clean teeth; It is used in the paper industry to improve the water resistance and printing performance of paper. Used as an additive in cosmetics, it has the function of absorbing oil and regulating pH value.

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