Aluminum hydroxide CAS #21645-51-2

CAS Number: 21645-51-2
Chemical Formula: Al(OH)3
Appearance: White crystalline powder
HS Code: 28183000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Products Description of Aluminum hydroxide CAS #21645-51-2

Aluminum hydroxide (Aluminum hydroxide), chemical components Al(OH)3, is a white solid, insoluble in water, soluble in acid or alkali, and is a regular amphoteric hydroxide. After being heated and dehydrated in the air, it can be modified into aluminum oxide, which is of fantastic magnitude to the manufacturing of aluminum oxide. Aluminum hydroxide can react with acid to produce salt and water and with sturdy alkali to produce chemicalbook salt and water, so it is an amphoteric hydroxide. Because it has a sure acidity, it can additionally be known as aluminic acid (H3AlO3).

Parameters

Melting point	300℃
Boiling point	2980℃[at 101 325 Pa]
bulk density	~90g/100 mL
density	2.42 g/cm3 at 20 °C
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
Specific Gravity	2.42
color	White
PH	8-9 (100g/l, H2O, 20℃)(slurry)
Odor	Odorless
PH Range	>7
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)

Safety Information

Hazard Codes	Xi
Risk Statements	36
Safety Statements	26-36
WGK Germany	-
RTECS	BD0940000
TSCA	Yes
HS Code	28183000
Hazardous Substances Data	21645-51-2(Hazardous Substances Data)
Toxicity	TDLo oral in child: 79gm/kg/2Y-I

Product Application of Aluminum hydroxide CAS #21645-51-2

As absorbent, in chromatography, manufacturing of glass, paper, inks, ceramics, lubricants, cosmeticsAluminum hydroxide is used as a desiccant powder, filler in paper, plastics, rubber and cosmetics. It is used as a smoke suppressant and mordant dye. It is additionally used in capsules as antacid and antihyperphosphatemic. It is additionally used as a Claus catalyst assist for water-resistant fabrics. It is an vital beginning fabric for the coaching of different aluminum compounds, calcined alumina, aluminum sulfate, polyaluminum chloride, zeolites, sodium aluminate, activated alumina and aluminum nitrate. In addition, it is used as a fireplace retardant.

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