Basic information Uses Preparation Safety Supplier Related
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Aluminium sulfate octadecahydrate

Basic information Uses Preparation Safety Supplier Related

Aluminium sulfate octadecahydrate Basic information

Product Name:
Aluminium sulfate octadecahydrate
Synonyms:
  • PICKLE ALUM
  • PATENT ALUM
  • CAKE ALUM
  • ALUMINUM SULFATE OCTADECAHYDRATE
  • ALUMINUM SULFATE - 18 H2O
  • ALUMINUM SULFATE, 18-HYDRATE
  • ALUMINUM SULFATE HEXADECAHYDRATE
  • ALUMINUM SULFATE, HYDRATED
CAS:
7784-31-8
MF:
Al2H36O30S3
MW:
666.43
EINECS:
616-524-3
Product Categories:
  • ACS GradeChemical Synthesis
  • Aluminum
  • Catalysis and Inorganic Chemistry
  • Essential Chemicals
  • Routine Reagents
  • metal sulfate
Mol File:
7784-31-8.mol
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Aluminium sulfate octadecahydrate Chemical Properties

Melting point:
86 °C
Density 
1,69 g/cm3
storage temp. 
Store at room temperature.
solubility 
364g/l
form 
Powder/Solid
Specific Gravity
1.69
color 
White
PH
2.5-4.0 (20g/l, H2O, 20℃)
Water Solubility 
Soluble
Sensitive 
moisture sensitive
CAS DataBase Reference
7784-31-8(CAS DataBase Reference)
EPA Substance Registry System
Sulfuric acid, aluminum salt (3:2), octadecahydrate(7784-31-8)
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Safety Information

Hazard Codes 
N-Xn,Xi,N,Xn
Risk Statements 
51/53-41-36/37/38-22
Safety Statements 
61-37/39-29-26-39
RIDADR 
UN3260 - class 8 - PG 3 - RQ - Corrosive solid, acidic, inorganic, n.o.s., HI: all
WGK Germany 
1
RTECS 
WS5697000
HS Code 
2833 22 00
Toxicity
LD50 orally in Rabbit: > 5000 mg/kg

MSDS

  • Language:English Provider:ACROS
  • Language:English Provider:ALFA
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Aluminium sulfate octadecahydrate Usage And Synthesis

Uses

The compound is used heavily in the paper industry. In its acidic solution form, which contains a slight excess of H2SO4, it is used for pH control of pulp slurries, treatment of process waters, setting of dyes and also for precipitating dissolved resin for setting the size on the fibers. In slight basic form (containing a slight excess of Al2O3), it is used for treatment of drinking and waste waters (e.g., for reducing phosphorus content). Other major applications include dyeing, tanning, catalysts, modification of concrete, and in the manufacture of various chemicals and pharmaceutical products.

Preparation

Prepared from bauxite, kaolin or aluminum compounds on reaction with H2SO4. The insoluble silicic acid is filtered out; the hydrate salt forms on crystallization.

Chemical Properties

white crystalline powder and chunks

Uses

Aluminium sulfate octadecahydrate is a preservative, the inclusive term for several inum-type compounds such as inum sulfate and inum potassium sulfate. It is used with edta to prevent discoloration of potatoes and to maintain the firmness of shrimp packs. It is also used in pickles and pickle relish.

Definition

ChEBI: A hydrate resulting from the the formal combination of anhydrous aluminium sulfate with approximately 18 mol eq. of water. The commercial product usually contains 5-10% less water than theory. It is one of the commonest hydrates of aluminium sulfate.

Aluminium sulfate octadecahydrate Preparation Products And Raw materials

Raw materials

Aluminium sulfate octadecahydrateSupplier

J & K SCIENTIFIC LTD.
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400-666-7788 +86-10-82848833
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jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
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+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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sh@meryer.com
Beijing Ouhe Technology Co., Ltd
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+86-10-4006331231;+86-10-51280831;+86-10-82967028
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sales@ouhechem.com
Adamas Reagent, Ltd.
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400-600-9262
Email
bxy@titansci.com
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com