Uses Preparation
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Aluminium sulfate octadecahydrate

Uses Preparation
Product Name
Aluminium sulfate octadecahydrate
CAS No.
7784-31-8
Chemical Name
Aluminium sulfate octadecahydrate
Synonyms
ALUM;CAKE ALUM;PICKLE ALUM;PATENT ALUM;octadecahydrate;Trade termforalum;Aluminum triethide;AluminiumSulphateGr;AluminiumSulphateUsp;ALUMINUM SULFATE XTL
CBNumber
CB5435191
Molecular Formula
Al2H36O30S3
Formula Weight
666.43
MOL File
7784-31-8.mol
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Aluminium sulfate octadecahydrate Property

Melting point:
86 °C
Density 
1,69 g/cm3
storage temp. 
Sealed in dry,Room Temperature
solubility 
364g/l
form 
Powder/Solid
Specific Gravity
1.69
color 
White
PH
2.5-4.0 (20g/l, H2O, 20℃)
PH Range
3 - 4
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

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H290May be corrosive to metals

H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
11044
Product name
Aluminum sulfate octadecahydrate
Purity
puriss., meets analytical specification of Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis
Packaging
1kg
Price
$119
Updated
2024/03/01
Sigma-Aldrich
Product number
11044
Product name
Aluminum sulfate octadecahydrate
Purity
puriss., meets analytical specification of Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis
Packaging
6x1kg
Price
$508
Updated
2024/03/01
Sigma-Aldrich
Product number
AX0735
Product name
Aluminum Sulfate, Octadecahydrate
Purity
Meets ACS Specifications GR ACS
Packaging
500g
Price
$265
Updated
2022/05/15
Sigma-Aldrich
Product number
AX0745
Product name
Aluminum Sulfate, Octadecahydrate
Packaging
5KG
Price
$449
Updated
2022/05/15
Sigma-Aldrich
Product number
AX0735
Product name
Aluminum Sulfate, Octadecahydrate
Purity
Meets ACS Specifications GR ACS
Packaging
2.5kg
Price
$1040
Updated
2022/05/15
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Aluminium sulfate octadecahydrate Chemical Properties,Usage,Production

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

Physical properties

White crystal; sweet taste; density 1.62 g/cm3: decomposes at 86.5°C; soluble in water.

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

Preparation Products

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Aluminium sulfate octadecahydrate Suppliers

Beijing CommScope Huiwei Technology Co., Ltd
Tel
010-67777729 18810111057
Fax
010-67777729
Email
2462714774@qq.com
Country
China
ProdList
62
Advantage
58
Nantong Runfeng Petrochemical Co., Ltd
Tel
0513-66017690 13912270238
Fax
0513-55085866
Email
2143087160@qq.com
Country
China
ProdList
2412
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8418
Advantage
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Beijing Ouhe Technology Co., Ltd
Tel
010-82967028 13552068683
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12390
Advantage
60
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
chenyj@titansci.com
Country
China
ProdList
14103
Advantage
59
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9815
Advantage
79
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View Lastest Price from Aluminium sulfate octadecahydrate manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Aluminium sulfate octadecahydrateLEATE 7784-31-8
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-13
Hebei Chuanghai Biotechnology Co,.LTD
Product
Aluminium sulfate octadecahydrate 7784-31-8
Price
US $1.00/KG
Min. Order
10KG
Purity
99 %
Supply Ability
10000kg
Release date
2024-08-20
Shaanxi Dideu Medichem Co. Ltd
Product
Aluminium sulfate octadecahydrate 7784-31-8
Price
US $0.10/KG
Min. Order
1KG
Purity
98.0%
Supply Ability
10
Release date
2024-07-06

7784-31-8, Aluminium sulfate octadecahydrateRelated Search:


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