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Aluminium potassium sulfate dodecahydrate

Product Name
Aluminium potassium sulfate dodecahydrate
CAS No.
7784-24-9
Chemical Name
Aluminium potassium sulfate dodecahydrate
Synonyms
POTASSIUM ALUM;ALUM;ALUMINUM POTASSIUM SULFATE;ALUMINIUM POTASSIUM SULFATE;ALUMINUM POTASSIUM SULFATE DODECAHYDRATE;POTASSIUM ALUMINUM SULFATE DODECAHYDRATE;Aluminum Potassium Sulfate Hydrate;POTA;kalinite;AlH8KO5S
CBNumber
CB0314947
Molecular Formula
AlH8KO5S
Formula Weight
186.2
MOL File
7784-24-9.mol
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Aluminium potassium sulfate dodecahydrate Property

Melting point:
92 °C(lit.)
Boiling point:
200°C
Density 
1.757 g/mL at 25 °C(lit.)
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: soluble0.5M, clear, colorless
form 
Solid
Specific Gravity
1.757
color 
White
Odor
Odorless
PH Range
3.3
PH
3.0-3.5 (25℃, 50mg/mL in H2O)
Water Solubility 
140 G/L (20 ºC)
Merck 
14,360
Stability:
Stable. Incompatible with steel, aluminium, copper, zinc, bases, strong oxidizing agents.
LogP
-1.031 (est)
CAS DataBase Reference
7784-24-9(CAS DataBase Reference)
NIST Chemistry Reference
potassium aluminum sulfate dodecahydrate(7784-24-9)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
36/38-22-36/37/38-21/22
Safety Statements 
22-24/25-37/39-26-36-20-13-2
WGK Germany 
3
RTECS 
WS5690000
TSCA 
Yes
HS Code 
28332990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

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

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
237086
Product name
Aluminum potassium sulfate dodecahydrate
Purity
ACS reagent, ≥98%
Packaging
100g
Price
$56.5
Updated
2024/03/01
Sigma-Aldrich
Product number
237086
Product name
Aluminum potassium sulfate dodecahydrate
Purity
ACS reagent, ≥98%
Packaging
2.5kg
Price
$544
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01047
Product name
Aluminium potassium sulfate dodecahydrate
Purity
for analysis EMSURE? ACS,Reag. Ph Eur
Packaging
1kg
Price
$249
Updated
2024/03/01
Sigma-Aldrich
Product number
1.01047
Product name
Aluminium potassium sulfate dodecahydrate
Purity
for analysis EMSURE? ACS,Reag. Ph Eur
Packaging
25kg
Price
$3150
Updated
2024/03/01
Alfa Aesar
Product number
036288
Product name
Aluminum potassium sulfate dodecahydrate, ACS, 98.0-102.0%
Packaging
500g
Price
$79.5
Updated
2024/03/01
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Aluminium potassium sulfate dodecahydrate Chemical Properties,Usage,Production

Chemical Properties

white to colourless crystals

Chemical Properties

Aluminum is the most commonly available element in homes and workplaces. Aluminum is readily available for human ingestion through the use of food additives, antacids, buffered aspirin, astringents, nasal sprays, and antiperspirants; from drinking water; from automobile exhaust and tobacco smoke; and from using aluminum foil, aluminum cookware, cans, ceramics, and fi reworks. Workers who are at risk for toxicity are those in refi neries, foundries and also welders and grinders.

Chemical Properties

The PhEur 6.0 describes potassium alum as a granular powder, or colorless, transparent, crystalline masses. The JP XV describes it as colorless or white crystals or powder. Potassium alum is odorless and has a slightly sweet, strongly astringent taste.

Uses

Buffer; floccculating reagent.

Uses

Aluminium potassium sulfate dodecahydrate is a white crystal that is soluble in water. It is made by roasting alunite in a furnace and then harvesting the product by crystallization. Aluminium potassium sulfate dodecahydrate was used to harden gelatin emulsions by introduction, by bathing the exposed plates prior to development, or by use in the fixing bath. Mixed with citric or other acids, it was also used as a clearing bath to remove developer stains in negatives.

Uses

potassium alum (alum) is a cosmetic astringent.

Production Methods

Potassium alum is manufactured by treating bauxite with sulfuric acid and then potassium sulfate. Alternatively, aluminum sulfate is reacted with potassium sulfate.

Definition

A group of double salts withthe formula A2SO4.B2(SO4)3.24H2O,where A is a monovalent metal and Ba trivalent metal. The original examplecontains potassium and aluminium(called potash alum orsimply alum); its formula is oftenwritten AlK(SO4)2.12H2O (aluminiumpotassium sulphate-12-water). Ammoniumalum is AlNH4(SO4)2.12H2O,chrome alum is KCr(SO4)2.12H2O, etc.The alums are isomorphous and canbe made by dissolving equivalentamounts of the two salts in waterand recrystallizing.

Definition

ChEBI: A hydrate resulting from the the formal combination of anhydrous potassium aluminium sulfate with 12 mol eq. of water.

General Description

Aluminum potassium sulfate dodecahydrate is an inorganic sulfate salt of aluminum and potassium. Linear growth rates of (100), (111) and (110) faces of its crystals have been investigated.

Health Hazard

Prolonged periods of exposure to aluminum and dust cause symptoms of toxicity that include, but are not limited to, coughing, wheezing, shortness of breath, memory loss, learning diffi culty, loss of coordination, disorientation, mental confusion, colic, heartburn, fl atulence, and headaches. Chronic exposures to alumina dust cause irritation to the eyes,

Pharmaceutical Applications

Potassium alum precipitates proteins and is a powerful astringent. The ability to precipitate proteins is utilized in the manufacture of vaccines, where purified proteins are coprecipitated with and adsorbed onto potassium alum.
Potassium alum is often included in preparations used as mouthwashes or gargles and in dermatological preparations, and it may be used as a topical hemostatic, either as a solid or as a solution. Intravesical instillation of potassium alum, typically as a 1% solution, has been used for hemorrhagic cystitis.

Safety

Potassium alum is often included in preparations used as mouthwashes or gargles and in dermatological preparations.
Large doses of potassium alum act as an irritant and may be corrosive; gum necrosis and gastrointestinal hemorrhage have occurred. Acute encephalopathy has been reported following bladder irrigation with alum solutions in the treatment of bladder hemorrhage. Anecdotal evidence suggests that this practice should be avoided for patients with renal insufficiency.

storage

Store in a cool, dry place in tightly closed containers. Stable under normal temperatures and pressures. When kept for a long time at 60–65°C (or over sulfuric acid) potassium alum dodecahydrate loses water, which is reabsorbed on exposure to air. It becomes anhydrous at about 200°C.

Purification Methods

Crystallise it from weak aqueous H2SO4 (ca 0.5mL/g). Its solubility (%) in H2O is 5.7 (0o), 12.0 (20o) and 136.9 (100o).

Incompatibilities

Potassium alum is incompatible with strong oxidizing agents, aluminum, copper, steel, and zinc. When it is dispensed in powders with phenol, salicylates, or tannic acid, gray or green colors may be developed owing to traces of iron in the alum.

Precautions

Aminocarb decomposes on heating and produces toxic fumes, irritating fumes, and oxides of nitrogen. During handling of aminocarb workers should wear protective clothing, gloves, face shield, breathing protection and avoid open flames.

Regulatory Status

GRAS listed. Included in the FDA Inactive Ingredients Database (vaginal; suppository). Included in medicines licensed in the UK.

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Aluminium potassium sulfate dodecahydrate Suppliers

Wuhan Xingzhongcheng Technology Co., Ltd.
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027-83383318 15549490740
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027-83389957
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358174403@qq.com
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China
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J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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86-10-82849933
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jkinfo@jkchemical.com
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China
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3B Pharmachem (Wuhan) International Co.,Ltd.
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future industrial shanghai co., ltd
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400-0066400 13621662912
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021-55660885
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sales@jonln.com
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Alfa Aesar
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400-6106006
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021-67582001/03/05
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saleschina@alfa-asia.com
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Beijing HwrkChemical Technology Co., Ltd
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Energy Chemical
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Adamas Reagent, Ltd.
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021-64823266
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Shanghai Hanhong Scientific Co.,Ltd.
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021-54306202 13764082696
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Shandong Xiya Chemical Co., Ltd
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View Lastest Price from Aluminium potassium sulfate dodecahydrate manufacturers

HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
Aluminium potassium sulfate dodecahydrate 7784-24-9
Price
US $980.00-750.00/ton
Min. Order
1ton
Purity
99%
Supply Ability
5000
Release date
2024-08-15
Hebei Yanxi Chemical Co., Ltd.
Product
Aluminium potassium sulfate dodecahydrate 7784-24-9
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
100tons
Release date
2023-09-06
Hebei Dangtong Import and export Co LTD
Product
Aluminium potassium sulfate dodecahydrate 7784-24-9
Price
US $185.00-150.00/ton
Min. Order
1ton
Purity
99%
Supply Ability
8000ton
Release date
2023-09-15

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