ALUMINUM POTASSIUM SULFATE CAS:10043-67-1

  • Product Name:ALUMINUM POTASSIUM SULFATE
  • CAS:10043-67-1
  • Molecular formula:AlKO8S2
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ALUMINUM POTASSIUM SULFATE CAS:10043-67-1

ALUMINUM POTASSIUM SULFATE CAS:10043-67-1 Basic information

Product Name: ALUMINUM POTASSIUM SULFATE
Synonyms: POTASSIUM ALUMINUM SULFATE;ALUMINUM POTASSIUM SULFATE;ALUM POTASSIUM;ALUMINIUM POTASSIUM SULPHATE;ALUMINIUM POTASSIUM SULFATE;7784-24-9aluminiumpotassiumbis(sulphate);alum,n.f.;aluminiumpotassiumbis(sulfate)
CAS: 10043-67-1
MF: AlKO8S2
MW: 258.21
EINECS: 233-141-3
Product Categories: Inorganics
Mol File: 10043-67-1.mol

ALUMINUM POTASSIUM SULFATE CAS:10043-67-1 Chemical Properties

density: 1.725 g/cm3
form: white hygroscopic powder
Water Solubility: g/100g H2O: 3.00 (0°C), 5.90 (20°C), 109 (90°C) [LAN05]
solubility: Freely soluble in water, very soluble in boiling water; soluble in glycerol; practically insoluble in ethanol (96%).
Merck: 13,359
CAS DataBase Reference: 10043-67-1(CAS DataBase Reference)
EPA Substance Registry System: Potassium aluminum sulfate (10043-67-1)

检 验 项 目

T e s t I t e m

检 验 标 准

T e s t S t a n d a r d

检 验 结 果

T e s t r e s u l t

性状

(Characters)

白色结晶

White crystal

合格

Conform

含量

(Assay)

99.5%

99.7%

PH

Ph

3.0~3.5

合格

Conform

澄清度实验

(Appearance of solution)

应符合规定

Comply with the standard

合格

Conform

水不溶物

(Water insoluble)

0.005%

0.0002%

氯化物

(Chloride)

0.0005%

0.0002%

(Ammonium)

0.005%

0.0001%

(Arsenic)

0.00005%

0.00002%

(Sodium)

0.02%

0.01%

(Iron)

0.001%

0.0004%

重金属

(Heavy metal)

0.0005%

0.0002%

结论(Conclusion):符合分析纯之规定(The above product complies with AR)

ALUMINUM POTASSIUM SULFATE Usage And Synthesis
Chemical PropertiesAlso known as potash alum, alum NF, and potassium alum, Al2(S04)3.K2S04.24H20 (sometimes written AlK(S04)2·12H20) is white, odorless crystals having an astringent taste, and is soluble in water, insoluble in alcohol, and noncombustible. Solutions in water are acid. Derived from alumite, leucite, or similar minerals, and also by crystallization from a solution made by dissolving aluminum sulfate and potassiwn sulfate and mixing, Used in dyeing (mordant), paper, matches, paints, tanning agents, waterproofing agents, purification of water, aluminum salts, food additive, baking powder, astringent, and as a cement hardener.
Chemical Propertieswhite powder(s); absorbs atmospheric moisture [MER06]
Chemical PropertiesThe 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.
UsesAstringent (topical).
DefinitionChEBI: A metal sulfate composed of potassium, aluminium and sulfate ions in the ration 1:1:2.
Production MethodsPotassium alum is manufactured by treating bauxite with sulfuric acid and then potassium sulfate. Alternatively, aluminum sulfate is reacted with potassium sulfate.
Pharmaceutical ApplicationsPotassium 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.
SafetyPotassium 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.
storageStore 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.
IncompatibilitiesPotassium 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.
Regulatory StatusGRAS listed. Included in the FDA Inactive Ingredients Database (vaginal; suppository). Included in medicines licensed in the UK.


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