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알루미늄 칼륨 황산염, 도데카수화물

알루미늄 칼륨 황산염, 도데카수화물
알루미늄 칼륨 황산염, 도데카수화물 구조식 이미지
카스 번호:
7784-24-9
한글명:
알루미늄 칼륨 황산염, 도데카수화물
동의어(한글):
알룸;알룸N.F.;칼륨알룸;칼리니트;Aluminumpotassiumdisulfatedodecahyd랫드e;알루미늄칼륨황산염,도데카수화물;알루미늄포타슘디설페이트도데카하이드레이트;알루미늄포타슘설페이트(AlK(SO4)2),도데카하이드레이트;알칼리알룸;칼륨알루미늄황산염도데카수화물;포타슘알루미늄디설페이트도데카하이드레이트;포타슘알루미늄설페이트도데카하이드레이트(KAl(SO4)212H2O);포타슘알룸도데카하이드레이트;황산,알루미늄포타슘솔트(2:1:1),도데카하이드레이트;황산칼륨알루미늄12수화물;알루미늄칼륨황산염(12수화물);알룸;칼리니트;칼륨알루미늄황산염(12수화물);알칼리알
상품명:
Aluminium potassium sulfate dodecahydrate
동의어(영문):
POTA;ALUM;kalinite;POTASH ALUM;ALUM SOLUTION;POTASSIUM ALUM;ALUM POTASSIUM;Aluminum Potassium s;POTASSIUMALUM,GRANULAR,USP;POTASSIUM AMMONIUM SULFATE
CBNumber:
CB0314947
분자식:
AlH24KO20S2
포뮬러 무게:
474.39
MOL 파일:
7784-24-9.mol

알루미늄 칼륨 황산염, 도데카수화물 속성

녹는점
92 °C(lit.)
밀도
1.757 g/mL at 25 °C(lit.)
저장 조건
Store at RT.
용해도
H2O: soluble0.5M, clear, colorless
물리적 상태
Solid
Specific Gravity
1.757
색상
White
수소이온지수(pH)
3.0-3.5 (25℃, 50mg/mL in H2O)
수용성
140 G/L (20 ºC)
Merck
14,360
안정성
Stable. Incompatible with steel, aluminium, copper, zinc, bases, strong oxidizing agents.
CAS 데이터베이스
7784-24-9(CAS DataBase Reference)
NIST
potassium aluminum sulfate dodecahydrate(7784-24-9)

안전

위험품 표기 Xn,Xi
위험 카페고리 넘버 36/38-22-36/37/38-21/22
안전지침서 22-24/25-37/39-26-36-20-13-2
WGK 독일 3
RTECS 번호 WS5690000
TSCA Yes
HS 번호 28332990

알루미늄 칼륨 황산염, 도데카수화물 C화학적 특성, 용도, 생산

화학적 성질

white to colourless crystals

화학적 성질

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.

화학적 성질

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.

용도

potassium alum (alum) is a cosmetic astringent.

용도

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.

용도

Buffer; floccculating reagent.

정의

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

생산 방법

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

정의

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.

건강위험

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.

저장

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).

비 호환성

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.

주의 사항

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.

알루미늄 칼륨 황산염, 도데카수화물 준비 용품 및 원자재

원자재

준비 용품


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