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규산칼슘

규산칼슘
규산칼슘 구조식 이미지
카스 번호:
1344-95-2
한글명:
규산칼슘
동의어(한글):
규산마그네시아석회;망간마그네시아규산석회;메타규산칼슘;규산칼슘;케이칼;칼슘실리케이트
상품명:
calcium silicate
동의어(영문):
solex;sw400;E 552;calsil;Ecolux;silmost;FM 1000;CALFLO E;floriter;sileneef
CBNumber:
CB3189805
분자식:
CaO3Si
포뮬러 무게:
116.16
MOL 파일:
1344-95-2.mol

규산칼슘 속성

녹는점
1540℃ [CRC10]
밀도
2.9 g/mL at 25 °C(lit.)
용해도
Practically insoluble in water; forms a gel with mineral acids. It can absorb up to 2.5 times its weight of liquids and still remain a free-flowing powder.
물리적 상태
white monoclinic crystals
Specific Gravity
2.9
수소이온지수(pH)
9.5-11.5 (5% in H2O)
수용성
insoluble H2O [HAW93]
Merck
13,1707
안정성
Stable.
CAS 데이터베이스
1344-95-2(CAS DataBase Reference)

안전

위험품 표기 Xi
위험 카페고리 넘버 36/37
안전지침서 22-26-37/39
WGK 독일 3
RTECS 번호 VV9170000

규산칼슘 C화학적 특성, 용도, 생산

개요

Calcium orthosilicate is commonly used as a safe alternative to asbestos for high-temperature insulation materials. Industrial grade piping and equipment insulation are often fabricated from calcium orthosilicate.

개요

The stoichiometry of the hydrate in cement paste is variable and the state of the chemically and physically bound water in its structure is not clear. Thus, calcium silicate can be prepared by calcining the oxide with silica, SiO2, at an elevated temperature: CaO + SiO2+ hea?CaSiO3

화학적 성질

white or cream powder

화학적 성질

Calcium silicate occurs as a crystalline or amorphous white or offwhite material, and often exists in different hydrate forms.

용도

Constituent (produced in situ) of lime glass, portland cement; reinforcing filler in elastomers and plastics; absorbent for liquids, gases, vapors; as anti-caking agent, suspension agent, pigment and pigment extender; binder for refractory material; in chromatography; in road construction.

용도

Calcium Silicate is an anticaking agent that exists in different forms, which are insoluble in water. it is used in salt to enhance flowability under extremely high humidity conditions. it is also used in baking powder and fabricated chips to absorb water or other liquids.

생산 방법

When used in oral formulations, calcium silicate is practically nontoxic. Inhalation of the dust particles may cause respiratory tract irritation.

위험도

Irritating dust. Use in foods restricted to 5% in baking powder, 2% in table salt. Upper res- piratory tract irritant. Questionable carcinogen.

Pharmaceutical Applications

Calcium silicate is used as a filler aid for oral pharmaceuticals. It has also been used in pharmaceutical preparations as an antacid.
The main applications of calcium silicate relate to its anticaking properties, and it has therefore been used in dusting powders and a range of different cosmetic products (e.g. face powders, eye shadow).

Safety Profile

A nuisance dust

Safety

GRAS listed. Included in the FDA Inactive Ingredients Database (oral dosage forms). Included in nonparenteral (oral, orodispersible, effervescent and enteric-coated tablets) formulations licensed in the UK.

저장

Calcium silicate is chemically stable and nonflammable, but it should be protected from moisture. Store in airtight containers in a cool, dry place.

비 호환성

Calcium silicate is a naturally occurring mineral, but for commercial applications it is usually prepared from lime and diatomaceous earth under carefully controlled conditions.

Regulatory Status

Calcium diorthosilicate; calcium trisilicate.

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