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규산

규산
규산 구조식 이미지
카스 번호:
7699-41-4
한글명:
규산
동의어(한글):
규산;규산(SILICICACID)
상품명:
Silicic acid
동의어(영문):
bio-sil;Silicic;Kieselsre;metasilicic;kieselsaure;SILICA ACID;Kieselsre,E551;metasilicicaci;HYDRATED SILICA;Silicicacid,amorph
CBNumber:
CB7431304
분자식:
H2O3Si
포뮬러 무게:
78.1
MOL 파일:
7699-41-4.mol

규산 속성

녹는점
1704℃
물리적 상태
powder
색상
White
CAS 데이터베이스
7699-41-4(CAS DataBase Reference)
EPA
Silicic acid (H2SiO3) (7699-41-4)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi
위험 카페고리 넘버 36/37
안전지침서 22-26-36
WGK 독일 3
RTECS 번호 VV8853000
기존화학 물질 KE-23144
그림문자(GHS):
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
0
2 0

규산 C화학적 특성, 용도, 생산

개요

Silicic acid is the general name that refers to the group of chemical compounds of the element hydrogen, silicon, and oxygen with the formula [SiOx(OH)4-2x]n. H4SiO4 is the most predominant form. Silicic acid is a hydrated form of silicon dioxide. It belongs to the family of Miscellaneous Silicates. These are inorganic compounds in which the largest metallic oxoanion is silicate, to which either no atom or a non metal atom is bonded. Silicic acid is contained in many foods, such as grain, fruit and vegetables (borage). It is commonly used in the manufacture of toothpastes and as a stationary phase for chromatography.It is utilized for the manufacture catalyst and catalyst carrier. It is involved in tungsten filament production as chemical reagent and flux. Further, it is used for oil and wax decoloring.

화학적 성질

Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder

용도

Laboratory reagent and reinforcing agent in rubber.

정의

The jellylike precipitate obtained when sodium silicate solution is acidified. The proportion of water varies with the conditions of preparation and decreases gradually during drying and ignition, until relatively pure silica remains. During drying the je

Safety Profile

An inhalation hazard. Poison by intravenous route. An eye irritant and nuisance dust. Questionable carcinogen. Mutation data reported. See also other silica entries and SILICATES

잠재적 노출

Amorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.

비 호환성

Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.

폐기물 처리

Sanitary landfill.

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