기본 정보
- 표준 SMILES
O=[Si](O)O- InChIKey
IJKVHSBPTUYDLN-UHFFFAOYSA-N- 분자식
- H2O3Si
- 평균 분자량
- 78.099 g/mol
- 단동위원소 질량
- 77.97732045
개요
See also: Silicate (annotation moved to).
이름 및 식별자
- 우선 이름
- Metasilicic acid
- IUPAC
- dihydroxy(oxo)silane
- 현지명
- 규산
- 영어명
- Silicic acid
- 분자식
- H2O3Si
- 분자량
- 78.1
이름 및 동의어
이름 더 보기
데이터베이스 식별자
- CAS
1343-98-2、7699-41-4- PubChem CID
- 14768
- DTXSID
DTXSID30872499- UNII
- 4OI8D3YOH1
- EC Number
- 231-716-3
- Nikkaji
- J215.993G
물성
구조 계산 물성
- 극성 표면적
- 57.5 Ų
- 수소 결합 공여자 수
- 2
- 수소 결합 수용자 수
- 3
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 4
- 형식 전하
- 0
- 복잡도
- 26.3
물리화학적 성질
- 녹는점
- 1704 ℃ · 1704℃
- 용해도
- 2 O; · insoluble in H2O; soluble in HF
- 물리적 상태
- 가루
- 색상
- 하얀색
- 수소이온지수(pH)
- 1 · pKa1= 9.65, pKa2 = 13.09(25℃)
- Dielectric constant
- 2 · 2.0(Ambient)
- InChI
- 1S/H2O3Si/c1-4(2)3/h1-2H
- InChIKey
- IJKVHSBPTUYDLN-UHFFFAOYSA-N
- SMILES
- O[Si](O)=O
- EPA
- Silicic acid (H2SiO3) (7699-41-4)
화학적 성질
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
안전 및 규제
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 4.8% (5 of 105) of reports.
Warning
H319 (90.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 105 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
유해성 정보
Regulatory Information
Chemical: Silicic acid (H2SiO3)
Silicic acid (H2SiO3): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
안전 데이터
- OEB
- B
- OEL
- TWA: 6.0 mg/m3
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- VV8853000
- risk_code
- 36/37
- hazard_code
- Xi
- safety_code
- 22-26-36
- 기존화학 물질
- KE-23144
- Hazard Classifications
- Eye Irrit. 2STOT SE 3
- 스토리지 클래스
- 11 - Combustible Solids
화학 및 산업
용도 및 제조
응용 분야
개요Silicic 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.
용도Silicic acid is used in protein chromatography. Silicic acid has been used in a study to demonstrate the anti-biofilm potential of a glycolipid surfactant produced by a tropical marine strain of Serratia marcescens. Silicic acid has also been used to study the antioxidant activity of fresh and processed Jalapeno and Serrano peppers.
상·하류 제품 정보
상류 원료
하류 제품
공급사50 곳
추가 설명
정의The 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
관련 반응
연결된 노트
불러오는 중…