기본 정보
- CAS
10213-79-3- 표준 SMILES
O.O.O.O.O.O=[Si]([O-])[O-].[Na+].[Na+]- InChIKey
ADPGKKZKGXANON-UHFFFAOYSA-N- 분자식
- H10Na2O8Si
- 평균 분자량
- 212.14 g/mol
- 단동위원소 질량
- 211.99403237
개요
See also: Disodium dioxido(oxo)silane pentahydrate (annotation moved to).
이름 및 식별자
- 우선 이름
- Silicic acid (H2SiO3), disodium salt, pentahydrate
- IUPAC
- disodium;dioxido(oxo)silane;pentahydrate
- 현지명
- 메타규산 나트륨, 펜타히드레이트
- 영어명
- SODIUM METASILICATE PENTAHYDRATE
- 분자식
- H5NaO4Si
- 분자량
- 120.11
이름 및 동의어
Sodium metasilicate pentahydrateSilicic acid (H2SiO3), disodium salt, pentahydrateSilicic acid, disodium salt, pentahydrateDTXSID0029717DISODIUM METASILICATE PENTAHYDRATERefChem:885447DTXCID40971710213-79-3disodium;dioxido(oxo)silane;pentahydrateMFCD00149176H10Na2O8SiSCHEMBL123472
이름 더 보기
메타규산나트륨,펜타히드레이트몰리브덴산나트륨몰리브덴산소다나트륨몰리브덴산화물나트륨테트라옥소몰리브드산염메타규산나트륨,펜타히드레이트(SODIUMMETASILICATE,PENTAHYDRATE)metsogranulardrymetakeiso5aqdorimetakeiso5aqSodiumsilicatehydrateSODIUM SILICATE, PENTAHYDRATESodiumMestasilicatePentahydrateSodium metasilicate pentehydratesodiumsilicatehydrate(na2sio3.5h2o)
SODIUM METASILICATE 5H2OAKOS015913813FS76799NS00113262Sodium oxosilanebis(olate)--water (2/1/5)Sodium metasilicate pentahydrate, >=95.0% (T)F098683disodium;bis(oxidanidyl)-oxidanylidene-silane;pentahydrate
물성
구조 계산 물성
- 극성 표면적
- 68.2 Ų
- 수소 결합 공여자 수
- 5
- 수소 결합 수용자 수
- 8
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 11
- 형식 전하
- 0
- 복잡도
- 18.8
실험 및 물리화학적 성질
Chemical ClassesOther Classes -> Salts, Basic
Physical Description
Dry Powder; Liquid; Dry Powder; CBI
Crystalline powder; [Reference #1] White solid; [Sigma-Aldrich MSDS]
물리화학적 성질
- 녹는점
- 1088 °C · 1088°C
- 밀도
- 2.61 · 2.61
- 굴절률
- 1.52 · 1.52
- 저장 조건
- Store at room temperature
- 물리적 상태
- 고체
- 색상
- 하얀색
- 수소이온지수(pH)
- 12 · 12,5 (in aqueous solution: 10 g /l , 20 °C)
- 냄새
- odourless
- 수용성
- 찬물에 용해됩니다.
- Merck
- 14 · 14,8642
- InChI
- 1S/2Na.O3Si.5H2O/c;;1-4(2)3;;;;;/h;;;5*1H2/q2*+1;-2;;;;;
- InChIKey
- ADPGKKZKGXANON-UHFFFAOYSA-N
- SMILES
- O.O.O.O.O.[Na+].[Na+].[O-][Si]([O-])=O
- EPA
- Silicic acid (H2SiO3), disodium salt, pentahydrate (10213-79-3)
안전 및 규제
안전 정보는 참고용이며, 공급업체의 물질안전보건자료(SDS), 관련 법규 및 전문가 평가를 대체하지 않습니다.
GHS 분류
GHS Classification
Danger
H302: Harmful if swallowed [Warning Acute toxicity, oral]
P260, P264, P264+P265, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P321, P330, P363, P405, and P501 (click each P-code to see the statement)
유해성 정보
Regulatory Information
Silicic acid (H2SiO3), disodium salt, pentahydrate is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicic acid (H2SiO3), disodium salt, pentahydrate are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Sodium metasilicate, pentahydrate: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Corrosive to moistened rabbit skin; Sodium metasilicate was not sensitizing in a local lymph node assay study of mice; Similar uses and adverse effects are expected from the hydrous and anhydrous forms (Sodium metasilicate pentahydrate, Sodium metasilicate nonahydrate, Sodium metasilicate, Sodium silicate, and Potassium silicate). One case of occupational contact urticaria reported from sodium silicate; [OECD SIDS: Soluble Silicates - 2004] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; Harmful by ingestion; [Sigma-Aldrich MSDS] See Sodium metasilicate.
EPA Safer ChemicalChemical: Silicic acid, disodium salt, pentahydrate
Hazard Classes and CategoriesAcute toxicity (Oral) - Category 4
안전 및 보호
Protective Action Criteria (PAC)
화학 및 산업
용도 및 제조
Uses
Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Alkali metal silicates are used as starting materials for products like silicas and zeolites, in detergents and cleaners, and pulp and paper production; Also used to a lesser extent in soil stabilization and sealing, adhesives and binders (construction materials, paperboard and cardboard, ceramic binders, refractories, welding rods, and foundry molds and cores), surface coatings (titanium dioxide production, paints for masonry and glass, and spray coatings for tunnel construction and mining), water/wastewater treatment, enhanced oil recovery, and textile processing (bleach and dye stabilizing); [OECD SIDS: Soluble Silicates - 2004] Generally regarded as safe (GRAS) by the FDA for use in fruit and vegetable washes, sanitizers for food-contact surfaces, and other indirect food contact uses; [NTP]
Molding and Core Making [Category: Foundry]
U.S. Production2023: 250,000 - <400,000 lb
Consumer UsesNot Known or Reasonably Ascertainable
Industry UsesNot Known or Reasonably Ascertainable
Household ProductsInformation on 33 consumer products that contain Sodium metasilicate pentahydrate in the following categories is provided:
Use Classification
EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
General Manufacturing InformationAdhesive Manufacturing
응용 분야
개요메타규 산소다는 Silica의 중합 ion을 보유하므로 탈지력이 우수하다. 수용액의 pH가 일반 알칼리 용액보다 강하며 농도에 따라pH변화가 적다. 친수성규산의 작용으로 분산성 및 흡착성이 우수하여, 알칼리도 를 조정하는 완충작용을 갖고 있으므로 탈지의 손상이 없다.
관련 반응
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