Sodium metasilicate pentahydrate - ≥95% , CAS No.10213-79-3

CAS: 10213-79-3 Cat. No.: S100563 Molecular Weight: 212.14 EC Number: 600-279-4 PubChem CID: 61495
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
disodium;dioxido(oxo)silane;pentahydrate | Silicic acid (H2SiO3), disodium salt, pentahydrate | 4-BENZYLOXYPHENYLACETYLCHLORIDE | Sodium metasilicate pentahydrate | disodium oxosilanediolate pentahydrate | MFCD00149176 | Silicic acid, disodium salt, penta
Storage
Room temperature,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250g
S100563-250g
2

$21.90

$25.90
Save $4.00 (15.44%)
500g
S100563-500g
2

$35.90

$46.90
Save $11.00 (23.45%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Cool Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
disodium;dioxido(oxo)silane;pentahydrate | Silicic acid (H2SiO3), disodium salt, pentahydrate | 4-BENZYLOXYPHENYLACETYLCHLORIDE | Sodium metasilicate pentahydrate | disodium oxosilanediolate pentahydrate | MFCD00149176 | Silicic acid, disodium salt, penta
Specifications & Purity
≥95%
Storage
Room temperature, Cool
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid504753784
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504753784
Canonical SmilesO.O.O.O.O.[O-][Si](=O)[O-].[Na+].[Na+]
IUPAC Namedisodium;dioxido(oxo)silane;pentahydrate
InChIKeyADPGKKZKGXANON-UHFFFAOYSA-N
INCHI1S/2Na.O3Si.5H2O/c;;1-4(2)3;;;;;/h;;;5*1H2/q2*+1;-2;;;;;
Isomeric SMILES O.O.O.O.O.[O-][Si](=O)[O-].[Na+].[Na+]
WGK Germany 3
RTECS VV9287500
PubChem CID 61495
UN Number 3253
Packing Group III
Molecular Weight 212.14

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal silicates
Intermediate Tree Nodes Not available
Direct ParentAlkali metal silicates
Alternative Parents Miscellaneous silicates  Metalloid salts  Inorganic sodium salts  Inorganic oxides  
Molecular FrameworkNot available
Substituents Silicate - Alkali metal silicate - Inorganic sodium salt - Inorganic oxide - Inorganic salt - Inorganic metalloid salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal silicates. These are inorganic compounds in which the largest oxoanion is silicate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

16 results found

Lot NumberCertificate TypeDateItem
C2612247Certificate of AnalysisMar 17, 2026 S100563
C2623463Certificate of AnalysisMar 17, 2026 S100563
C2623464Certificate of AnalysisMar 17, 2026 S100563
C2623465Certificate of AnalysisMar 17, 2026 S100563
C2603656Certificate of AnalysisFeb 27, 2026 S100563
C2603657Certificate of AnalysisFeb 27, 2026 S100563
C2603658Certificate of AnalysisFeb 27, 2026 S100563
L2118186Certificate of AnalysisOct 11, 2025 S100563
L2118187Certificate of AnalysisOct 11, 2025 S100563
A2513204Certificate of AnalysisJan 04, 2025 S100563
A2513323Certificate of AnalysisJan 04, 2025 S100563
A2513327Certificate of AnalysisJan 04, 2025 S100563
K2511120Certificate of AnalysisJan 04, 2025 S100563
H2426099Certificate of AnalysisOct 23, 2021 S100563
J2330031Certificate of AnalysisOct 23, 2021 S100563
K2419210Certificate of AnalysisOct 23, 2021 S100563

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Chemical and Physical Properties
SolubilityEasily soluble in water.
SensitivityMoisture sensitive
Molecular Weight212.140 g/mol
XLogP3
Hydrogen Bond Donor Count5
Hydrogen Bond Acceptor Count8
Rotatable Bond Count0
Exact Mass211.994 Da
Monoisotopic Mass211.994 Da
Topological Polar Surface Area68.200 Ų
Heavy Atom Count11
Formal Charge0
Complexity18.800
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count8
Documents & Articles
Potassium Fatty Acid Soaps: Structure and Formulation Applications—Production Processes, Alkalinity, Foam Control, and Low-Foam Cleaning
What Is Silica Sol: Mechanism of Action, Application Scenarios, and Selection Criteria for Nanosilica Dispersions
Why LABSA (Sulfonic Acid) Is Commonly Used in Household Cleaning Formulations: Neutralization Mechanism, Detergency Action, and Formulation Application Points
Differences, Mechanisms of Action, and Selection of Sodium Metasilicate and Sodium Tripolyphosphate in Detergent and Cleaning Formulations
Differences, Functions, and Selection Guidelines for Sodium Hydroxide Flakes, Granules, Liquid Caustic Soda, and Caustic Soda in Household and Personal Care Product Manufacturing: The Functional and Application Logic of Sodium Hydroxide
Why Daily Chemical Formulations Need Alkaline Ingredients: From pH Adjustment and Saponification to Detergency Boosting and Selection Logic
Xiao Fang Bai, Da Fang Bai, PnB and DPnB: Mechanisms and Selection of Butyl Glycol Ethers in Hard-Surface Cleaning Formulations
Degreasing Agents from a Molecular-Structure Perspective: How AEO, APG, and Related Surfactants Can Replace Nonylphenol Ethoxylates (NPE)
How Can Sodium Tripolyphosphate (STPP) Be Replaced? From Detergency Mechanisms to Formulation Choices for Low-Phosphorus/Phosphorus-Free Builder Systems
Interfacial Mechanism and Formulation Applications of AEO-9 (Fatty Alcohol Polyoxyethylene Ether): An Analysis of Emulsification, Wetting, Oil Soil Removal, and Co-Formulation Compatibility
From Structure to Selection: Mechanisms and Application Assessment of Low-Foam Oil and Wax Removal with Fatty Acid Methyl Ester Ethoxylates (FMEE)
Sodium Metasilicate in Cleaning Applications: Hydration-Form Differences, Mechanisms of Action, and Selection Logic
Analysis of the Foaming Performance Differences Between K12 and AOS: Structure, Acid–Base Stability, and Formulation Selection
Citations of This Product
References
1. Tao Wang, Jianmin Liu, Weihui Jiang, Feng Jiang, Guo Feng, Lifeng Miao, Quan Zhang, Qian Wu, Xinbin Lao.  (2022)  Fluorine-free synthesis and characterization of vanadium-zircon (V–ZrSiO4) turquoise ceramic pigment by a low temperature solid state reaction route.  CERAMICS INTERNATIONAL,      [PMID:] [10.1016/j.ceramint.2022.05.083]
2. Xiaowei Liu, Chen Chen, Peng Chen, Lili Wang.  (2023)  Ultrafast degradation of SMX and TC by CoSiOx activated peroxymonosulfate: efficiency and mechanism.  RSC Advances,  13  (5): (3103-3111).  [PMID:36756404] [10.1039/D2RA06865F]
3. Zhong Yaping, Zou Yibiao, Yang Xianhong, Lu Zhentan, Wang Dong.  (2021)  Ascorbic acid detector based on fluorescent molybdenum disulfide quantum dots.  MICROCHIMICA ACTA,  189  (1): (1-12).  [PMID:34877612] [10.1007/s00604-021-05124-1]
4. Haixu Wang, Dongjie Yang, Wenlong Xiong, Weifeng Liu, Xueqing Qiu.  (2021)  One-pot preparation of hydrophobic lignin/SiO2 nanoparticles and its reinforcing effect on HDPE.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:33745976] [10.1016/j.ijbiomac.2021.03.091]
5. Chengdong Xiong, Zhenzhen Quan, Hongnan Zhang, Liming Wang, Xiaohong Qin, Rongwu Wang, Jianyong Yu.  (2020)  Hierarchically tunable structure of polystyrene-based microfiber membranes for separation and selective adsorption of oil-water.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2020.147400]
6. Ge Yang, Hailing Guo, Zixi Kang, Shou Feng, Lei Zhao, Svetlana Mintova.  (2020)  Sandwich-type H2/CO2 membranes comprising of graphene oxide and sodalite crystals with adjustable morphology and size.  MICROPOROUS AND MESOPOROUS MATERIALS,      [PMID:] [10.1016/j.micromeso.2020.110120]
7. Zefeng Yu, Weifeng Song, Jiayao Li, Qiuhua Li.  (2020)  Improved simultaneous adsorption of Cu(II) and Cr(VI) of organic modified metakaolin-based geopolymer.  Arabian Journal of Chemistry,      [PMID:] [10.1016/j.arabjc.2020.01.001]
8. Tong Dongshen, Fang Kai, Yang Haiyan, Wang Jie, Zhou Chunhui, Yu Weihua.  (2019)  Efficient removal of copper ions using a hydrogel bead triggered by the cationic hectorite clay and anionic sodium alginate.  ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,  26  (16): (16482-16492).  [PMID:30982191] [10.1007/s11356-019-04895-8]
9. Yaping Zhong, Tao Yi.  (2019)  MoS2 quantum dots as a unique fluorescent “turn-off–on” probe for the simple and rapid determination of adenosine triphosphate.  Journal of Materials Chemistry B,  (15): (2549-2556).  [PMID:32255131] [10.1039/C9TB00191C]
10. Lei Cao, Jintang Guo, Jianhua Tian, Miaomiao Hu, Chun Guo, Yang Xu, Meiyu Wang, Jinjie Fan.  (2017)  The ability of sodium metasilicate pentahydrate to adjust the compatibility between synthetic Fluid Loss Additives and Retarders applying in oil well cement.  CONSTRUCTION AND BUILDING MATERIALS,      [PMID:] [10.1016/j.conbuildmat.2017.08.185]
11. Guoliang Li, Lulu Liu, Jianquan Luo, Jia Guo, Lei Chen, Yinhua Wan, Xiangrong Chen.  (2024)  Enhancing silica scaling resistance of high-pressure reverse osmosis membranes through surface grafting with various sulfonic acid monomers.  DESALINATION,      [PMID:] [10.1016/j.desal.2024.118028]
12. Li Chen, Jing Geng, Renhui Gao, Qianqian Xu, Zheng Guo.  (2024)  Lacunary polyoxometalates-induced controllable synthesis of Fe2O3/Si-FeWO4 heterostructure nanotubes for selective sensing of m-xylene.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2024.135489]
13. Kaifeng Wang, Yuxun Kan, Yunsheng Zhu, Kaihong Zhong, Jiabing Hu.  (2024)  Optimization of synthesis parameters for C-S-H/PCE nanocomposites: A comprehensive study using orthogonal experiments and multi-analysis approaches.  CONSTRUCTION AND BUILDING MATERIALS,      [PMID:] [10.1016/j.conbuildmat.2024.135332]
14. Tan Xiansheng, Liang Caiying, Bai Shihang, Lan Pei, Ren Yan, Zhao Jianhao, Rong Jianhua.  (2024)  PVA/silica hybrid hydrogel with ultra-high strength and toughness.  JOURNAL OF MATERIALS SCIENCE,  59  (16): (6916-6928).  [PMID:] [10.1007/s10853-023-09061-7]
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