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307815

Sigma-Aldrich

Sodium metasilicate

Sinonimo/i:

Disodium metasilicate, Disodium silicate, Sodium silicate, Sodium silicon oxide

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25 G
48,30 €
1 KG
69,60 €
2.5 KG
86,80 €

48,30 €

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Cambia visualizzazione
25 G
48,30 €
1 KG
69,60 €
2.5 KG
86,80 €

About This Item

Formula condensata:
Na2SiO3
Numero CAS:
6834-92-0
Peso molecolare:
122.06
Numero CE:
229-912-9
Numero MDL:
MFCD00003492
Codice UNSPSC:
12352302
ID PubChem:
24858628
NACRES:
NA.22

48,30 €

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Composizione

SiO2, 50-53%

Livello qualitativo

200

Stringa SMILE

[Na+].[Na+].[O-][Si]([O-])=O

InChI

1S/2Na.O3Si/c;;1-4(2)3/q2*+1;-2
NTHWMYGWWRZVTN-UHFFFAOYSA-N

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Descrizione generale

SMS is a silicon source for silica materials and can be used as a chemical intermediate for silica gel catalysts.[1]

Applicazioni

Reactant for:
  • Hydrothermal preparation of thorium uranium silicate (Th1-xUxSiO4) uranothorite solid solutions
  • Fabrication of dense NaA zeolite coatings
  • Reactant for preparation of tungsten modified silica as catalyst for liquid phase oxidation of styrene
Sodium metasilicate (SMS) has been used in the preparation of polypyrrole/sodium metasilicate (PPy/Na2SiO3) and polythiophene/sodium metasilicate (PT/Na2SiO3) composites, novel high dielectric constant materials for use in power electronic systems.[2]

SMS can also be used:
  • To prepare NaZnSiO3OH, a novel chiral framework material which has potential application in ion exchange, adsorption and catalysis.[3]
  • As a low-cost alternative to tetraethyl orthosilicate (TEOS) to synthesize highly ordered mesoporous silicas.[4]
  • To prepare geopolymer concrete.[5]

Pittogrammi

CorrosionExclamation mark
GHS05,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H290,H314,H335

Classi di pericolo

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

8B - Non-combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

Lot/Batch Number
MKCV2814
MKCT1110
MKCQ3811
STBK5682
MKCS5522

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Subramani Saravanabhavan et al.
Environmental science & technology, 42(5), 1731-1739 (2008-04-30)
Growing environmental regulations propound the need for a transformation in the current practice of leather making. The conventional dehairing and fiber opening process results in high negative impact on the environment because of its uncleanliness. This process accounts for most
Synthesis and structure of NaZnSiO3OH, a new chiral zincosilicate framework material.
Healey A M, et al.
Inorganic Chemistry, 38(3), 455-458 (1999)
C S Sharma et al.
Poultry science, 91(3), 719-723 (2012-02-16)
The objectives of this study were to determine the antimicrobial effects of sodium metasilicate (SMS) against Salmonella and psychrotrophic organisms in fresh, boneless, uncooked chicken breast fillets and to ascertain the effects of SMS treatments on pH. Chicken breast fillets
Eun-Jin Kim et al.
Biological trace element research, 152(1), 105-112 (2013-01-12)
Previous studies have reported that dietary silicon (Si) intake is positively associated with bone health including bone mineral density. Although the amount of Si intake is high among trace elements in humans, how dietary Si affects bone formation at the
George H Weber et al.
Journal of food protection, 67(7), 1501-1506 (2004-07-24)
Three intervention strategies-trisodium phosphate, lactic acid, and sodium metasilicate--were examined for their in vitro antimicrobial activities in water at room temperature against a three-strain cocktail of Escherichia coli O157:H7 and a three-strain cocktail of "generic" E. coli. Both initial inhibition
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Domande

1–4 di 4 domande  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Utile?

  3. Can I know the percent of Na2O in sodium metasilicate (1Kg)?

    1 risposta

    1. The Na2O concentration is determined on a lot specific basis. The expected range is 49.5 - 52.5% by HCl titration. See the link below to review a sample or lot specific Certificate of Analysis:
      https://www.sigmaaldrich.com/product/aldrich/307815#product-documentation

      Utile?

  4. Hi, may I inquire about what is the particle size range of this sodium metasilicate?

    1 risposta

    1. The particle size is not determined for this product.

      Utile?

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