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71997

Sigma-Aldrich

Borax Anhydrous

BioUltra, anhydrous, ≥99%

Sinonimo/i:

Sodium tetraborate

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100 G
110,00 €
500 G
382,00 €
1 KG
606,00 €

110,00 €

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Cambia visualizzazione
100 G
110,00 €
500 G
382,00 €
1 KG
606,00 €

About This Item

Formula condensata:
Na2B4O7
Numero CAS:
1330-43-4
Peso molecolare:
201.22
Numero CE:
215-540-4
Numero MDL:
MFCD00081185
Codice UNSPSC:
12352302
ID PubChem:
329763686
NACRES:
NA.25

110,00 €

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Richiedi un ordine bulk

Grado

reagent grade

Livello qualitativo

200

Nome Commerciale

BioUltra

Saggio

≥99%

Stato

crystals

Impurezze

insoluble matter, passes filter test

Perdita

≤1% loss on drying, 20 °C (HV)

pH

9.0-10.5 (25 °C, 0.1 M in H2O)

Solubilità

H2O: 0.1 M at 20 °C, clear, colorless

Anioni in tracce

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

Assorbanza UV

λ: 260 nm Amax: ≤0.020
λ: 280 nm Amax: ≤0.015

Stringa SMILE

[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1
UQGFMSUEHSUPRD-UHFFFAOYSA-N

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Categorie correlate

Note legali

Pittogrammi

Health hazardExclamation mark
GHS08,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H319,H360FD

Classi di pericolo

Eye Irrit. 2 - Repr. 1B

Codice della classe di stoccaggio

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

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, Gloves, type P3 (EN 143) respirator cartridges

Elenchi normativi

Forniamo informazioni su eventuali restrizioni prevalentemente per i prodotti chimici. Per altre tipologie di prodotto siamo in grado di fornire soltanto informazioni limitate. Nessuna segnalazione significa che nessuno dei componenti è citato in un elenco. È dovere dell’utilizzatore assicurarsi che il prodotto venga impiegato in maniera sicura e a norme di legge.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number
BCCM6847
BCCL6820
BCCJ1338
BCCG6523
BCCD7933

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Sodium tetraborate decahydrate ReagentPlus®, ≥99.5%

Sigma-Aldrich

B9876

Sodium tetraborate decahydrate

di-Sodium tetraborate for analysis (ca. 85% Na₂B₄O₇)

Supelco

1.06310

di-Sodium tetraborate

Adipoyl chloride 98%

Sigma-Aldrich

165212

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Poly(ethyleneimine) solution analytical standard, 50 % (w/v) in H2O

Supelco

P3143

Poly(ethyleneimine) solution

William R Gunther et al.
Nature communications, 3, 1109-1109 (2012-10-11)
Carbohydrate epimerization is an essential technology for the widespread production of rare sugars. In contrast to other enzymes, most epimerases are only active on sugars substituted with phosphate or nucleotide groups, thus drastically restricting their use. Here we show that
Shridhar K Sathe et al.
Journal of agricultural and food chemistry, 57(17), 7846-7856 (2009-08-07)
The solubility of almond, Brazil nut, cashew nut, hazelnut, macadamia, pecan, pine nut, pistachio, walnut, and peanut proteins in several aqueous solvents was qualitatively and quantitatively assessed. In addition, the effects of extraction time and ionic strength on protein solubility
Dušan Koval et al.
Analytical biochemistry, 413(1), 8-15 (2011-02-09)
Two capillary electrophoretic methods were developed and evaluated for measurement of glycated hemoglobin A1c (HbA1c). First, a capillary electrophoresis analysis is performed with a sodium tetraborate buffer (pH 9.3) as background electrolyte in a neutrally coated capillary. HbA1c is separated
Qianqian Zhu et al.
Journal of chromatography. A, 1246, 35-39 (2012-03-03)
A technique known as field enhancement sample stacking (FESS) and capillary electrophoresis (CE) separation has been developed to analyze and detect organic acids in the three traditional Chinese medicines (such as Portulaca oleracea L., Crataegus pinnatifida and Aloe vera L.).
Ruina Li et al.
Journal of hazardous materials, 248-249, 268-275 (2013-02-07)
Rapid analysis of trace amount of aromatic amines in environmental samples and daily necessities has attracted considerable attentions because some of them are strongly toxic and carcinogenic. In this study, fast and efficient electrophoretic separation and sensitive determination of 5
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  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?

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