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71997

Borax Anhydrous

Name: Borax Anhydrous
Brand: SIAL

BioUltra, anhydrous, ≥99%

Sinonimo/i:

Sodium tetraborate

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Taglio della confezione	SKU	Disponibilità	Prezzo

Informazioni su questo articolo

Formula condensata:

Na₂B₄O₇

Numero CAS:

1330-43-4

Peso molecolare:

201.22

NACRES:

NA.25

PubChem Substance ID:

329763686

UNSPSC Code:

12352302

EC Number:

215-540-4

MDL number:

MFCD00081185

Assay:

≥99%

Grade:

reagent grade

Form:

crystals

Solubility:

H₂O: 0.1 M at 20 °C, clear, colorless

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Proprietà

grade

reagent grade

Quality Segment

200

product line

BioUltra

assay

≥99%

form

crystals

impurities

insoluble matter, passes filter test

loss

≤1% loss on drying, 20 °C (HV)

pH

9.0-10.5 (25 °C, 0.1 M in H₂O)

solubility

H₂O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤10 mg/kg, phosphate (PO₄^3-): ≤20 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg

cation traces

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

UV absorption

λ: 260 nm A_max: ≤0.020, λ: 280 nm A_max: ≤0.015

SMILES string

[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

InChI key

UQGFMSUEHSUPRD-UHFFFAOYSA-N

Descrizione

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Questo articolo	71996	71996	229946
Sigma-Aldrich 71997 Borax Anhydrous	Sigma-Aldrich 71996 Borax Anhydrous	Sigma-Aldrich 71996 Borax Anhydrous	Sigma-Aldrich 229946 Sodium tetraborate
form crystals	form crystals	form crystals	form powder
assay ≥99%	assay ≥98.0% (T)	assay ≥98.0% (T)	assay 99.998% trace metals basis
solubility H₂O: 0.1 M at 20 °C, clear, colorless	solubility -	solubility -	solubility -
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 100
grade reagent grade	grade -	grade -	grade -
cation traces Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Ca: ≤50 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mo: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤0.5 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mn: ≤5 mg/kg, Sr: ≤5 mg/kg, Bi: ≤5 mg/kg, Li: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg	cation traces Ag: ≤5 mg/kg, Al: ≤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: ≤10 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, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces Ag: ≤5 mg/kg, Al: ≤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: ≤10 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, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces -
form crystals	form crystals	form crystals	form powder
assay ≥99%	assay ≥98.0% (T)	assay ≥98.0% (T)	assay 99.998% trace metals basis
solubility H₂O: 0.1 M at 20 °C, clear, colorless	solubility -	solubility -	solubility -
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 100
grade reagent grade	grade -	grade -	grade -
cation traces Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Ca: ≤50 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mo: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤0.5 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mn: ≤5 mg/kg, Sr: ≤5 mg/kg, Bi: ≤5 mg/kg, Li: ≤5 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg	cation traces Ag: ≤5 mg/kg, Al: ≤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: ≤10 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, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces Ag: ≤5 mg/kg, Al: ≤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: ≤10 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, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces -

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pictograms

GHS08,GHS07

signalword

Danger

hcodes

H319,H360FD

pcodes

P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 - P337 + P313

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Classe di stoccaggio

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

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificati d'analisi (COA)

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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

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Numero articolo commerciale globale

SKU	GTIN
71997-100G	04061832855547
71997-500G	04061832855561

Questions

1–2 of 2 Questions

Anonymous

10 months ago

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

1 answer
1. Technical Support
  
  10 months ago
  
  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/418/501/product-dating-information-06-25-mk.pdf
  
  Helpful?
Anonymous

a year ago

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

1 answer
1. Technical Support
  
  a year ago
  
  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
  
  Helpful?

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