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S7907

Sodium phosphate dibasic

BioXtra, ≥99.0%

Synonim(y):

sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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Rozmiar/SKUDostępnośćCena netto
100 g
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409,00 zł
500 g
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1150,00 zł
1 kg
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5 kg
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6600,00 zł

Informacje o tej pozycji

Wzór liniowy:
Na2HPO4
Numer CAS:
Masa cząsteczkowa:
141.96
PubChem Substance ID:
eCl@ss:
38070211
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
231-448-7
MDL number:

409,00 zł


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product line

BioXtra

Quality Segment

assay

≥99.0%

form

powder or crystals

impurities

≤0.1% Insoluble matter

pH

8.0-11.0 (20 °C, 1 M in H2O)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%, Ca: ≤0.002%, Cu: ≤0.0005%, Fe: ≤0.002%, K: ≤0.005%, Mg: ≤0.005%, NH4+: ≤0.05%, Pb: ≤0.001%, Zn: ≤0.0005%

absorption

<0.05 at 260 in H2O at 1 M, <0.05 at 280 in H2O at 1 M

SMILES string

[Na+].[Na+].[H]OP([O-])([O-])=O

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

General description

Sodium phosphate dibasic (NaH2PO4), also known as disodium phosphate, is a commonly used phosphate salt in biochemistry research due to its versatile properties. It is a key component in the preparation of phosphate buffer saline (PBS) and phosphate buffer, a commonly used buffer solution in many biological applications. In addition to its buffer properties, NaH2PO4 is also used as a precipitating agent to form silver orthophosphate (Ag3PO4) powders, making it a valuable tool in many laboratory settings. Disodium phosphate is also a widely used emulsifier in dairy products such as cheese and other foods.

Application

Sodium phosphate dibasic has been used:
  • as a component of phosphate buffered saline (PBS)
  • as a component of buffer for the preparation of cryopreservation diluent
  • in the preparation of McIlvaine buffer (citrate-phosphate buffer) for toluidine blue staining
  • in the preparation of the S9 mix for the Ames test, and SOS Chromotest
  • in the preparation of calcium deficient hydroxyapatite (CDHA) paste during the fabrication process of the CDHA scaffold

Features and Benefits

  • The BioXtra product line ensures high-quality products for consistent results.
  • High level of assay ( ≥99.0%), indicating its purity.
  • Powder form for easy handling and use.
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Ta pozycja
567550S326404276
description

BioXtra, ≥99.0%

description

ACS Reagent Grade. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.

description

Molecular Biology, ≥98.5% (titration)

description

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 98-100.5% (calc. to the dried substance)

assay

≥99.0%

assay

-

assay

≥98.5% (titration)

assay

98-100.5% (calc. to the dried substance)

Quality Level

200

Quality Level

100

Quality Level

300

Quality Level

200

product line

BioXtra

product line

-

product line

-

product line

-

form

powder or crystals

form

solid

form

powder

form

powder

pH

8.0-11.0 (20 °C, 1 M in H2O)

pH

-

pH

8.9-9.2 (25 °C, 50 g/L in water)

pH

8.4-9.6 (20 °C, 1%)

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

water: soluble

solubility

H2O: 100 mg/mL

solubility

H2O: soluble 8 parts, H2O: very soluble (Hot), alcohol: insoluble


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Klasa składowania

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

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

    1 answer
    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

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