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1.06586

Phosphate de sodium dibasique

anhydrous for analysis EMSURE® ACS,Reag. Ph Eur

Synonyme(s) :

Phosphate de sodium dibasic, Phosphate de sodium secondaire, Hydrogénophosphate de disodium, Hydrogénophosphate de sodium, Phosphate disodique

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A propos de cet article

Formule linéaire :
Na2HPO4
Numéro CAS:
Poids moléculaire :
141.96
NACRES:
NA.21
EC Index Number:
231-448-7
UNSPSC Code:
12352302
MDL number:
Assay:
≥99.0% (alkalimetric)
Grade:
ACS reagent
Form:
solid
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grade

ACS reagent

Quality Level

agency

reag. Ph. Eur.

product line

EMSURE®

assay

≥99.0% (alkalimetric)

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

impurities

≤0.01% Insoluble matter

loss

≤ 0.2% loss on drying, 105 °C

pH

8.7-9.3 (20 °C, 10 g/L in H2O)

pKa (25 °C)

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

mp

>450 °C

bulk density

880 kg/m3

anion traces

chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.005%

cation traces

Cu: ≤0.0003%, Fe: ≤0.001%, K: ≤0.01%, Pb: ≤0.001%, heavy metals: ≤0.001%

storage temp.

2-30°C

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

Application

Sodium phosphate dibasic can be used as:
  • A component of the mobile phase for the analysis of guanidinoacetate methyltransferase using high-performance liquid chromatography (HPLC).
  • The source of phosphate ions in the synthesis of hydroxyapatite nanopowders.

Analysis Note

Dosage (alcalimétrie) : ≥ 99,0 %
Matière insoluble : ≤ 0,01 %
pH (5 %, eau, 25 °C) : 8,7 - 9,3
Chlorure (Cl) : ≤ 0,002 %
Sulfate (SO₄) : ≤ 0,005 %
Métaux lourds (ACS) : ≤ 0,001 %
Cu (cuivre) : ≤ 0,0003 %
Fe (fer) : ≤ 0,001 %
K (potassium) : ≤ 0,01 %
Pb (plomb) : ≤ 0,001 %
Perte au séchage (105 °C) : ≤ 0,2 %
Conforme à ACS, Réact. Ph Eur

Other Notes

Remplace : SX0720; SX0720-1; SX0720-5; SX0720-7; SX0720-20

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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Cet article
5.43838RDD02271642
form

solid

form

solid

form

powder

form

powder

assay

≥99.0% (alkalimetric)

assay

-

assay

≥99.0%

assay

≥98.0% (T)

Quality Level

300

Quality Level

100

Quality Level

100

Quality Level

300

grade

ACS reagent

grade

anhydrous

grade

anhydrous

grade

-

pH

8.7-9.3 (20 °C, 10 g/L in H2O)

pH

8.7-9.3 (20 °C, 10 g/L in H2O)

pH

8.9-9.2 (25 °C, 50 g/L in water)

pH

8.8-9.4 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

-

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤1000 mg/kg


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Classe de stockage

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Numéro d'article de commerce international

RéférenceGTIN
106586250004022536079653
106586905004022536079677
106586050004022536079639
106586901204027269691431
106586100004027269055516

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

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  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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