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04269

Sodium phosphate monobasic dihydrate

meets analytical specification of Ph. Eur., BP, USP, E 339, 98-100.5% (calc. to the dried substance)

Synonym(s):

Sodium dihydrogen phosphate dihydrate

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1 kg

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$69.50
5 kg
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$280.00
6 x 1 kg

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4 x 5 kg
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$750.00

About This Item

Linear Formula:
NaH2PO4 · 2H2O
CAS Number:
Molecular Weight:
156.01
PubChem Substance ID:
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
231-449-2
MDL number:
Assay:
98-100.5% (calc. to the dried substance)
Form:
powder or crystals

$69.50


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Quality Segment

assay

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

form

powder or crystals

quality

meets analytical specification of Ph. Eur., BP, USP, E 339

impurities

heavy metals (as Pb), complies, organic volatile impurities, complies, reducing matter, complies, related substances, complies, residual solvents, complies, ≤0.2% water-insoluble matter

loss

21.5-24.0% loss on drying, 130 °C

pH

4.1-5.0 (20 °C, 1%), 4.2-4.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤50 mg/kg, fluoride (F-): ≤10 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

Al:, in accordance, As: ≤1 mg/kg, Ca: ≤20 mg/kg, Ca:, in accordance, Cd: ≤1 mg/kg, Cu: ≤10 mg/kg, Fe: ≤5 mg/kg, Hg: ≤1 mg/kg, Mg: ≤20 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

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

InChI

1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1

InChI key

VBJGJHBYWREJQD-UHFFFAOYSA-M

Application

Sodium phosphate monobasic dihydrate has been used for preparing phosphate buffer solution.[1] It has also been used as a mobile phase for high-performance liquid chromatography.[2]

Biochem/physiol Actions

Sodium phosphate monobasic also referred to as sodium dihydrogen phosphate is a chemical reagent possesses high buffering capacity and is used for preparing biological buffers. It was used as a phosphate supplement for determining whether phosphate supplementation can prevent rickets in very low birth weight infants with prenatal deficiency of phosphate.PMID 1969066

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This Item
715051.473451.06345
description

meets analytical specification of Ph. Eur., BP, USP, E 339, 98-100.5% (calc. to the dried substance)

description

BioUltra, Molecular Biology, ≥99.0% (T)

description

granulated, EMPROVE® EXPERT, Ph. Eur., JPE, USP, BP, ChP

description

EMPROVE® ESSENTIAL, Ph. Eur., BP, ChP, JPE, USP, E 339

form

powder or crystals

form

powder or crystals

form

granular

form

solid

assay

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

assay

≥99.0% (T)

assay

-

assay

-

Quality Level

200

Quality Level

200

Quality Level

500

Quality Level

500

cation traces

Al:, in accordance, Ca: ≤20 mg/kg, Cd: ≤1 mg/kg, Fe: ≤5 mg/kg, Mg: ≤20 mg/kg, Zn: ≤10 mg/kg, As: ≤1 mg/kg, Cu: ≤10 mg/kg, Pb: ≤4 mg/kg, Ca:, in accordance, Hg: ≤1 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.2 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 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

cation traces

-

cation traces

-

pH

4.1-5.0 (20 °C, 1%), 4.2-4.5 (20 °C, 5%)

pH

4.0-4.5 (25 °C, 1 M in H2O)

pH

-

pH

4.5 (25 °C, 12 g/L in H2O)

anion traces

fluoride (F-): ≤10 mg/kg, chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤200 mg/kg

anion traces

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

anion traces

-

anion traces

-


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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Questions

1–3 of 3 Questions  
  1. 본 제품의 보관 온도가 어떻게 되는지 알고싶습니다.

    1 answer
    1. This product may be stored in room temperature in powder form.

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  2. 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?

  3. 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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