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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
1.06448
Sodium citrate, dihydrate
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonym(s):
Sodium citrate tribasic dihydrate, Trisodium Citrate, Sodium Citrate, Dihydrate, Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
500 g | Check Cart for Availability | $89.70 |
1 kg | Check Cart for Availability | $138.00 |
5 kg | Check Cart for Availability | $369.00 |
25 kg | Check Cart for Availability | $1,550.00 |
About This Item
grade
ACS reagent
Quality Segment
agency
reag. ISO, reag. Ph. Eur.
product line
EMSURE®
assay
99.0-101.0% (perchloric acid titration), 99.0-101.0% anhydrous basis (perchloric acid titration)
form
solid
potency
>8000 mg/kg LD50, oral (Rat)
composition
Water, 11-13%
impurities
≤0.005% Insoluble matter
pH
7.5-9.0 (25 °C, 50 g/L in H2O)
mp
150 °C (anhydrous substance), >300 °C (lit.)
bulk density
600 kg/m3
anion traces
chloride (Cl-): ≤0.001%, oxalate (C2O42-): ≤0.0300%, phosphate (PO43-): ≤0.002%, sulfate (SO42-): ≤0.004%
cation traces
Ca: ≤0.005%, Fe: ≤0.0005%, N: ≤0.001%, NH4+: ≤0.003%, heavy metals: ≤0.0005%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O
InChI
1S/C6H8O7.3Na.2H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;2*1H2/q;3*+1;;/p-3
InChI key
NLJMYIDDQXHKNR-UHFFFAOYSA-K
Application
- Template in the preparation of cobalt oxide (Co3O4) anode materials via hydrothermal method.
- Complexing agent in the synthesis of CdS nanocrystalline thin films.
- Reducing agent in the synthesis of citrate-capped gold nanoparticles.
- Buffering agent to maintain stable pH levels in desloratadine syrup formulation.
Analysis Note
Assay (Perchloric acid titration, calc. on anhydrous substance): 99.0 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water; 25 °C): 7.5 - 9.0
Acidity or alkalinity: passes test
Chloride (Cl): ≤ 0.001 %
Oxalate (C₂O₄): ≤ 0.0300 %
Phosphate (PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.004 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
NH₃ (Ammonia): ≤ 0.003 %
Readily carbonisable substance: passes test
Water: 11.0 - 13.0 %
Corresponds to ACS,ISO,Reag. Ph Eur
Other Notes
Legal Information
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Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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