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
71497
Sodium citrate monobasic
BioXtra, anhydrous, ≥99.5% (T)
Sinónimos:
Citric acid monosodium salt, Sodium dihydrogen citrate
Seleccione un Tamaño
| Tamaño de envase | SKU | Disponibilidad | Precio |
|---|---|---|---|
| 250 g | Comprobar disponibilidad del carrito | $104.000 | |
| 1 kg | Comprobar disponibilidad del carrito | $362.000 |
Acerca de este artículo
Quality Level
product line
BioXtra
assay
≥99.5% (T)
form
crystals
impurities
insoluble matter, passes filter test, ≤0.2% water
pH
3.5-4.0 (25 °C, 0.25 M in H2O)
solubility
H2O: 0.25 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Al: ≤5 mg/kg, As: ≤0.1 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: ≤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
0.25 M in H2O
SMILES string
[Na+].OC(=O)CC(O)(CC([O-])=O)C(O)=O
InChI
1S/C6H8O7.Na/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);/q;+1/p-1
InChI key
HWPKGOGLCKPRLZ-UHFFFAOYSA-M
Application
1 of 1
Este artículo | |||
|---|---|---|---|
| form crystals | form crystals | form crystals | form crystals |
| solubility H2O: 0.25 M at 20 °C, clear, colorless | solubility water: soluble 263.1 g/L | solubility water: very soluble 24.9 g/L at 20 °C | solubility H2O: 0.1 M at 20 °C, clear, colorless |
| assay ≥99.5% (T) | assay ≥99.0% (T) | assay ≥99.0% (NT) | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| impurities insoluble matter, passes filter test, ≤0.2% water | impurities - | impurities - | impurities DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected, 11-13% Water (Karl Fischer) |
| anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg | anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg | anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg | anion traces chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg |
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Número de artículo de comercio global
| SKU | GTIN |
|---|---|
| 71497-1KG | 04061832848761 |
| 71497-250G | 04061832848778 |
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How can I determine the shelf life / expiration / retest date of this product?
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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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