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
33114
Ácido cítrico monohydrate
ACS reagent grade, 99.5-102%, solid, puriss. p.a., reag. ISO, reag. Ph. Eur., buffer substance
Sinónimos:
2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate
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Nombre del producto
Ácido cítrico monohydrate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, 99.5-102%
grado
ACS reagent
puriss. p.a.
Nivel de calidad
Agency
USP/NF
reag. ISO
reag. Ph. Eur.
Ensayo
99.5-100.5% (calc. on anhydrous substance)
99.5-102%
Formulario
solid
impurezas
≤0.005% insolubles in water
≤2 ppm heavy metals (as Pb)
7.5-9.0% water (Karl Fischer)
residuo de ign.
≤0.01% (as SO4)
pKa
(1) 3.13, (2) 4.76, (3) 6.4
trazas de anión
chloride (Cl-): ≤5 mg/kg
oxalate (C2O42-): ≤100 ppm
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤20 ppm
trazas de catión
Ca: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤3 ppm
Pb: ≤2 ppm
Zn: ≤5 mg/kg
idoneidad
complies for appearance of solution
complies for reaction against H2SO4
grupo funcional
carboxylic acid
cadena SMILES
OC(CC(O)(C(O)=O)CC(O)=O)=O.O
InChI
1S/C6H8O7.H2O/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);1H2
Clave InChI
YASYEJJMZJALEJ-UHFFFAOYSA-N
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Este artículo | 27102 | C1909 | C7129 |
|---|---|---|---|
| grade ACS reagent, puriss. p.a. | grade - | grade ACS reagent | grade reagent grade |
| assay 99.5-100.5% (calc. on anhydrous substance), 99.5-102% | assay 99.5-100.5% (based on anhydrous substance) | assay ≥99.0% | assay ≥98% (GC/titration) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| agency USP/NF, reag. Ph. Eur., reag. ISO | agency - | agency - | agency - |
| form solid | form grit | form powder | form powder |
| anion traces chloride (Cl-): ≤5 mg/kg, phosphate (PO43-): ≤10 mg/kg, oxalate (C2O42-): ≤50 ppm, sulfate (SO42-): ≤20 ppm | anion traces chloride (Cl-): ≤50 mg/kg, oxalate (as oxalic acid): ≤100 mg/kg, sulfate (SO42-): ≤100 mg/kg | anion traces chloride (Cl-): ≤0.001%, oxalate (C2O42-): passes test (limit about 0.05%), phosphate (PO43-): ≤0.001%, sulfate (SO42-): ≤0.002% | anion traces - |
Descripción general
Palabra de señalización
Warning
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2 - STOT SE 3
Órganos de actuación
Respiratory system
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
345.0 °F - closed cup
Punto de inflamabilidad (°C)
173.9 °C - closed cup
Equipo de protección personal
dust mask type N95 (US), Eyeshields, Gloves
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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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