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C7129

Citronensäure Monohydrat

reagent grade, ≥98% (GC/titration), powder

Citric acid monohydrate

Synonym(e):

2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate

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PackungsgrößeSKUVerfügbarkeitPreis
100 g
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€ 38,10
500 g
Warenkorb auf Verfügbarkeit prüfen
€ 57,20
1 kg
Warenkorb auf Verfügbarkeit prüfen
€ 75,20
5 kg
Warenkorb auf Verfügbarkeit prüfen
€ 176,00

Über diesen Artikel

Lineare Formel:
HOC(COOH)(CH2COOH)2 · H2O
CAS-Nummer:
Molekulargewicht:
210.14
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
201-069-1
MDL number:
Beilstein/REAXYS Number:
4018641
Assay:
≥98% (GC/titration)
Form:
powder
Grade:
reagent grade

€ 38,10


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Produktname

Citronensäure Monohydrat, reagent grade, ≥98% (GC/titration)

grade

reagent grade

Quality Level

assay

≥98% (GC/titration)

form

powder

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

solubility

H2O: 100 mg/mL, clear, colorless (Turbidity)

functional group

carboxylic acid

SMILES string

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

InChI key

YASYEJJMZJALEJ-UHFFFAOYSA-N

General description

Citric acid monohydrate(CAM) is an organic acid. It can be produced by crystallization from mother liquor of citric acid solution at 20-25°C during citric acid synthesis. Its molar enthalpy of solution in water has been reported to be ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061±123)Jmol-1. An investigation of its crystal growth kinetics indicates that growth is linearly dependent on size.

Application

Citric acid monohydrate may be used:
  • To prepare citric acid solution employed in the acetone method of 68Ga pre-purification and radiolabeling technique.[1]
  • To prepare Tris-citrate buffer employed for the electrophoresis of bacterial enzymes.[2]
  • To improve the release of diltiazem hydrochloride from melt extruded matrix tablets.[3]

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Dieser Artikel
33114271021.00243
grade

reagent grade

grade

ACS reagent, puriss. p.a.

grade

-

grade

-

assay

≥98% (GC/titration)

assay

99.5-100.5% (calc. on anhydrous substance), 99.5-102%

assay

99.5-100.5% (based on anhydrous substance)

assay

-

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

500

form

powder

form

solid

form

grit

form

fine powder

solubility

H2O: 100 mg/mL, clear, colorless (Turbidity)

solubility

-

solubility

-

solubility

880 g/L

functional group

carboxylic acid

functional group

carboxylic acid

functional group

carboxylic acid

functional group

-


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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Lagerklasse

11 - Combustible Solids

flash_point_f

345.0 °F - closed cup

flash_point_c

173.9 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Size dependency of citric acid monohydrate growth kinetics.
Bravi M and Mazzarotta B.
Chemical Engineering Journal, 70(3), 203-207 (1998)
Michael K Schultz et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 76, 46-54 (2012-10-03)
A new NaCl based method for preparation of gallium-68 labeled radiopharmaceuticals has been adapted for use with an automated gallium-68 generator system. The method was evaluated based on 56 preparations of [(68)Ga]DOTATOC and compared to a similar acetone-based approach. Advantages
Methods of multilocus enzyme electrophoresis for bacterial population genetics and systematics.
R K Selander et al.
Applied and environmental microbiology, 51(5), 873-884 (1986-05-01)



Global Trade Item Number

SKUGTIN
C7129-500G04061835321049
C7129-5KG04061833511954
C7129-1KG04061833511947
C7129-10MG04061832996745
C7129-100G04061833511930

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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