Sigma-Aldrich

Citric Acid, Monohydrate ACS Reagent 99.0% 1 kg

Part Number:
MIL-C1909-1KG
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  • Citric Acid, Monohydrate ACS Reagent 99.0% 1 kg
  • Citric Acid, Monohydrate ACS Reagent 99.0% 1 kg
Price: $209.01

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Description

Citric Acid Monohydrate Acs Reagent ≥99.0% 1 Kg

  • CAS Number 5949-29-1
  • Linear Formula HOC(COOH)(CH2COOH)2 · H2O
  • Molecular Weight 210.14
  • Beilstein/REAXYS Number 4018641
  • EC Number 201-069-1
  • MDL number MFCD00149972
  • PubChem Substance ID 24892446
  • NACRES NA.21
Quality Level 200
grade ACS reagent
assay ≥99.0%
impurities Substances carbonizable by hot sulfuric acid, passes test
  ≤0.005% Insoluble matter
ign. residue ≤0.02%
pKa (1) 3.13, (2) 4.76, (3) 6.4
solubility H2O: soluble 54 % (w/w) at 10 °C (Citric acid in water)
  H2O: 59.2 % (w/w) at 20 °C (Citric acid in water)
  H2O: 84.0 % (w/w) at 100 °C (Citric acid in water)
anion traces chloride (Cl-): ≤0.001%
  oxalate (C2O42-): passes test (limit about 0.05%)
  phosphate (PO43-): ≤0.001%
  sulfate (SO42-): ≤0.002%
cation traces Fe: ≤3 ppm
  Pb: ≤2 ppm
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 is an organic acid. Its molar enthalpy of solution in water has been reported to be ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061±123)Jmol-1. It can be produced by crystallization from mother liquor of citric acid solution at 20-25°C during citric acid synthesis. An investigation of its crystal growth kinetics indicates that growth is linearly dependent on size.

Application

Citric acid monohydrate was used in the preparation of citric acid solution employed in the acetone method of 68Ga pre-purification and radiolabeling technique.
It may be used:
• As release-modifying agent to improve the release of diltiazem hydrochloride from melt extruded Eudragit RS PO tablets.
• To prepare citrate buffer for use in the preparation of platelets for intravital microscopy.
• To prepare Tris-citrate buffer employed for the electrophoresis of bacterial enzymes.

GHS07

Signal word Warning
Hazard statements H319
Precautionary statements P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
RIDADR NONH for all modes of transport
WGK Germany 1
RTECS GE7810000
Flash Point(F) 343.4 °F
Flash Point(C) 173 °C

Documents 

Warnings

Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning

Please note: This product is not returnable.

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MPN:
C1909-1KG