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Key Documents

C0706

Sigma-Aldrich

Citric acid monohydrate

BioXtra, ≥99.5%

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About This Item

Linear Formula:
HOC(COOH)(CH2COOH)2 · H2O
CAS Number:
Molecular Weight:
210.14
Beilstein:
4018641
EC Number:
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:
NACRES:
NA.25

product line

BioXtra

Quality Level

Assay

≥99.5%

form

powder

impurities

≤0.002% Phosphorus (P)
≤0.005% Insoluble matter

ash

≤0.02%

pH

1.85 (25 °C, 50 g/L)

pKa 

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

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

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

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General description

Citric acid is one of the fruits acids. It is present in various citrus fruits and vegetables.

Application

Citric acid monohydrate has been used:
  • as carbon source of carbon nanodot synthesis
  • in the preparation of citric acid monohydrate solution/buffer of pH-6.0 for tissue sample preparation
  • to treat various samples in citric acid solubilisation technique

Biochem/physiol Actions

Citric acid plays a major role in textile, food, pharmaceutical, metal and chemical industries. Melting citric acid monohydrate can give rise to itaconic anhydride. The crystals of citric acid monohydrate has the ability to preserve water up to 56 degree celsius.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

345.0 °F - closed cup

Flash Point(C)

173.9 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Citric Acid (2014)
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Briggs MT, et al.
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A switchable peroxidase mimic derived from the reversible co-assembly of cytochrome c and carbon dots
Essner JB, et al.
Journal of Material Chemistry B: Materials for Biology and Medicine, 4(12), 2163-2170 (2016)
An investigation into the microflora of heroin
McLauchlin J, et al.
Journal of Medical Microbiology, 51(11), 1001-1008 (2002)
Karolina Hus et al.
Frontiers in plant science, 11, 614-614 (2020-06-09)
The CRISPR/Cas9 system enables precise genome editing and is a useful tool for functional genomic studies. Here we report a detailed protocol for targeted genome editing in the model grass Brachypodium distachyon and its allotetraploid relative B. hybridum, describing gRNA

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