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Merck

C0759

Citric acid

99%, crystals

동의어(들):

2-Hydroxy-1,2,3-propanetricarboxylic acid, 2-Hydroxypropan-1,2,3-tricarboxylic acid

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제품정보 (DICE 배송 시 비용 별도)

Linear Formula:
HOC(COOH)(CH2COOH)2
CAS 번호:
Molecular Weight:
192.12
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021801
UNSPSC Code:
12352100
EC Number:
201-069-1
MDL number:
Beilstein/REAXYS Number:
782061
Assay:
99%
Concentration:
≤100%
Form:
crystals
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제품 이름

Citric acid, 99%

InChI key

KRKNYBCHXYNGOX-UHFFFAOYSA-N

InChI

1S/C6H8O7/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)

SMILES string

OC(=O)CC(O)(CC(O)=O)C(O)=O

vapor pressure

≤ 0.1 hPa ( at 25 °C)

assay

99%

form

crystals

expl. lim.

8 %, 65 °F

concentration

≤100%

pH

ca.1,7-at 100 g/l-at 20 °C

pKa (25 °C)

(1) 3.13, (2) 4.76, (3) 6.40

pKa 

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

bp

200 °C/at 1.013 hPa (decomposition)

mp

153-159 °C (lit.)

solubility

water: soluble 383 g/L at 25 °C

density

1,67 g/cm3 at at 20 °C

functional group

carboxylic acid, hydroxyl

Quality Level

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관련 카테고리

General description

Citric acid is a natural component widely usedin many industrial applications such as chelation, buffering, pH adjustment,and derivatization. It can also be used as a reagent in condensation, acidcatalysis, cycloaddition, deprotection, and decarboxylation reactions.

Application

Citric acid can be used as a reactant to synthesize:
  • Trialkyl citrates via sulfuric acid-catalyzed esterification with aliphatic alcohols C2-C5.
  • Biodegradable thermoset polymer via catalyst-free polycondensation reaction.
It can also be used as a catalyst to synthesize amido alkyl naphthols by reacting 2-naphthols, aldehydes, and amides/ureas.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

저장 등급

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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문서 라이브러리 방문

A method for decalcification with citric acid.
Foschini MP and Muzzi L.
Biotechnic & Histochemistry, 68(1), 42-45 (1993)
Determination of citric acid in fats.
Ohlson R, et al.
Journal of the American Oil Chemists' Society, 45(6), 475-476 (1968)
Wheat straw hemicellulose films as affected by citric acid.
Azeredo HMC, et al.
Food Hydrocolloids, 50 (2015)
Factors affecting the successful cryopreservation of honey bee (Apis mellifera) spermatozoa.
Hopkins BK and Herr C.
Apidologie, 41(5), 548-556 (2010)
Trisha Pasricha et al.
Endoscopy, 46(7), 614-618 (2014-05-23)
Capsule endoscopy is an attractive alternative to colorectal cancer screening by conventional colonoscopy, but is currently limited by compromised mucosal visibility because of the lack of safe, controlled colonic insufflation. We have therefore developed a novel system of untethered, wireless-controlled

문서

Citrate is one of many cell culture components that affects the performance of serum-free, protein-free and animal protein-free cell culture systems used for biomanufacturing heterologous proteins such as monoclonal antibodies.

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