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Merck
CN

33114

柠檬酸 一水合物

ACS reagent grade, 99.5-102%, solid, puriss. p.a., reag. ISO, reag. Ph. Eur., buffer substance

别名:

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

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关于此项目

线性分子式:
HOC(COOH)(CH2COOH)2 · H2O
化学文摘社编号:
5949-29-1
分子量:
210.14
NACRES:
NA.21
PubChem Substance ID:
57648756
UNSPSC Code:
12352100
EC Number:
201-069-1
MDL number:
MFCD00149972
Beilstein/REAXYS Number:
4018641
Assay:
99.5-100.5% (calc. on anhydrous substance), 99.5-102%
Form:
solid

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产品名称

柠檬酸 一水合物, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, 99.5-102%

InChI key

YASYEJJMZJALEJ-UHFFFAOYSA-N

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

SMILES string

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

grade

ACS reagent, puriss. p.a.

agency

USP/NF, reag. ISO, reag. Ph. Eur.

assay

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

form

solid

impurities

≤0.005% insolubles in water, ≤2 ppm heavy metals (as Pb), 7.5-9.0% water (Karl Fischer)

ign. residue

≤0.01% (as SO4)

pKa 

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

anion traces

chloride (Cl-): ≤5 mg/kg, oxalate (C2O42-): ≤100 ppm, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤20 ppm

cation traces

Ca: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe: ≤3 ppm, Pb: ≤2 ppm, Zn: ≤5 mg/kg

suitability

complies for appearance of solution, complies for reaction against H2SO4

functional group

carboxylic acid

Quality Level

200

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General description

柠檬酸一水合物是一种有机酸。据报道，它在水中的溶液摩尔焓是 ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061 ± 123)Jmol-1。

Application

柠檬酸一水合物可用于制备生物实验方案中的柠檬酸三钾缓冲液 和Otto I分离缓冲液。 它还可用于改善熔融挤出的基质片剂中盐酸地尔硫的释放。

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

345.0 °F - closed cup

flash_point_c

173.9 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCP0211
BCCN3805
SDBB2149
STBL3472
SDBB0355

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