MilliporeSigma
All Photos(2)

Documents

1.00244

Supelco

Citric acid monohydrate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Sign Into View Organizational & Contract Pricing

Synonym(s):
2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid
Linear Formula:
HOC(COOH)(CH2COOH)2 · H2O
CAS Number:
Molecular Weight:
210.14
Beilstein/REAXYS Number:
4018641
MDL number:
EC Index Number:
201-069-1

grade

ACS reagent

Quality Level

agency

reag. ISO
reag. Ph. Eur.

vapor pressure

<1 Pa ( 25 °C)

product line

EMSURE®

assay

99.5-100.5% anhydrous basis (acidimetric)

form

solid

potency

3000 mg/kg LD50, oral (Rat)

composition

Water, 7.5-8.8% Karl Fischer

impurities

≤200 ppm Sulfated ash
≤50 ppm In water insoluble matter

color

clear
white to almost white

pH

1.85 (25 °C, 50 g/L in H2O)

pKa 

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

mp

135-152 °C

transition temp

flash point 173.9 °C

solubility

880 g/L

density

1.54 g/cm3 at 20 °C

bulk density

800‑1000 kg/m3

anion traces

chloride (Cl-): ≤5 ppm
oxalate (as oxalic acid): ≤50 ppm
phosphate (PO43-): ≤10 ppm
sulfate (SO42-): ≤20 ppm

cation traces

Al: ≤0.2 ppm
As: ≤1 ppm
Cu: ≤5 ppm
Fe: ≤3 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
heavy metals (as Pb): ≤5 ppm

storage temp.

2-30°C

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application


  • Biopolymeric Blends of Thermoplastic Starch and Polylactide as Sustainable Packaging Materials: This publication uses citric acid monohydrate in the synthesis of biodegradable polymers, highlighting its utility in developing sustainable materials within the industrial manufacturing and environmental sectors (Jozinović A et al., 2024).

Linkage

Replaces: CX1725-1; CX1725-3; CX1725

Analysis Note

Assay (acidimetric, calc. on anhydrous substance): 99.5 - 100.5 %
Identity (IR-spectrum): passes test
Appearance: white to almost white or colorless crystals
Appearance of solution (200 g/l; water): clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇
In water insoluble matter: ≤ 50 ppm
Chloride (Cl): ≤ 5 ppm
Phosphate (PO₄): ≤ 10 ppm
Sulphate (SO₄): ≤ 20 ppm
Heavy metals (as Pb): ≤ 5 ppm
Al (Aluminium): ≤ 0.2 ppm
As (Arsenic): ≤ 1 ppm
Hg (Mercury): ≤ 1 ppm
Cu (Copper): ≤ 5 ppm
Fe (Iron): ≤ 3 ppm
Fe (Iron, acc. to Reag. Ph  Eur.): suitable to use in the limit test for iron
Pb (Lead): ≤ 0.5 ppm
Oxalates (as C₂H₂O₄): ≤ 50 ppm
Readily carbonisable substance: passes test
Sulfated ash: ≤ 200 ppm
Water (according to Karl Fischer): 7.5 - 8.8 %
Corresponds to ACS, ISO 6353/2, Reag. Ph. Eur.

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

345.0 °F - closed cup

flash_point_c

173.9 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

Sodium citrate, dihydrate for analysis EMSURE&#174; ACS,ISO,Reag. Ph Eur

Supelco

1.06448

Sodium citrate, dihydrate

Citric acid anhydrous powder, EMPROVE&#174; ESSENTIAL, Ph. Eur., BP, JP, USP, FCC, E 330

SAFC

1.00241

Citric acid

Citric acid ACS reagent, &#8805;99.5%

Sigma-Aldrich

251275

Citric acid

Citric acid anhydrous powder, EMPROVE&#174; EXPERT, Ph. Eur., BP, ChP, JP, USP

SAFC

1.37002

Citric acid

Citric acid, Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1071

Citric acid, Anhydrous

Citric acid meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)

Sigma-Aldrich

27109

Citric acid

Citric acid 99%

Sigma-Aldrich

C0759

Citric acid

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service