Skip to Content
Merck
All Photos(1)

Documents

DENWAT

Pure Water Density Standard

UKAS ISO/IEC17025 and ISO Guide 34 certified, density: 0.9982 g/mL at 20 °C, density: 0.9970 g/mL at 25 °C

Synonym(s):

Water

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
H2O
CAS Number:
7732-18-5
Molecular Weight:
18.02
Beilstein:
2050024
EC Number:
231-791-2
MDL number:
MFCD00011332
UNSPSC Code:
41116107
PubChem Substance ID:
329798917
NACRES:
NA.24

grade

certified reference material

Quality Level

100

Agency

according to ASTM® D1480

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

Paragon Scientific Ltd

refractive index

n20/D 1.34 (lit.)

bp

100 °C (lit.)

mp

0 °C (lit.)

density

0.9982 g/mL at 20 °C
0.9970 g/mL at 25 °C
1.000 g/mL at 3.98 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
industrial qc
personal care
petroleum

format

mixture

SMILES string

O

InChI

1S/H2O/h1H2

InChI key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Please note that the value stated on this page is nominal. All certified values for the current lots of all Paragon Density Standards can be found on the Paragon Scientific webpageThis product is a certified reference material (CRM) certified to International Standards BS EN ISO / IEC 17025

Application

This pure water density CRM is designed for the calibration of instruments used to measure density. And although typically used, it is not limited to the verification of digital density meters.

Features and Benefits

  • Manufactured and verified in an ISO 17025 and ISO 17034 accredited laboratory, as per UKAS
  • Carries an associated uncertainty of +/- 0.01%
  • Certified density value following ASTM D1480
  • Provided in a tamper-evident packaging to assure safe delivery
  • Meets the definition of Type II in the specification ASTM D1193
  • Accompanied with a certificate of analysis (CoA) having information on expiry date and storage conditions for an effective audit

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials

Storage Class Code

10 - Combustible liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
1242404106
1242404086
1242404076
5230706015
5230706114

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 2

1 of 2

vibrant-m

DEN2009

Density Standard (20 °C)

Water Nuclease-Free Water, for Molecular Biology

Sigma-Aldrich

W4502

Water

Susu Duan et al.
Nature communications, 5, 5029-5029 (2014-10-10)
Oseltamivir-resistant H1N1 influenza viruses carrying the H275Y neuraminidase mutation predominated worldwide during the 2007-2009 seasons. Although several neuraminidase substitutions were found to be necessary to counteract the adverse effects of H275Y, the order and impact of evolutionary events involved remain
Lydia E H Paul et al.
Organic & biomolecular chemistry, 13(3), 946-953 (2014-11-21)
Interactions between three hexacationic arene ruthenium metallaprisms, [(p-cymene)6Ru6(tpt)2(dhnq)3](6+), [(p-cymene)6Ru6(tpt)2(dhbq)3](6+) and [(p-cymene)6Ru6(tpt)2(oxa)3](6+), and a series of human proteins including human serum albumin, transferrin, cytochrome c, myoglobin and ubiquitin have been studied using NMR spectroscopy, mass spectrometry and circular dichroism spectroscopy. All
Mary A Rodgers et al.
The Journal of experimental medicine, 211(7), 1333-1347 (2014-06-25)
Linear ubiquitination is a newly discovered posttranslational modification that is currently restricted to a small number of known protein substrates. The linear ubiquitination assembly complex (LUBAC), consisting of HOIL-1L, HOIP, and Sharpin, has been reported to activate NF-κB-mediated transcription in
Boris Nowka et al.
Applied and environmental microbiology, 81(2), 745-753 (2014-11-16)
Nitrification has an immense impact on nitrogen cycling in natural ecosystems and in wastewater treatment plants. Mathematical models function as tools to capture the complexity of these biological systems, but kinetic parameters especially of nitrite-oxidizing bacteria (NOB) are lacking because
Yasushi Itoh et al.
PLoS pathogens, 10(6), e1004192-e1004192 (2014-06-20)
Highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype often cause severe pneumonia and multiple organ failure in humans, with reported case fatality rates of more than 60%. To develop a clinical antibody therapy, we generated a human-mouse chimeric
View All Related Papers

Protocols

GC Analysis of Permanent Gases and Light Hydrocarbons on Carboxen-1006 PLOT and a Packed Column (Carboxen® 1004)

Separation of Methane; Acetylene; Carbon monoxide; Water; Nitrogen; Carbon dioxide; Ethane; Ethylene

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