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

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
1231204074
1231204054
1231204044
32221110034
3221110034

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

Rachele M Pojednic et al.
Calcified tissue international, 96(3), 256-263 (2014-12-07)
Vitamin D receptor (VDR) expression and action in non-human skeletal muscle have recently been reported in several studies, yet data on the activity and expression of VDR in human muscle cells are scarce. We conducted a series of studies to
M Lieveld et al.
Virchows Archiv : an international journal of pathology, 465(6), 703-713 (2014-10-12)
Giant cell tumor of bone (GCTB) displays worrisome clinical features such as local recurrence and occasionally metastatic disease which are unpredictable by morphology. Additional routinely usable biomarkers do not exist. Gene expression profiles of six clinically defined groups of GCTB
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
Katrin Linke et al.
Biochimica et biophysica acta, 1837(1), 14-32 (2013-08-28)
Water is clearly important for the functioning of Photosystem II (PSII). Apart from being the very substrate that needs to be transported in this water oxidation enzyme, water is also vital for the transport of protons to and from the
Liming Zhou et al.
Nature, 509(7498), 86-90 (2014-04-25)
Tropical forests are global epicentres of biodiversity and important modulators of climate change, and are mainly constrained by rainfall patterns. The severe short-term droughts that occurred recently in Amazonia have drawn attention to the vulnerability of tropical forests to climatic
View All Related Papers

Articles

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