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NIST981

Common lead isotopic standard

NIST® SRM® 981

Synonym(s):

Lead

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About This Item

Empirical Formula (Hill Notation):
Pb
CAS Number:
7439-92-1
Molecular Weight:
207.20
NACRES:
NA.24
PubChem Substance ID:
329818795
UNSPSC Code:
41116107
MDL number:
MFCD00134050

Key Documents

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Product Name

Common lead isotopic standard, NIST® SRM® 981

InChI

1S/Pb

SMILES string

[Pb]

InChI key

WABPQHHGFIMREM-UHFFFAOYSA-N

grade

certified reference material

isotopic purity

 204Pb
 206Pb
 207Pb
 208Pb

packaging

pkg of 1 g wire

manufacturer/tradename

NIST®

resistivity

20.65 μΩ-cm

bp

1740 °C (lit.)

mp

327.4 °C (lit.)

format

matrix material

Application

The standard reference material (SRM) is primarily intended for use as an isotopic standard.

Features and Benefits

  • SRM 981 consists of isotopic compositions of lead. 
  • Certified values are measured by triple filament solid sample mass spectrometry.

General description

SRM 981_cert

SRM 981_SDS
This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

Other Notes

Certified for the analytes listed below.
Lead (204Pb, 206Pb, 207Pb, 208Pb)

See certificate for values and more details at nist.gov/SRM.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

pictograms

Health hazardEnvironment
GHS08,GHS09

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Lact. - Repr. 1A - STOT RE 1 Oral

target_organs

Central nervous system,Blood,Immune system,Kidney

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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’.

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