NIST981

Common lead isotopic standard

NIST^® SRM^® 981

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

Properties

• 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
• SMILES string: [Pb]
• InChI: 1S/Pb
• InChI key: WABPQHHGFIMREM-UHFFFAOYSA-N

Description

General description

SRM 981_cert

SRM 981_SDS

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.

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

Safety Information

• Pictograms: GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H360FD,H362,H372,H410
• Precautionary Statements: P202 - P260 - P263 - P264 - P273 - P308 + P313
• 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 Code: 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