Basic Description

Synonyms	Lead chromate(VI) \| DTXSID1064792 \| LEAD CHROMATE(VI) [MI] \| MFCD00011158 \| dioxido(dioxo)chromium;lead(2+) \| CCRIS 357 \| Lead chrome yellow \| UNII-AA3229AOUS \| Chromate de plomb [French] \| Chromic acid, lead(2+) salt (1:1) \| Phoenicochroite \| AA3229AOUS
Specifications & Purity	AR, ≥98%
Shipped In	Normal
Grade	AR
Product Description	A highly toxic chromate of lead.

Taxonomic Classification

Taxonomy Tree

Kingdom Inorganic compounds
- Superclass Mixed metal/non-metal compounds
  - Class Post-transition metal oxoanionic compounds
    - Subclass Post-transition metal chromates

Kingdom	Inorganic compounds
Superclass	Mixed metal/non-metal compounds
Class	Post-transition metal oxoanionic compounds
Subclass	Post-transition metal chromates
Intermediate Tree Nodes	Not available
Direct Parent	Post-transition metal chromates
Alternative Parents	Miscellaneous chromates Post-transition metal salts Inorganic oxides Inorganic lead salts
Molecular Framework	Not available
Substituents	Post-transition metal chromate - Chromate - Inorganic lead salt - Inorganic post-transition metal salt - Inorganic oxide - Inorganic salt
Description	This compound belongs to the class of inorganic compounds known as post-transition metal chromates. These are inorganic compounds in which the largest oxoanion is chromate, and in which the heaviest atom is a post-transition metal.
External Descriptors	lead coordination entity - chromium coordination entity
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

IUPAC Name	dioxido(dioxo)chromium;lead(2+)
INCHI	InChI=1S/Cr.4O.Pb/q;;;2*-1;+2
InChIKey	MOUPNEIJQCETIW-UHFFFAOYSA-N
Smiles	[O-][Cr](=O)(=O)[O-].[Pb+2]
Isomeric SMILES	[O-][Cr](=O)(=O)[O-].[Pb+2]
WGK Germany	3
RTECS	GB2975000
UN Number	3085
Packing Group	I
Molecular Weight	323.19
Reaxy-Rn	14330587
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14330587&ln=

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

12 results found

Lot Number	Certificate Type	Date	Item
E2521425	Certificate of Analysis	Jun 02, 2025	L112507
E2521452	Certificate of Analysis	Jun 02, 2025	L112507
K2404704	Certificate of Analysis	Nov 12, 2024	L112507
D2425272	Certificate of Analysis	Mar 13, 2024	L112507
D2425387	Certificate of Analysis	Mar 13, 2024	L112507
G2215530	Certificate of Analysis	Jul 18, 2022	L112507
G2215529	Certificate of Analysis	Jul 18, 2022	L112507
G2215528	Certificate of Analysis	Jul 18, 2022	L112507
D2527456	Certificate of Analysis	Jul 18, 2022	L112507
J2425221	Certificate of Analysis	Jul 18, 2022	L112507
J2431153	Certificate of Analysis	Jul 18, 2022	L112507
C2203076	Certificate of Analysis	Mar 12, 2022	L112507

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Chemical and Physical Properties

Sensitivity	Moisture sensitive.
Melt Point(°C)	844°C
Molecular Weight	323.000 g/mol
XLogP3
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	323.897 Da
Monoisotopic Mass	323.897 Da
Topological Polar Surface Area	80.300 Å²
Heavy Atom Count	6
Formal Charge	0
Complexity	62.200
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	2

Citations of This Product

How to Cite Aladdin Scientific Products?

1. Han Gao, Huixin Li, Xinwei Zhou, Jing Wei, Xiaolei Qu, Tao Long. (2023) Effect of low molecular weight organic acids on the lead and chromium release from widely-used lead chromate pigments under sunlight irradiation. ENVIRONMENTAL POLLUTION, 337 (122553).
2. Zhao HaiBo, Liu Peng, Huang YanYan, Zhang HongBin. (2023) Nanocomposites composed of modified natural polymer and inorganic nanomaterial for safe, high-efficiency, multifunctional protection of paper-based relics. Science China-Technological Sciences, 66 (8): (2225-2236).
3. Hongwei Luo, Yu Li, Yaoyao Zhao, Yahui Xiang, Dongqin He, Xiangliang Pan. (2020) Effects of accelerated aging on characteristics, leaching, and toxicity of commercial lead chromate pigmented microplastics. ENVIRONMENTAL POLLUTION, 257 (113475).

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SKU	Size	Availability	Price	Qty
L112507-250g	250g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$35.90
L112507-500g	500g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$60.90

Lead chromate - reagent grade,98.0%, high purity , CAS No.7758-97-6