磺基铬酸铅黄

Description

lead sulfochromate yellow · CAS 1344-37-2 · CrO8Pb2S. Melting Point: >800 °C; Density: 5.6 g/cu cm at 20 °C.

Identification

CAS Registry Number	1344-37-2
PubChem CID	138394846
Molecular formula	CrO8Pb2S
IUPAC name	dioxido(dioxo)chromium;bis(lead(2+));sulfate

Computed Descriptors

Molecular Weight	6.3e+02
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	627.82520
Monoisotopic Mass	627.82520
Topological Polar Surface Area	169
Heavy Atom Count	12
Formal Charge	0
Complexity	124

Physical & Chemical Properties

Melting Point	>800 °C
Density	5.6 g/cu cm at 20 °C

Physical description & handling notes

• Dry Powder; Dry Powder; Large Crystals
• Solid; Insoluble in water at 20 deg C; [IUCLID] Yellow odorless powder; [MSDSonline]
• Yellow or greenish-yellow orthorhombic or monoclinic solid
• Yellow powder
• Odorless
• Water solubility: for samples representing C.I. Pigment Yellow 34, dissolved lead concentration was found to be 36.8 ug/L after 28 days at a loading rate of 1 mg/L at 22 °C

GHS Hazard Classification

Reported hazard statements	H317, H334, H340, H350, H360, H370, H372, H331

Documented Uses

• Used as pigment in paints, printing inks, vinyl, cellulose acetate plastics, textile printing, leather finishes, linoleum, paper, and artists' colors; [HSDB]
• Pulp and Paper Processing [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• ...these pigments are used for applications that require safety attributes such as high visibility and so are used in traffic paint striping for highways and airports, and safety identification paints on buses, ambulances and fire trucks. Industrial paints using lead chromate pigments include automotive finishes, industrial and agricultural equipment, industrial baking enamels and air-dried finishes...
• PIGMENT IN PAINTS, PRINTING INKS, VINYL, CELLULOSE ACETATE PLASTICS, TEXTILE PRINTING, LEATHER FINISHES, LINOLEUM, PAPER, & ARTIST'S COLORS

Synonyms

Chromium orange; Primrose yellow; Primrose Chrome; Middle Chrome; Chrome Yellow G; Chrome Yellow 4G; Chrome Yellow 5G; Light chrome yellow; Middle Chrome BHG; Chromastral Green M; Chromastral Green Y; Chrome Yellow 5GF; Chrome Yellow Lemon; Chrome Yellow Light; Vynamon Yellow CRN; Chrome Yellow 10G

Frequently Asked Questions

What are the CAS number and molecular formula of lead sulfochromate yellow?

CAS 1344-37-2; molecular formula CrO8Pb2S; molecular weight — g/mol.

What other names is lead sulfochromate yellow known by?

Chromium orange, Primrose yellow, Primrose Chrome, Middle Chrome, Chrome Yellow G, Chrome Yellow 4G.

Is lead sulfochromate yellow classified as hazardous?

Hazard statements reported: H317, H334, H340, H350, H360.

What are the key physical properties of lead sulfochromate yellow?

Melting Point: >800 °C; Density: 5.6 g/cu cm at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.