永久黄

Description

Permanent Yellow · CAS 10294-40-3 · BaCrO4. UNII 7D7O9CF0IX. Melting Point: 1400 °C (decomposes); Melting Point: 1380 °C; Solubility: In water, 0.00026 g/100 mL at 20 °C.

Identification

CAS Registry Number	10294-40-3
PubChem CID	25136
Molecular formula	BaCrO4
IUPAC name	barium(2+);dioxido(dioxo)chromium
UNII (FDA)	7D7O9CF0IX

Computed Descriptors

Molecular Weight	253.32
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	253.825410
Monoisotopic Mass	253.825410
Topological Polar Surface Area	80.3
Heavy Atom Count	6
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Melting Point	1400 °C (decomposes)
Melting Point	1380 °C
Solubility	In water, 0.00026 g/100 mL at 20 °C
Density	4.498 at 15 °C
Density	4.5 g/cm³
Density	4.498 @25 °C
Formulations/Preparations	98.5% min

Physical description & handling notes

• Other Solid
• Yellow solid; [Merck Index] Yellow odorless powder; Insoluble in water; [MSDSonline]
• YELLOW CRYSTALS.
• Heavy, pale-yellow crystalline powder
• Yellow heavy monoclinic orthorhombic crystals
• Greenish-yellow crystals

GHS Hazard Classification

Reported hazard statements	H272 (14.8%), H301, H311 (20.4%), H302 (72.4%), H317 (38.3%), H330 (23.3%), H332 (70%), H334 (26.7%)

Documented Uses

• Used as a pigment (artists' colors and colorant in glass, ceramics, and porcelain), corrosion inhibitor (jointing pastes and metal primers); Also used in pyrotechnics, fuses, safety matches, ignition control devices, and high-temperature batteries; [HSDB] Used in corrosion-resistant paints; [Ullmann]
• Battery Manufacturing [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Glass Manufacturing [Category: Industry]
• Ceramics making [Category: Hobbies]
• Glassblowing [Category: Hobbies]

Synonyms

BARIUM CHROMATE; 10294-40-3; Lemon chrome; Lemon Yellow; Permanent Yellow; Baryta Yellow; Ultramarine Yellow; Barium chromate(VI); Barium chromate (1:1); Barium chromium oxide (BaCrO4); CI 77103; Chromic acid, barium salt (1:1); C.I. 77103; 7D7O9CF0IX; Chromic acid (H2CrO4), barium salt (1:1); DTXSID1051517

Frequently Asked Questions

What are the CAS number and molecular formula of Permanent Yellow?

CAS 10294-40-3; molecular formula BaCrO4; molecular weight — g/mol.

What other names is Permanent Yellow known by?

BARIUM CHROMATE, 10294-40-3, Lemon chrome, Lemon Yellow, Permanent Yellow, Baryta Yellow.

Is Permanent Yellow classified as hazardous?

Hazard statements reported: H272, H301, H311, H302, H317.

What are the key physical properties of Permanent Yellow?

Melting Point: 1400 °C (decomposes); Melting Point: 1380 °C; Solubility: In water, 0.00026 g/100 mL at 20 °C; Density: 4.498 at 15 °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.