ChemicalBook >  Product Catalog >  Inorganic chemistry >  Inorganic salts >  Metal salts >  Lead chromate

Lead chromate

Basic information Physical Properties Occurrence and Uses Production Toxicity Safety Related Supplier

Lead chromate Basic information

Product Name:
Lead chromate
CAS:
7758-97-6
MF:
CrO4Pb
MW:
323.19
EINECS:
231-846-0
Mol File:
7758-97-6.mol
More
Less

Lead chromate Chemical Properties

Melting point:
844°C
Density 
6,3 g/cm3
form 
sintered
color 
Yellow
Water Solubility 
Insoluble. <0.1 g/100 mL at 19 ºC
Merck 
14,5405
Stability:
Stable. Reacts violently with ferric ferrocyanide.
CAS DataBase Reference
7758-97-6(CAS DataBase Reference)
EPA Substance Registry System
Lead(II) chromate (7758-97-6)
More
Less

Safety Information

Hazard Codes 
T,N
Risk Statements 
61-33-40-50/53-62-45
Safety Statements 
53-45-60-61
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
GB2975000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
Hazardous Substances Data
7758-97-6(Hazardous Substances Data)

MSDS

More
Less

Lead chromate Usage And Synthesis

Physical Properties

Yellow monoclinic crystals; refractive index 2.31; density 6.12 g/cm3; melts at 844°C; decomposes on further heating; insoluble in water; also insoluble in ammonia and acetic acid; soluble in acids and alkalies.

Occurrence and Uses

Lead chromate occurs in nature as the minerals, crocoite and phoenicochroite. It is an important pigment of lead used in oil paints and water colors. It is used for printing textiles and coloring porcelain.

Production

Lead chromate is found naturally in minerals crocoite and phoenicochroite. It also is readily prepared by adding a soluble chromate such as sodium or potassium chromate to a solution of lead nitrate, lead acetate or other soluble lead(II) salt in neutral or slightly acidic solution:
Pb2+ + CrO4 → PbCrO4
The yellow precipitate is filtered, washed and dried.

Toxicity

Moderately toxic by intraperitoneal route. The effects, however, are mild from oral intake. Occupational exposure may cause cancer. There is sufficient evidence of carcinogenicity in animals and humans.

Chemical Properties

yellow to orange powder

Chemical Properties

Lead chromate is an orange or orange-yellow crystalline solid or powder.

Uses

It is used in chemical analysis of organic substances.

Uses

Pigment for paints and inks; in oil and water colors; printing fabrics, decorating china and porcelain; in chemical analysis of organic substances; in traffic paints.

Uses

Lead chromate (PbCrO4) is found in nature as yellow crystals in the mineral crocoite. It can be produced by reacting lead chloride and sodium dichromate. It is a popular and safe yellow pigment.

Definition

ChEBI: A chromium coordination entity comprising chromate and lead(2+) ions in a 1:1 ratio

Potential Exposure

Lead chromate is used to make paint pigments for wood and metal

Shipping

UN3085 Oxidizing solid, corrosive, n.o.s, Hazard Class: 5.1; Labels: 5.1-Oxidizer, 8-Corrosive material, Technical Name Required.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, and active metals; hydrazine, sodium, and potassium; organics at elevated temperature. Reacts with aluminum dinitronaphthalene, iron(III) hexacyanoferrate (IV)

More
Less

Lead chromateSupplierMore

Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel:
86-21-50328103 * 801、802、803、804 Mobile:18930552037
Email:
3bsc@sina.com
Alfa Aesar
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
BeiJing Hwrk Chemicals Limted
Tel:
21-51691807-
Email:
peter.shi@hwrkchemical.com;
Energy Chemical
Tel:
021-58432009 / 400-005-6266
Email:
info@energy-chemical.com
Basic information Physical Properties Occurrence and Uses Production Toxicity Safety Related Supplier