Physical Properties Occurrence and Uses History Production Toxicity
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Lead chromate

Physical Properties Occurrence and Uses History Production Toxicity
Product Name
Lead chromate
CAS No.
7758-97-6
Chemical Name
Lead chromate
Synonyms
CHROME YELLOW;chromelemon;parisyellow;king’syellow;CHROME YELLO;cologneyellow;Lead chromate;LEIPZIG YELLOW;chromeyellowgf;chromeyellowlf
CBNumber
CB0347028
Molecular Formula
CrO4Pb
Formula Weight
323.19
MOL File
7758-97-6.mol
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Lead chromate Property

Melting point:
844°C
Density 
6,3 g/cm3
solubility 
soluble in alkaline solutions, dilute acid solutions
color 
Yellow
Water Solubility 
Insoluble. <0.1 g/100 mL at 19 ºC
Merck 
14,5405
Exposure limits
ACGIH: TWA 0.0002 mg/m3; TWA 0.05 mg/m3; STEL 0.0005 mg/m3
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 100 mg/m3; IDLH 15 mg/m3; TWA 0.0002 mg/m3; TWA 0.050 mg/m3
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)
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Safety

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)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H350May cause cancer

H360May damage fertility or the unborn child

H373May cause damage to organs through prolonged or repeated exposure

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P405Store locked up.

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N-Bromosuccinimide Price

Alfa Aesar
Product number
A10678
Product name
Lead(II) chromate, 98%
Packaging
250g
Price
$90
Updated
2023/06/20
Alfa Aesar
Product number
A10678
Product name
Lead(II) chromate, 98%
Packaging
1kg
Price
$268
Updated
2023/06/20
TRC
Product number
L320005
Product name
Lead(II) chromate
Packaging
5g
Price
$50
Updated
2021/12/16
GFS CHEMICALS
Product number
46912
Product name
LEADCHROMATE,REAGENT
Packaging
100g
Price
$57.49
Updated
2021/12/16
GFS CHEMICALS
Product number
46911
Product name
LEADCHROMATE,REAGENT
Packaging
500g
Price
$129.23
Updated
2021/12/16
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Lead chromate Chemical Properties,Usage,Production

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.

Lead chromate  is used in the production of commercial lead chromate pigments, such as Primrose Chrome Yellow, Light Chrome Yellow and Medium Chrome Yellow, containing 65-89% lead chromate (IARC 1990).
Lead chromate(VI) is also used in the preparation of green pigments such as chrome green or green cinnabar, in which it is mixed with Prussian blue (qq.v.). It is also listed by the Colour Index as a component of Pigment Green 15.

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.

History

Lead chromate(VI), PbCrO4, also known as plumbous chromate, was first synthesised around 1800, with its potential use as a pigment first reported by Berthollet and Vauquelin in 1804. According to Vauquelin (1809), it was prepared by adding lead acetate or lead nitrate to potassium chromate, and the shade of the precipitate could be varied (from yellow to orange or red) by adjusting the acidity/alkalinity of the products. Lead chromate( VI), which occurs naturally as the rare mineral crocoite (Rutley, 1988), is known as the pigment chrome yellow (qq.v.). It is listed by the Colour Index (1971) as CI Pigment Yellow 34 (CI 77600). The commercial manufacture of the pigment was largely influenced by the availability of suitable raw materials (usually in the form of the abundant mineral chromite, FeCr2O4). The earliest record of the use of chrome yellow is in a painting by Sir Thomas Lawrence dated prior to 1810 (Kühn, 1969). Sources of the pigment are reported by Harley (1982, citing Field, 1809) to be available by 1814-15, with Bollman (1769-1821) cited as the first commercial manufacturer in England, with production beginning around 1814-16.

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.

Description

Lead chromate is an orange or orange-yellowcrystalline solid or powder. Molecular weight = 323.19;546.38 (lead chromate oxide); Boiling point = (decom-poses);Freezing/Melting point = 844℃. HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 0, Reactivity 0. Insoluble in water.

Chemical Properties

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

Uses

It is used in chemical analysis of organic substances. 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.

Uses

Lead chromate, “chrome yellow” PbCrO4, yellow precipitate, by reaction of soluble lead salt solution and sodium dichromate or chromate solution.Used as a pigment; basic lead chromate, red solid, insoluble, formed by heating lead chromate and sodium hydroxide solution.

Definition

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

Health Hazard

Lead chromate is a suspected human lung carcinogen and can cause chronic lead poisoning.

Potential Exposure

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

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seekmedical attention immediately. If this chemical contactsthe skin, remove contaminated clothing and wash immedi-ately with soap and water. Seek medical attention immedi-ately. If this chemical has been inhaled, remove fromexposure, begin rescue breathing (using universal precau-tions, including resuscitationmask) if breathing hasstopped and CPR if heart action has stopped. Transferpromptly to a medical facility. When this chemical hasbeen swallowed, get medical attention. Give large quanti-ties of water and induce vomiting. Do not make an uncon-scious person vomit.Antidotes and special procedures for lead: Persons with sig-nificant lead poisoning aresometimestreated with CaEDTA while hospitalized. This“chelating” drug causes arush of lead from the body organs into the blood and kid-neys, and thus has its own hazards, and must be adminis-tered only by highly experienced medical personnel undercontrolled conditions and careful observation. Ca EDTA orsimilar drugs should never be used to prevent poisoningwhile exposure continues or without strict exposure control,as severe kidney damage can result.Note to physician: For severe poisoning BAL [BritishAnti-Lewisite, dimercaprol, dithiopropanol (C3HgOS2)] hasbeen used to treat toxic symptoms of certain heavy metalspoisoning. In the case of lead poisoning it may haveSOME value. Although BAL is reported to have a largemargin of safety, caution must be exercised, because toxiceffects may be caused by excessive dosage. Most can beprevented by premedication with 1-ephedrine sulfate(CAS: 134-72-5).

storage

Color Code- Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. I ead chromate must be stored to avoid contactwith oxidizers (such as perchlorates, peroxides, permanga-nates,chlorates, and nitrates) andchemically active metals(such as potassium, sodium, magnesium, zinc and ferricferrocyanide), since violent reactions occur. A regulated,marked area should be established where this chemical is handled,used, or stored in compliance with OSHAStandard 1910. 1045.

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)

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Lead chromate Suppliers

Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15848
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9984
Advantage
60
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
zhangsn@titansci.com
Country
China
ProdList
14113
Advantage
59
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18736
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14443
Advantage
57
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9664
Advantage
60
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9725
Advantage
55
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View Lastest Price from Lead chromate manufacturers

Shenyang Simchoice Chemical Co.,Ltd
Product
Lead chromate 7758-97-6
Price
US $17.50/KG
Min. Order
25KG
Purity
99%
Supply Ability
100tons per year military grade
Release date
2020-08-03
Hebei Guanlang Biotechnology Co., Ltd.
Product
Lead chromate 7758-97-6
Price
US $9.90/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2021-11-08
Hebei Zhanyao Biotechnology Co. Ltd
Product
Lead Chromate 7758-97-6
Price
US $10.00/KG
Min. Order
1Kg/Bag
Purity
99%
Supply Ability
20 Tons
Release date
2021-10-12

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