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Lead(II) iodide

Basic information Description References Safety Related Supplier

Lead(II) iodide Basic information

Product Name:
Lead(II) iodide
CAS:
10101-63-0
MF:
I2Pb
MW:
461.01
EINECS:
233-256-9
Mol File:
10101-63-0.mol
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Lead(II) iodide Chemical Properties

Melting point:
402 °C(lit.)
Boiling point:
954 °C(lit.)
Density 
6.16 g/mL at 25 °C(lit.)
Flash point:
954°C
solubility 
Soluble in concentrated solutions of alkali iodides and sodium thiosulfate. Insoluble in alcohol and cold hydrochloric acid.
form 
beads
color 
Yellow to orange
Specific Gravity
6.16
Water Solubility 
Partially soluble in water. Freely soluble in sodium thiosulfate solution. Soluble in concentrated solutions of alkali iodides. Insoluble in alcohol and cold HCl.Soluble in concentrated solutions of alkali iodides and sodium thiosulfate. Insoluble in alcohol and cold hydrochloric acid.
λmax
539nm(neat)(lit.)
Sensitive 
Light Sensitive
Hydrolytic Sensitivity
0: forms stable aqueous solutions
Merck 
14,5411
Solubility Product Constant (Ksp)
pKsp: 8.01
Stability:
Stable. May discolour upon exposure to light.
InChIKey
RQQRAHKHDFPBMC-UHFFFAOYSA-L
CAS DataBase Reference
10101-63-0(CAS DataBase Reference)
NIST Chemistry Reference
Lead diiodide(10101-63-0)
EPA Substance Registry System
Lead(II) iodide (10101-63-0)
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Safety Information

Hazard Codes 
T,N
Risk Statements 
61-20/22-33-50/53-62
Safety Statements 
53-45-60-61
RIDADR 
UN 2291 6.1/PG 3
WGK Germany 
3
8
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
28276000
Hazardous Substances Data
10101-63-0(Hazardous Substances Data)

MSDS

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Lead(II) iodide Usage And Synthesis

Description

Lead (II) iodide (chemical formula: PbI) is a kind of inorganic salt. It appears as a bright yellow crystalline solid. It has some special applications such as the manufacture of solar cells, X-rays, and gamma-ray detectors. In addition, it can also be used as a paint pigment for being used in art for bronzing and in gold-like mosaic tiles. It can be commonly synthesized through a double displacement reaction between potassium iodide KI and lead (II) nitrate Pb(NO3)2 in water solution. Lead (II) acetate and sodium iodide can also be used as the substitute of lead nitrate and potassium iodide, respectively. Alternatively, it can be manufactured through the reaction between iodine vapor and the molten lead. It is also used in printing and photography. However, it is hazard to the environment, and should be taken care of to limit spread to the environment.

References

https://en.wikipedia.org/wiki/Lead(II)_iodide
https://pubchem.ncbi.nlm.nih.gov/compound/Lead_II__iodide#section=Top

Chemical Properties

Golden yellow powder

Chemical Properties

Lead iodide is a heavy, bright-yellow, odorless powder.

Physical properties

Yellow hexagonal crystals; density 6.16 g/cm3; melts at 402°C; vaporizes at 954°C; decomposes at 180°C when exposed to green light; slightly soluble in water (0.44 g/L at 0°C and 0.63 g/L at 20°C); K下sp 8.49x10-9 at 25°C; partially soluble in boiling water (4.1 g/L at 100°C); insoluble in ethanol; soluble in alkalis and alkali metal iodide solutions.

Uses

Used in bronzing, printing, photography, and mosaic gold

Uses

Bronzing, gold pencils, mosaic gold, printing, photography.

Preparation

Lead diiodide is prepared by mixing aqueous solutions of lead nitrate or lead acetate with an aqueous solution of potassium or sodium iodide or hydriodic acid, followed by crystallization. The product is purified by recrystallization.
Pb2+(aq) + 2Iˉ (aq) → PbI2(s).

General Description

A yellow crystalline solid. Insoluble in water and denser than water. Primary hazard is threat to the environment. Immediate steps should be taken to limit spread to the environment. Used in printing and photography, to seed clouds and other uses.

Air & Water Reactions

Slightly water soluble.

Reactivity Profile

Lead(II) iodide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitive

Hazard

Lead diiodide is toxic if ingested. The symptoms are those of lead poisoning.

Health Hazard

Early symptoms of lead intoxication via inhalation or ingestion are most commonly gastrointestinal disorders, colic, constipation, etc.; weakness, which may go on to paralysis, chiefly of the extensor muscles of the wrists and less often the ankles, is noticeable in the most serious cases. Ingestion of a large amount causes local irritation of the alimentary tract. Pain, leg cramps, muscle weakness, paresthesias, depression, coma, and death may follow in 1 or 2 days. Contact with eyes causes irritation.

Potential Exposure

Lead iodide is used in bronzing, gold pencils; mosaic gold; printing, and photography

Shipping

UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required

Purification Methods

It crystallises from a large volume of water. The solubility in H2O is 1.1% at ~10o, and 3.3% at ~ 100o.

Incompatibilities

Lead iodide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Light sensitive Contact with oxidizers or active metals may cause violent reaction

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Lead(II) iodideSupplierMore

Sigma-Aldrich Gold
Tel:
021-61415566- ;
Email:
orderCN@merckgroup.com;orderCN@merckgroup.com
Xi’an Polymer Light Technology Corp. Gold
Tel:
29-8110-1199
Email:
sales@p-oled.cn
3A Chemicals Gold
Tel:
400-668-9898
Email:
service@3achem.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
INTATRADE GmbH
Tel:
+49 3493/605464
Email:
sales@intatrade.de
Basic information Description References Safety Related Supplier