Lithium chromate Chemical Properties

Melting point:

844℃

Density 

1.355

form 

crystal

color 

yellow

Water Solubility 

94.6 g/L at 25 ºC

CAS DataBase Reference

14307-35-8(CAS DataBase Reference)

EPA Substance Registry System

Lithium chromate (14307-35-8)

Safety Information

Hazard Codes 

T,N

Risk Statements 

8-43-49-50/53

Safety Statements 

17-36/37/39-53-60-61-45

RIDADR 

1479

HazardClass 

6.1(b)

PackingGroup 

III

Hazardous Substances Data

14307-35-8(Hazardous Substances Data)

Lithium chromate Usage And Synthesis

Chemical Properties

Lithium chromate is a yellow or orange-yellow crystalline powder. It dissolves in strong acids and alkalis but is insoluble in water and oil. It is made from lithium hydroxide and chromic acid.

Uses

Lithium Chromate is used in preparation method method of permeable crystalline cement-based waterproof coating by using maifanstone composite high water-absorbing resin and its application in building.

Preparation

According to the following equations, Li2CrO4 is formed on boiling a solution of (NH4)2Cr2O7 with LiOH.   

General Description

Lithium chromate appears as a yellow crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used as a corrosion inhibitor and in the manufacture of other chemicals.

Air & Water Reactions

Deliquescent. Water soluble

Reactivity Profile

Lithium chromate is an oxidizing agent. Can oxidize combustibles [USCG, 1999]. Combining the chromate with zirconium can be explosive given the right proportions of reactants, [Z. Anorg., 1930, 191, 113].

Health Hazard

INHALATION: Corrosive to skin and mucous membranes causing dermatitis and slow healing ulcers. EYES: Conjunctivitis and lacrimation. INGESTION: Violent gastroenteritis, peripheral vascular collapse, vertigo, muscle cramps, coma, hemorrhagic diathesis, fever, liver damage and renal failure.

Potential Exposure

Used as a corrosion inhibitor, heat transfer agent; and oxidizing agent in leather and metal finishing. Also used in photography, wood preservatives; batteries, safety matches, and cement

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. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

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. A regulated, marked area should be establishedwhere this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045. Store in tightlyclosed containers in a cool, well-ventilated area away from acids, hydrazine, chromic acid, combustible materials, sulfur, aluminum, plastics, and reducing agents.

Shipping

UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Incompatibilities

Aqueous solution is caustic. A strong oxidizer; strong reaction with reducing agents, combustibles, organic material, hydrazine, chromic acid; sulfur, acids. Attacks plastics and aluminum

References

[1] YINGCHUN LYU. Atomic insight into electrochemical inactivity of lithium chromate (LiCrO2): Irreversible migration of chromium into lithium layers in surface regions[J]. Journal of Power Sources, 2015, 273 1: 1218-1225. DOI:10.1016/J.JPOWSOUR.2014.09.082.
[2] N.K. SHUKLA. Thermochemistry of lithium chromate Li2CrO4(cr) and lithium molybdate Li2MoO4(cr)[J]. Journal of Chemical Thermodynamics, 1992, 24 9: Pages 897-903. DOI:10.1016/S0021-9614(05)80001-1.

Lithium chromate (14307-35-8)Related Product Information

• CHROMIC MIXTURE
• Pigment Yellow 34
• Potassium chromate
• Barium chromate
• Chromate, Ion chromatography standard solution, Specpure, CrO4ˉ2 1000μg/ml
• chromium dioxide
• LITHIUM CHROMATE DIHYDRATE
• Chromic acid
• Lithium chromate dihydrate
• LITHIUM DICHROMATE
• lithium dichromate
• Chromium(III) oxide
• Chromate(2-), [1-[(5-chloro-2-hydroxyphenyl)azo]-2-naphthalenolato(2-)][3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-1-naphthalenesulfonato(3-)]-, lithium sodium
• Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)][3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato(3-)]-, lithium sodium
• Chromate(2-), [3-[[[5-[(2-chloro-4-nitrophenyl)azo]-2-hydroxyphenyl]methylene]amino]-4-hydroxybenzenesulfonamidato(2-)][2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-sulfobenzoato(3-)]-, lithium sodium
• lithium bis[4-[(2-chloro-4-nitrophenyl)azo]-2-[[(2-hydroxy-5-nitrophenyl)imino]methyl]phenolato(2-)]chromate(1-)
• Chromate(3-), bis[2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-5-sulfobenzoato(3-)]-, lithium sodium
• Lithium chromate