Lithium chromate
- Iupac Name:dilithium;dioxido(dioxo)chromium
- CAS No.: 14307-35-8
- Molecular Weight:129.8757
- Modify Date.: 2022-11-03 05:12
- Introduction: 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. Lithium chromate is used as a corrosion inhibitor and in the manufacture of other chemicals.
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1. Names and Identifiers
- 1.1 Name
- Lithium chromate
- 1.2 Synonyms
chroman dilitny Chromic acid (H2CrO4), dilithium salt Chromic acid (H2CrO4), lithium salt (1:2) chromicacid(h2cro4),dilithiumsalt Chromium lithium oxide (CrLi2O4) Dilithium chromate (Li2CrO4) Lithium chromate (Li2CrO4) Lithium chromate(VI) lithium chromium oxide Lithium chromium oxide (Li2CrO4) Lithiumchromat Lithiumchromateminyellowxtl
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- 1.3 CAS No.
- 14307-35-8
- 1.4 CID
- 26627
- 1.5 EINECS(EC#)
- 238-244-7
- 1.6 Molecular Formula
- CrLi2O4 (isomer)
- 1.7 Inchi
- InChI=1S/Cr.2Li.4O/q;2*+1;;;2*-1
- 1.8 InChIkey
- JQVALDCWTQRVQE-UHFFFAOYSA-N
- 1.9 Canonical Smiles
- [Li+].[Li+].[O-][Cr](=O)(=O)[O-]
- 1.10 Isomers Smiles
- [Li+].[Li+].[O-][Cr](=O)(=O)[O-]
2. Properties
- 2.1 Density
- 1.355
- 2.1 Melting point
- Decomposes @ 75 deg C
- 2.1 PSA
- 80.26000
- 2.1 logP
- -0.47520
- 2.1 Solubility
- 94.6 g/L at 25 ºC
- 2.2 Appearance
- yellow crystalline solid
- 2.3 Storage
- Ambient temperatures.
- 2.4 Autoignition Temperature
- Not flammable (USCG, 1999)
- 2.5 Chemical Properties
- Lithium chromate is a yellow crystalline powder.
- 2.6 Color/Form
- yellow
- 2.7 Odor
- Odorless
- 2.8 PH
- ... hexavalent chromium compounds are acidic
- 2.9 Water Solubility
- 94.6 g/L at 25 oC
3. Use and Manufacturing
- 3.1 General Description
- 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. Lithium chromate is used as a corrosion inhibitor and in the manufacture of other chemicals.
- 3.2 Potential Exposure
- Used as a corrosion inhibitor, heattransfer agent; and oxidizing agent in leather and metal finishing. Also used in photography, wood preservatives; batteries, safety matches, and cement
- 3.3 Shipping
- UN3288 Toxic solids, inorganic, n.o.s., HazardClass: 6.1; Labels: 6.1-Poisonous materials, TechnicalName Required.
4. Safety and Handling
- 4.1 Hazard Codes
- O;T+
- 4.1 Risk Statements
- 45-46-8-36/37/38
- 4.1 Safety Statements
- 53-17-36/37/39-45
- 4.1 Packing Group
- III
- 4.1 Other Preventative Measures
- SRP: Local exhaust ventilation should be applied wherever there is an incidence of point source emissions or dispersion of regulated contaminants in the work area. Ventilation control of the contaminant as close to its point of generation is both the most economical and safest method to minimize personnel exposure to airborne contaminants.
If material not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary.
Personnel protection: Keep upwind. ... Avoid breathing vapors or dusts. Wash away any material which may have contacted the body with copious amounts of water or soap and water.
- 4.2 Hazard Class
- 6.1(b)
- 4.2 Cleanup Methods
- Environmental considerations: Land Spill: Dig a pit, pond, lagoon or holding area to contain liquid or solid material. /SRP: If time permits, pits, ponds, lagoons, soak holes, or holding areas should be sealed with an impermeable flexible membrane liner./ Cover solids with a plastic sheet to prevent dissolving in rain or fire-fighting water.
Environmental considerations: Water Spill: Neutralize with agricultural lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3). Add soda ash (NaCo3). Adjust pH to neutral (pH 7).
- 4.3 DisposalMethods
- SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
- 4.4 RIDADR
- UN 1479 5.1/PG 3
- 4.4 Fire Fighting Procedures
- If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
- 4.5 FirePotential
- Non-combustible
- 4.6 Formulations/Preparations
- 35% solution grade
- 4.7 Incompatibilities
- Aqueous solution is caustic. A strongoxidizer; strong reaction with reducing agents, combustibles, organic material, hydrazine, chromic acid; sulfur,acids. Attacks plastics and aluminum Lithium chromate Preparation Products And Raw materials Raw materials
5. MSDS
2.Hazard identification
2.1 Classification of the substance or mixture
Skin sensitization, Category 1
Carcinogenicity, Category 1B
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
2.2 GHS label elements, including precautionary statements
Pictogram(s) | |
Signal word | Danger |
Hazard statement(s) | H317 May cause an allergic skin reaction H350 May cause cancer H410 Very toxic to aquatic life with long lasting effects |
Precautionary statement(s) | |
Prevention | P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P273 Avoid release to the environment. |
Response | P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P313 If skin irritation or rash occurs: Get medical advice/attention. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P308+P313 IF exposed or concerned: Get medical advice/ attention. P391 Collect spillage. |
Storage | P405 Store locked up. |
Disposal | P501 Dispose of contents/container to ... |
2.3 Other hazards which do not result in classification
none
6. Other Information
- 6.0 Chemical Properties
- Lithium chromate is a yellow crystalline powder.
- 6.1 General Description
- 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. Lithium chromate is used as a corrosion inhibitor and in the manufacture of other chemicals.
- 6.2 Air & Water Reactions
- Deliquescent. Water soluble
- 6.3 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].
- 6.4 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.
- 6.5 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
- 6.6 First aid
- If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
- 6.7 Shipping
- UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
- 6.8 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
7. Computational chemical data
- Molecular Weight: 129.8757g/mol
- Molecular Formula: CrLi2O4
- Compound Is Canonicalized: True
- XLogP3-AA: null
- Exact Mass: 129.952170
- Monoisotopic Mass: 129.952170
- Complexity: 62.2
- Rotatable Bond Count: 0
- Hydrogen Bond Donor Count: 0
- Hydrogen Bond Acceptor Count: 4
- Topological Polar Surface Area: 80.3
- Heavy Atom Count: 7
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count: 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Isotope Atom Count: 0
- Covalently-Bonded Unit Count: 3
- CACTVS Substructure Key Fingerprint: AAADcQwAOAAAAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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9. Realated Product Infomation