Cesium chromate (Cs2CrO4)

Caesiumchromate · CESIUM CHROMATE · dicesium chromate · Cesium chromate(VI) · Chromicacid,dicesiumsalt · CHROMIC ACID CESIUM SALT · Chromicacid(H2CrO4)dicesiumsalt · chromicacid(h2cro4),dicesiumsalt

https://huagongshe.com/en/chemical/61613

Cesium chromate (Cs2CrO4) molecular structure

Identifiers & Physical Properties

CAS No.	13454-78-9
Molecular formula	CrCs2O4
Average molar mass	381.805 g/mol
Monoisotopic mass	381.73106978 g/mol
SMILES	[Cs+].[Cs+].[O]=[Cr](=[O])([O-])[O-]
InChIKey	BROHICCPQMHYFY-UHFFFAOYSA-N
PubChem CID	61613
EC No.	236-640-4
DTXSID	DTXSID20894903

Chemical & Physical Properties

Topological polar surface area	80.3
Hydrogen bond donors	0
Hydrogen bond acceptors	4
Rotatable bonds	0
Heavy atoms	7
Formal charge	0
Complexity	62.2
Chemical classes	Metals -> Chromium Compounds, Inorganic
Physical Description	Yellow odorless powderSoluble in water[MSDSonline]
Physical state	Powder
Solubility	Soluble in water.
Sensitivity	Hygroscopic
Exposure limits	OSHA: Ceiling 0.1 mg/m3NIOSH: IDLH 15 mg/m3TWA 0.0002 mg/m3
InChI	1S/Cr.2Cs.4O/q2+12-1
InChIKey	BROHICCPQMHYFY-UHFFFAOYSA-N
SMILES	[Cs+].[Cs+].[O-][Cr]([O-])(=O)=O
CAS DataBase Reference	13454-78-9(CAS DataBase Reference)
EPA Substance Registry System	Chromic acid (H2CrO4), dicesium salt (13454-78-9)
UNSPSC Code	12352302
NACRES	NA.23
GHS pictogram	GHS03,GHS07,GHS08,GHS09
Signal word	Danger
GHS hazard statements	H350-H400-H272-H317-H350i-H410
GHS precautionary statements	P201-P220-P273-P280-P308+P313-P501-P210-P333+P313-P261-P405-P501a
Hazard symbols	O,T,N
Risk statements (R)	45-46-8-36/37/38-50/53-43-49
Safety statements (S)	53-17-26-27-36/37/39-45-61-60
UN transport number	UN 1479 5.1/PG 2
Water hazard class (WGK)	3
TSCA inventory status	TSCA listed
Hazard class	5.1Aquatic Acute 1Aquatic Chronic 1Carc. 1BOx. Sol. 2Skin Sens. 1
Packing group	III
Storage class	5.1B - Oxidizing hazardous materials

Safety & Regulations

GHS classification	DangerH272 (94.4%): May intensify fireoxidizer [Danger Oxidizing liquidsOxidizing solids]P203, P210, P220, P261, P264, P264+P265, P271, P272, P273, P280, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P370+P378, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 72 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H272 (88.4%): May intensify fire
Hazards summary	CrVI compounds are irritants, sensitizers, and may be corrosive to the skin. CrVI compounds are respiratory tract irritants and may cause pulmonary sensitization. CrVI may cause acute tubular necrosis and liver injury. [ATSDR Case Studies] May cause fire in contact with combustible materialA corrosive substance that can cause injury to the skin, eyes, and respiratory tractMay cause skin sensitization[MSDSonline] See Chromium and linked occupational diseases.
Hazard Classes and Categories	Ox. Sol. 2 (94.4%)Ox. Sol. 2 (88.4%)
Exposure control and personal protection	Biological Exposure Indices (BEI) [ACGIH] - For chromium (VI), water-soluble fume: Total Cr in urine = 10 ug/L (increase during shift) or 25 ug/L (end of shift at end of workweek)
Minimum Risk Level	Intermediate Oral: 0.005 mg/kg/day (L134) Chronic Oral: 0.001 mg/kg/day (L134)
Threshold Limit Values (TLV)	0.0002 [mg/m3], as Cr(VI), inhalable particulate matter0.0005 [mg/m3], as Cr(VI), inhalable particulate matter
Permissible Exposure Limit (PEL)	0.005 [mg/m3], as Cr(VI)
Treatment	There is no know antidote for chromium poisoning. Exposure is usually handled with symptomatic treatment. (L16)
Health effects	Hexavalent chromium is a known carcinogen. Chronic inhalation especially has been linked to lung cancer. Hexavalent chromium has also been know to cause reproductive and developmental defects. (A12)

Applications & Uses

Uses

Cesium chromate is used to produce cesium vapor by reaction with silicon, boron, or titanium, which is used in the final stages of creating vacuum tubes. It is used in the production of photo-tubes.