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7787-47-5

Basic Information
CAS No.: 7787-47-5
Name: Beryllium dichloride
Article Data: 115
Molecular Structure:
Molecular Structure of 7787-47-5 (Beryllium dichloride)
Formula: BeCl2
Molecular Weight: 79.9182
Synonyms: EINECS 232-116-4;beryllium,dichloride;Beryllium dichloride;BERYLLIUM CHLORIDE;BeCl2;
Density: g/cm3
Melting Point: 399oC(lit.)
Boiling Point: °Cat760mmHg
Flash Point: °C
Hazard Symbols: Very toxic.
Risk Codes: R49; R25; R26; R36/37/38; R43; R48/23; R51/53
Safety: Confirmed carcinogen with experimental tumorigenic data. Poison by ingestion and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits very toxic fumes of BeO and Cl. See also BERYLLIUM COMPOUNDS and CHLORIDES.
PSA: 0.00000
LogP: 1.37900
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Chemistry

Chemistry informtion about Beryllium Chloride (CAS NO.7787-47-5) is:
IUPAC Name: Beryllium Dichloride
Synonyms: Becl2 ; Beryllium Chloride (Becl2) ; Beryllium Chloride, Beta ; Berylliumchloride(Becl2) ; Na 1566 ; Beryllium Chloride ; Beryllium Dichloride ; Beryllium Chloride, Subl.
Product Categories: Inorganics ; BerylliumMicro/Nanoelectronics ; Electronic Chemicals ; Inorganic Salts ; Others ; Synthetic Reagents
MF: BeCl2
MW: 79.92
EINECS: 232-116-4 
Density: 1.899 g/mL at 25 °C(lit.)
Melting Point: 399 °C(lit.)
Boiling Point: 520°C 
Merck: 13,1170
Following is the molecular structure of Beryllium Chloride (CAS NO.7787-47-5) is:

Uses

Beryllium Chloride (CAS NO.7787-47-5) is an electron-deficient compound similar to aluminum chloride, is a Lewis acid. And it is used as a catalyst in organic reactions.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intraperitoneal 50mg/kg (50mg/kg)   Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.
mouse LD50 intraperitoneal 11987ug/kg (11.987mg/kg)   Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. Vol. 256, Pg. 1043, 1963.
mouse LD50 oral 92mg/kg (92mg/kg)   Hygiene and Sanitation Vol. 30(1-3), Pg. 169, 1965.
rat LD50 intraperitoneal 5320ug/kg (5.32mg/kg)   Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 9, Pg. 264, 1950.
rat LD50 oral 86mg/kg (86mg/kg)   Hygiene and Sanitation Vol. 30(1-3), Pg. 169, 1965.

Consensus Reports

NTP 10th Report on Carcinogens. IARC Cancer Review: Group 1 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 1 (1972),p. 17.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 (1980),p. 143.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory. Beryllium and its compounds are on the Community Right-To-Know List.

Safety Profile

Confirmed carcinogen with experimental tumorigenic data. Poison by ingestion and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits very toxic fumes of BeO and Cl. See also BERYLLIUM COMPOUNDS and CHLORIDES
Hazard Codes:
VeryT+
DangerousN
Risk Statements:
R49:May cause cancer by inhalation. 
R25 :Toxic if swallowed. 
R26:Very toxic by inhalation. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R43:May cause sensitization by skin contact. 
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed. 
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
Safety Statements:
S53:Avoid exposure - obtain special instructions before use. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 1566 6.1/PG 2
WGK Germany: 3
RTECS: DS2625000
F: 
F 3: Hygroscopic.
F 10: Keep under argon.
HazardClass: 6.1(b)
PackingGroup: III

Standards and Recommendations

OSHA PEL: TWA 0.002 mg(Be)/m3; STEL 0.005 mg(Be)/m3/30M; CL 0.025 mg(Be)/m3
ACGIH TLV: TWA 0.002 mg(Be)/m3; Confirmed Human Carcinogen; (Proposed: TWA 0.0002 mg(Be)/m3 (sensitizer); Confirmed Human Carcinogen)
DFG MAK: Animal Carcinogen, Suspected Human Carcinogen
NIOSH REL: (Beryllium) CL not to exceed 0.0005 mg(Be)/m3

Analytical Methods

BeCl2 can be prepared by treating Be metal with hydrogen chloride:
Be + 2 HCl → BeCl2 + H2

Specification

Beryllium Chloride (CAS NO.7787-47-5) is a white to green solid with a sharp odor. Reacts with water with evolution of heat. Forms beryllium oxide and hydrochloric acid solution. Corrodes most metals in presence of moisture. Flammable and explosive hydrogen gas may collect in enclosed spaces. It generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. Beryllium Chloride reacts with vigor with sulfur nitrides. Some explode upon intimate mixing, i.e. tetrasulfur tetranitride.
Health Hazard Inhalation causes pneumonitis, nasopharyngitis, tracheobronchitis, dyspnea, chronic cough. Ingestion causes irritation of mouth and stomach. Contact with dust causes conjunctival inflammation of eyes and irritation of skin. Any dramatic, unexplained weight loss should be considered as a possible first indication of beryllium disease.Special Hazards of Combustion Products: Toxic and irritating beryllium oxide fumes and hydrogen chloride may form in fires.  It hydrolyses upon contact with water to give the aquo complex, [Be(H2O)4]Cl2. Beryllium chloride is stable in dry air, but absorbs moisture forming its tetrahydrate, BeCl2•4H2O. It readily dissolves in water undergoing hydrolysis and evolving hydrochloric acid:
BeCl2 + 2H2O → Be(OH)2 + 2HCl
Cold aqueous solution of beryllium chloride reacts with hydrogen sulfide forming beryllium sulfide, which decomposes on heating.