Henan Tianfu Chemical Co., Ltd.
China
Product Name: boron atom
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

7440-42-8

7440-42-8 structure

Name: Boron
Chemical Name: boron atom
CAS Number: 7440-42-8
Molecular Formula: B
Molecular Weight: 10.81
Catalog: Inorganic chemical industry Simple substance
Create Date: 2018-02-27 08:00:00
Modify Date: 2026-06-29 18:05:48

Name	boron atom
Synonyms	BORON POWDER, CRYSTALLINE: , -60 MESH BORNYL ISOPENTANOATE boron atomic absorption standd solution,1 mg/ml b in water BORON PIECES <6CM Boron, pieces, crystalline, <1cm B AM II BORON AMORPHOUS ADE II - A PRODUCT OF H.C. STCK endo-Bornylisovalerat 2-Bornyl isovalerate Boron powder, crystalline, -40 mesh, Puratronic B KR K2 BORON CRYSTALLINE ADE K2 - A PRODUCT OF H.C. STCK B KR K1 BORON CRYSTALLINE ADE K1 - A PRODUCT OF H.C. STCK Boron, plasma standd solution, Speure(R), B 1000μg/ml B KR KT1 BORON CRYSTALLINE ADE KT1 - A PRODUCT OF H.C. STCK Boronpowder,crystalline,-325mesh Boron solution borohydride radical BORON, PRACTICAL ADE, AMORPHOOWDER Boron, amorphous powder -325 mesh Boron amorphous, micron Boron Rod/Φ10mm Boron powder, amorphous, -325 mesh Mg nominal Bor B KR P1 BORON CRYSTALLINE ADE P1 - A PRODUCT OF H.C. STCK Boron powder, amorphous (min. ) Basaan C6 Boronpieces,crystalline,20mm(0.8in)&down Bornyl-isovalerat BORON AMORPHOUS POWDER BORON CRYSTALLINE Boronpowder,amorphous BORON CRYSTALLINE -60 MESH DNA pol &silon B AM I BORON AMORPHOUS ADE I - A PRODUCT OF H.C. STCK BORON ISTANDD TRACEABLE TO SRM FROM B AM III BORON AMORPHOUS ADE III - A PRODUCT OF H.C. STCK BORON CRYSTALLINE -325 MESH Boronpowder,crystalline Boronpowder,amorphous,-325mesh 3-(1-Methylethyl)-2,1,3-benzothiadiazin-4(3H)-one-13C6 2,2-Dioxide endo-bornyl isovalerate BORON, CRYSTALLINE, PIECES BORONFIBRES Bornyval Boron Rod/Φ5mm 3,4-Dihydro-3-isopropyl-1H-2,1,3-benzothiadiazin-4-one-13C6 2,2-Dioxide BORON POWDER, CRYSTALLINE, ELEC BORON CRYSTALLINE ADE KT1 Boron, Powder, Amorphous -325 Mesh Basaan-13C6 Boron powder, crystalline EINECS 231-151-2 BORNEOL ISOVALERATE 3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-13C6 2,2-Dioxide Amorphous element boron Boron powder, crystalline, -40 mesh, Puratronic(R) BORON POWDER SUBMICRON AMORPHOUS & Silybin(Mixture A& Hysterol BORON CRYSTALLINE ADE P1 BORON POWDER MFCD00134034 Boron powder, amorphous Standd solution for the determination of boron

Density	2.34 g/mL at 25ºC(lit.)
Boiling Point	3650ºC
Melting Point	2180ºC
Molecular Formula	B
Molecular Weight	10.81
Stability	Stable. Substances to be avoided include strong oxidizing agents and strong acids. May decompose on exposure to air - store under nitrogen. Highly flammable.
Water Solubility	H2O: soluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ED7350000

CHEMICAL NAME :: Boron

CAS REGISTRY NUMBER :: 7440-42-8

LAST UPDATED :: 199710

DATA ITEMS CITED :: 21

MOLECULAR FORMULA :: B

MOLECULAR WEIGHT :: 10.81

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 650 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 35(2),42,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 560 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 35(2),42,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 310 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 310 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 310 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 300 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(9),49,1975 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 32 gm/kg/30D-I

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes Cardiac - other changes Liver - liver function tests impaired

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 35(2),42,1991

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10560 ug/m3/4H/17W-I

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 35(2),42,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2821 mg/kg/13W-I

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other transferases

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 35(11),11,1970 *** REVIEWS *** TOXICOLOGY REVIEW KOTTAM Kogai to Taisaku. Journal of Environmental Pollution Control. (Kogai Taisaku Gijutsu Dokokai, Shuwa-Akasaka Bldg., 9-1-244, Akasaka, Minato-ku, Tokyo 107, Japan) V.1- 1965- Volume(issue)/page/year: 11,1300,1975 TOXICOLOGY REVIEW CLCHAU Clinical Chemistry (Winston-Salem, NC). (American Assoc. for Clinical Chemistry, 1725 K St., NW, Washington, DC 20006) V.1- 1955- Volume(issue)/page/year: 19,361,1973 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80251 No. of Facilities: 995 (estimated) No. of Industries: 35 No. of Occupations: 31 No. of Employees: 6536 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4244 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 65 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80251 No. of Facilities: 2277 (estimated) No. of Industries: 48 No. of Occupations: 74 No. of Employees: 41637 (estimated) No. of Female Employees: 4576 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;F: Flammable;
Risk Phrases	R11
Safety Phrases	S24/25
RIDADR	UN 3178 4
RTECS	ED7350000
Packaging Group	III
Hazard Class	4.1
HS Code	2804500010

16940-66-2

7440-42-8

Literature: Journal of the Chemical Society, Chemical Communications, , # 12 p. 915 - 916

Precursor 1
16940-66-2
DownStream 0

HS Code	2804500010

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