Welcome to LookChem.com Sign In|Join Free

Products

  • or
Home > Pharmaceutical > 7440 > 

7440-39-3

Refine

Refine

Country

Business Type

Certificate

Display

Basic Information
CAS No.: 7440-39-3
Name: Barium
Article Data: 214
Molecular Structure:
Molecular Structure of 7440-39-3 (Barium)
Formula: Ba
Molecular Weight: 137.33
Synonyms: Bariumelement;
EINECS: 231-149-1
Density: 3.6 g/mL at 25 °C(lit.)
Melting Point: 725 °C(lit.)
Boiling Point: 1640 °C(lit.)
Solubility: Insoluble(decomposes)
Appearance: rod
Hazard Symbols: Flammable (pyrophoric) at room temperature in powder form; store under inert gas, petroleum, or other oxygen-free liquid. When heated to approximately 200C in hydrogen, barium reacts violently, forming BaH2. TLV: for all soluble barium compounds, 0.5 mg/m3 (as barium).
Risk Codes: 25-26-34
Safety: Water and stomach acids solubilize barium salts and can cause poisoning. Symptoms are vomiting, colic, diarrhea, slow irregular pulse, transient hypertension, and convulsive tremors and muscular paralysis. Death may occur in a few hours to a few days. Half-life of barium in bone has been estimated at 50 days. Dust is dangerous and explosive when exposed to heat, flame, or chemical reaction. Violent or explosive reaction with water, CCl4, fluorotrichloromethane, trichloroethylene, and C2Cl4. Incompatible with acids, C2Cl3F3, C2H2FCl3, C2HCl3 and water, 1,1,2-trichlorotrifluoroethane, and fluorotrichloroethane. The powder may ignite or explode in air or other oxidizing gases. See also BARIUM COMPOUNDS (soluble).

Analytical Methods:

   

For occupational chemical analysis use NIOSH: Barium, Soluble Compounds, 7056.

Transport Information: UN 3264 8
PSA: 0.00000
LogP: 0.22500
Synthetic route

barium hexammine

7440-39-3

barium

Conditions
ConditionsYield
byproducts: NH3; decompn. in vac.;100%

barium azide

7440-39-3

barium

Conditions
ConditionsYield
from solid recrystd. BaN6; hydrolysis; pure metal;100%
In neat (no solvent) thermic decomposition of Ba(N3)2;;
byproducts: nitrogen; at 160-120 °C;
7429-90-5

aluminium

barium(II) oxide

7440-39-3

barium

Conditions
ConditionsYield
5h in vac. at 1300-1340 °C; Metal distilles off. Repeated distn. gives 99.5% purity;98.5%
4h in vac. at 1010-1030 °C; opening of apparatus under CO2, crushing of product under desiccated toluene to avoid self inflammation; Metal sublimes off. Repeated distn. gives 99.48% purity;
sublimation in vac.; 99.9% Ba;
sublimation in vac.; 99.9% Ba;

beryllium

barium(II) oxide

7440-39-3

barium

Conditions
ConditionsYield
1.5h at 1250°C; Ba distilles off;63%
1.5h at 1250°C; Ba distilles off;63%
1.5h in vac. at 1220-1230 °C;

barium carbonate

A

7440-39-3

barium

B

7440-44-0

pyrographite

C

barium(II) oxide

Conditions
ConditionsYield
In neat (no solvent) byproducts: CO, CO2; thermal decompn. (700-1200 K, 30-40 K steps, 5 min at each temp.-step); Auger spectroscopy, pressure monitoring;

barium carbonate

A

barium acetylide

B

7440-39-3

barium

Conditions
ConditionsYield
With pyrographite In neat (no solvent) heating of BaCO3 and charcoal forms BaO; BaO is reduced above 1400°C forming Ba or BaC2; examination of the weight-loss depending on heating rate;;
With charcoal

barium carbonate

7440-39-3

barium

Conditions
ConditionsYield
With Fe/Si alloy In neat (no solvent) reduction of BaCO3 with an Fe-Si-alloy with 25% Fe;;
With Ta or Nb In neat (no solvent) reduction of BaCO3 with Ta or Nb at 1600°C;;
With Fe/Si alloy In neat (no solvent) reduction of BaCO3 with an Fe-Si-alloy with 25% Fe;;
7439-95-4

magnesium

barium carbonate

A

7440-39-3

barium

B

barium(II) oxide

barium carbonate

7429-90-5

aluminium

A

1333-84-2, 1344-28-1

aluminum oxide

B

7440-39-3

barium

Conditions
ConditionsYield
In neat (no solvent) byproducts: C; heating equal amounts of carbonate and Al powder to red heat;; powdery product mixture obtained;;
In neat (no solvent) byproducts: C; heating equal amounts of carbonate and Al powder to red heat;; powdery product mixture obtained;;
7440-44-0

pyrographite

barium carbonate

A

201230-82-2

carbon monoxide

B

7440-39-3

barium

Conditions
ConditionsYield
With barium(II) chloride In neat (no solvent) Electrolysis; satn. of molten BaCl2-LiCl- or BaCl2-NaCl-mixtures with BaCO3, electrolysis for 1.5h (3-4 V, 10 A, carbon electrodes) forms Ba and CO;;
With BaCl2; LiCl or NaCl
  • Display:default sort

    New supplier

  • Barium

  • Casno:

    7440-39-3

    Barium

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 3.0-3.0

    As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

    Dayang Chem (Hangzhou) Co.,Ltd. dedicated to the development, production and marketing of chemicals which is specialized in Organic compounds; Active Pharmaceutical Ingredi

  •  Dayang Chem (Hangzhou) Co.,Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-88938639

    Address:9/F, Unit 2 Changdi Torch Building, 259# WenSan Road, Xihu District, Hangzhou City 310012, P.R.China

       Inquiry Now

  • Factory Supply Barium

  • Casno:

    7440-39-3

    Factory Supply Barium

    Min.Order: 1

    FOB Price:  USD $ 0.0-0.0

    The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

    Ality Chemical, established in 2007, is a comprehensive Chemical Production&Supply Group with Patent Technology as its core. Ality Chemical operates sales branches in Shanghai, Xia

  •  Ality Chemical Corporation

     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:0513-87616220

    Address:Fine chemical industry park, Nantong,Jiangsu

       Inquiry Now

  • Barium

  • Casno:

    7440-39-3

    Barium

    Min.Order: 5 Kiloliter

    FOB Price:  USD $ 1.2-5.0

    Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

    Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Fine chemicals, Active pharmaceutical ingredients(APIs), Veterinary, In

  •  Chemwill Asia Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Manufacturers

    Tel:021-51086038

    Address:High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China

       Inquiry Now

  • Barium

  • Casno:

    7440-39-3

    Barium

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

    J&H Chemical is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other

  •  Hangzhou J&H Chemical Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-87396432

    Address:No.200 Zhenhua Rd.Xihu Industrial Park, Hangzhou 310030, China

       Inquiry Now

  • High Purity barium

  • Casno:

    7440-39-3

    High Purity barium

    Min.Order: 10 Gram

    FOB Price:  USD $ 0.0-0.0

    Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

    Hangyu Biotech is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and O

  •  Zibo Hangyu Biotechnology Development Co., Ltd

    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:86-15965530500

    Address:Room1701, Tianxing Building,Licheng district, jinan, Shandong, China

       Inquiry Now

  • 7440-39-3 Barium

  • Casno:

    7440-39-3

    7440-39-3 Barium

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0

    Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung, LG, Merck, Thermo Fisher Scientific and so o

    Our company engages in Electronic chemicals such as OLED,Photoresist chemical,Electrolyte additive and Intermediate Pharmaceutical production; development of noble metal catalysts,

  •  Henan Tianfu Chemical Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:86-371-55170693/55170694

    Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China

       Inquiry Now

  • Barium

  • Casno:

    7440-39-3

    Barium

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 0.0-0.0

    Ocean inorganic department is a professional supplier and exporter engaging in inorganic chemical materials and metal organic compounds. Over the past years, our company is committed to improving the product quality and developing new products, in

    Hangzhou Ocean Chemical Co.ltd is a comprehensive chemical enterprise which mainly integrates R&D, production, marketing business of chemical in lab-pack, semi-bulk and bulk-quanti

  •  Hangzhou Ocean Chemical Co., Ltd.

    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-88025872, 28272092, 28272096

    Address:Room 623 ,Building No 1 , COFCO Radius Commercial Center Xiwen Road, Xiacheng District, Hangzhou, Zhejiang Province, China

       Inquiry Now

  • barium

  • Casno:

    7440-39-3

    barium

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

    Kono Chem Co.,Ltd is a leading producer of standardized herbal extracts, natural active ingredients and APIs for pharmaceutical, health food and cosmetic industries. Annually, mo

  •  Kono Chem Co.,Ltd

     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:86-29-86107037-8015

    Address:No.11 Daqing Road,Lianhu District,Xi’an 710082,China

       Inquiry Now

  • factory directly supply CAS  7440-39-3 with competitive price

  • Casno:

    7440-39-3

    factory directly supply CAS 7440-39-3 with competitive price

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 112.0-112.0

    Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard

    Zhuo Zhou Wen Xi Import and Export Co., Ltd. is a company mainly engaged in the export of pharmaceutical raw materials. Its parent company is (Wen Xi Pharma), including three subs

  •  Zhuozhou Wenxi import and Export Co., Ltd

     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:+86-13111626072

    Address:Room 1710, Baoxin International Phase I, 19 Guanyun East Road, Zhuozhou, Hebei

       Inquiry Now

  • Barium

  • Casno:

    7440-39-3

    Barium

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

    Antimex Chemical Limied, was founded in 2001, we are specializing in manufacturing & researching of Active pharmaceutical Ingredients,Veterinary pharm APIs,cosmetic ingredients,and

  •  Antimex Chemical Limied

    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:0086-21-50563169

    Address:Room1027,No.Jinyu Road,Pudong

       Inquiry Now

  • Total:11 Page 1 of 1 1
Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 7440-39-3

Chemistry

Molecular Structure:

Molecular Formula: Ba
Molecular Weight: 137.327
IUPAC Name: Barium
Synonyms of Barium (CAS NO.7440-39-3): Bario ; Bario [Spanish] ; Baryum ; Baryum [French] ; EINECS 231-149-1 ; HSDB 4481 ; Barium [UN1400] [Dangerous when wet] ; Barium and soluble compounds ; Barium, soluble compounds ; Barium, water-soluble compounds, n.o.s. ; UN1400
CAS NO: 7440-39-3
Classification Code: Inorganics ; Alkali MetalsMetal and Ceramic Science ; Barium ; Metals ; Reduction ; Synthetic Reagents ; AA Standard SolutionsAlphabetic ; AAS ; B ; BA - BHSpectroscopy ; ChlorideSpectroscopy ; Matrix Selection ; Reference/Calibration Standards ; Single Solution ; Standard Solutions
Melting point:  725 °C(lit.)
Boiling point:  1640 °C(lit.)
Density:  3.6 g/mL at 25 °C(lit.)
Storage temp.:  water-free area
Form:  rod

Uses

  Barium (CAS NO.7440-39-3) is commonly used for the preparation of barium salts, alloys, fireworks,  nuclear reactors, and it is also a good oxygen scavenger to produce refined copper.

Toxicity Data With Reference

RTECS:  CQ8370000

Consensus Reports

Reported in EPA TSCA Inventory. Community Right-To-Know List.

Safety Profile

Hazard Codes of Barium (CAS NO.7440-39-3): CorrosiveC,IrritantXi,FlammableF
Risk Statements: 25-26-34-36/37/38-14/15-11 
R25: Toxic if swallowed. 
R26: Very toxic by inhalation. 
R34: Causes burns. 
R36/37/38: Irritating to eyes, respiratory system and skin. 
R14 :Reacts violently with water. 
R15: Contact with water liberates extremely flammable gases. 
R11: Highly flammable.
Safety Statements: 23-26-36/37/39-45-43-16 
S23: Do not breathe vapour. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S43: In case of fire use ... (there follows the type of fire-fighting equipment to be used.) 
S16: Keep away from sources of ignition.
RIDADR: UN 3264 8/PG 3
WGK Germany: 3
RTECS: CQ8370000
HazardClass: 8
PackingGroup: III
Water and stomach acids solubilize barium salts and can cause poisoning. Symptoms are vomiting, colic, diarrhea, slow irregular pulse, transient hypertension, and convulsive tremors and muscular paralysis. Death may occur in a few hours to a few days. Half-life of barium in bone has been estimated at 50 days. Dust is dangerous and explosive when exposed to heat, flame, or chemical reaction. Violent or explosive reaction with water, CCl4, fluorotrichloromethane, trichloroethylene, and C2Cl4. Incompatible with acids, C2Cl3F3, C2H2FCl3, C2HCl3 and water, 1,1,2-trichlorotrifluoroethane, and fluorotrichloroethane. The powder may ignite or explode in air or other oxidizing gases.

Standards and Recommendations

OSHA PEL: TWA 0.5 mg(Ba)/m3
ACGIH TLV: TWA 0.5 mg(Ba)/m3; Not Classifiable as a Human Carcinogen
DFG MAK: 0.5 mg(Ba)/m3
DOT Classification:  4.3; Label: Dangerous When Wet

Analytical Methods

For occupational chemical analysis use NIOSH: Barium, Soluble Compounds, 7056.

Specification

 

Barium is a chemical element with symbolBa and atomic number56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity barium is never found in nature as a free element. Its hydroxide was known in pre-modern history as baryta; this substance does not occur as a mineral, but can be prepared by heating barium carbonate.
The most common naturally occurring minerals of barium are barite (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3), both being insoluble in water. Barium's name originates from the alchemical derivative "baryta", which itself comes from Greek βαρ?ς (barys), meaning "heavy." Baric is the adjective form of barium. Barium was identified as a new element in 1774, but not reduced to a metal until 1808 with the advent of electrolysis.
Barium has only a few industrial applications. The metal has been historically used as a getter for vacuum tubes. It is a component of YBCO (high-temperature superconductors) and electroceramics, and is added to steel and cast iron to reduce the size of carbon grains within the microstructure of the metal. Barium compounds are added to fireworks to impart a green color. Barium sulfate is used as an insoluble heavy additive to oil well drilling fluid, as well as in a purer form, as X-ray radiocontrast agents for imaging the human gastrointestinal tract. Soluble barium compounds are poisonous due to release of the soluble barium ion, and therefore have been used as rodenticides.