Detail of "1304-28-5"

MSDS Download
CAS Number:
1304-28-5
Name:
Barium oxide (BaO)
Superlist Name:
Barium oxide
Molecular Structure:
Formula:
BaO
Molecular Weight:
153.33
Deleted CAS:
12231-51-5
Synonyms:
Bariumoxide (8CI);Baria;Barium monoxide;Barium oxide (Ba2O2);Barium oxide anhydrous;
EINECS:
215-127-9
Density:
5.72 g/cm³
Melting Point:
1923 °C
Boiling Point:
~2000 °C
Solubility:
3.48 g/100 mL (20 °C) in water
Appearance:
white to cream powder
Hazard Symbols:
T
Risk Codes:
20-25-34
Safety:
26-36/37/39-45 Details
Transport Information:
UN 1884 6.1/PG 3

Alkaline durability and liquidus temperature of glasses in the system Na2O-RO-ZrO2-SiO2: Alkaline durability and liquidus temperature of glasses in the system Na2O-RO-ZrO2-SiO2. Kume, Makoto (Res. Lab., Nippon Sheet Glass Co., Ltd., Itami, Japan). Glastech. Ber., 56(Int. Glaskongr., 13th, Band 2), 1069-74 (English) 1983. CODEN: GLBEAQ. ISSN: 0017-1085. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) Replacement of CaO by BaO in the system Na2O-CaO-ZrO2-SiO2 for fibers for concrete reinforcement is effective in decreasing the crystn. tendency and increasing the alkali durability. The influence of BaO is most effective when the BaO is about equimolar with CaO. Glasses not contg. alk. earth oxides are less durable in an NaOH soln., while alk. earth ions either in the glass or in the soln. increase the alkali durability. On the glass surface attacked in an NaOH soln. contg. alk. earth ions, Na2O and SiO2 decrease and ZrO2 and RO increase with increasing time. And finally the chem. compn. of the surface approaches the const. compn. 37RO-18ZrO2-45SiO2.Except for chemicals metioned above, 1305-78-8 and 1304-28-5 are also used. .

Glass formation in the system calcium oxide-barium oxide-boron oxide-tellurium dioxide: Glass formation in the system calcium oxide-barium oxide-boron oxide-tellurium dioxide. Ivanova, I. (Bulg.). Stroit. Mater. Silik. Prom-st., 24(8), 24-5 (Bulgarian) 1983.Several reagents with their cas registry numbers 7446-07-3 and 1304-28-5 are used here. CODEN: SMSIAO. ISSN: 0562-1836. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) Glass formation in the CaO-BaO-B2O3-TeO2 system was investigated in relation to its compn. On a lab. scale, samples contg. 20, 40, 60, and 80 mol% TeO2 were examd. The 5-g samples were melted at 800-1100°, homogenized 30 min, and cooled. Stable glasses were formed at ￡80 mol.% TeO2. Above this value, an uncontrollable decrease in transparency occurred. .