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mankhwala

Barium sulphate CAS 13462-86-7

Chemical Property:

Molecular Formula BaO4S
Molar Misa 233.39
Kuchulukana 4.5
Melting Point 1580 ° C
Boling Point kuwola pa 1580 ℃ [KIR78]
Kusungunuka kwamadzi 0.0022 g/L (50 ºC)
Kusungunuka madzi: osasungunuka
Maonekedwe White ufa
Specific Gravity 4.5
Mtundu Zoyera mpaka zachikasu
Malire Owonetsera ACGIH: TWA 5 mg/m3OSHA: TWA 15 mg/m3; TWA 5 mg/m3NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Solubility Product Constant(Ksp) pKs: 9.97
Merck 14,994
PH 3.5-10.0 (100g/l, H2O, 20 ℃) ​​kuyimitsidwa
Mkhalidwe Wosungira Kutentha kosungira: palibe zoletsa.
Kukhazikika Wokhazikika.
Zomverera Mosavuta kuyamwa chinyezi
MDL Mtengo wa MFCD00003455
Zakuthupi ndi Zamankhwala katundu colorless orthorhombic kristalo kapena woyera zooneka ufa.
malo osungunuka 1580 ℃
kachulukidwe wachibale 4.50 (15 ℃)
solubility pafupifupi insoluble m'madzi, Mowa ndi asidi. Kusungunuka mu otentha kwambiri sulfuric asidi.
orthorhombic kristalo wopanda colorless kapena woyera amorphous ufa. Kachulukidwe wachibale 4.50 (15 digiri C). Malo osungunuka 1580 °c. Kusintha kwa polycrystalline kumachitika pafupifupi 1150 ° C. Kuwola kwakukulu kunayamba pafupifupi 1400 ° C. Kukhazikika kwamankhwala. Pafupifupi sungunuka m'madzi, Mowa ndi zidulo. Kusungunuka mu otentha kwambiri sulfuric asidi, youma zosavuta agglomerate. 600 C ndi carbon akhoza kuchepetsedwa kukhala barium sulfide.
Gwiritsani ntchito Amagwiritsidwa ntchito kwambiri ngati cholemetsa chopangira mafuta ndi gasi pobowola matope, komanso ndi mchere wofunikira pakuchotsa zitsulo za barium ndikukonzekera mitundu yosiyanasiyana ya barium. Mankhwala ofunikira kwambiri a barium mumakampani ndi barium carbonate, barium chloride, sulfuric acid, barium nitrate, barium hydroxide, barium oxide, barium peroxide, barium chromate, Barium manganate, barium chlorate, lithopone, barium polysulfide, ndi zina zambiri. monga zopangira ndi zodzaza mphira, mapulasitiki, utoto, zokutira, kupanga mapepala, nsalu, utoto, inki, maelekitirodi; Amagwiritsidwa ntchito ngati mafuta opangidwa ndi barium, kuyenga mafuta, shuga wa beet, zida za Rayon; Amagwiritsidwa ntchito ngati mankhwala ophera tizilombo, ma sterilants, rodenticides, zophulika, Green pyrotechnic, bomba lazizindikiro, tracer, zizindikiro zachipatala za X-ray kujambula; Amagwiritsidwanso ntchito mu galasi, ceramics, zikopa, zamagetsi, zomangira, zitsulo ndi madipatimenti ena. Chitsulo cha Barium chingagwiritsidwe ntchito pa televizioni ndi zenizeni

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xn - Zowopsa
Zizindikiro Zowopsa R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza.
R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S22 - Osapumira fumbi.
S24/25 - Pewani kukhudzana ndi khungu ndi maso.
S36 - Valani zovala zoyenera zodzitetezera.
S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
WGK Germany -
Mtengo wa RTECS CR0600000
TSCA Inde
HS kodi 28332700
Poizoni LD50 pakamwa pa Kalulu: > 20000 mg/kg

 

Mawu Oyamba

Zosakoma, zopanda poizoni. Kuwola pamwamba pa 1600 ℃. Kusungunuka mu otentha anaikira sulfuric asidi, insoluble m'madzi, organic ndi inorganic zidulo, caustic njira, sungunuka otentha sulfure asidi ndi otentha kwambiri sulfuric acid. Mankhwalawa ndi okhazikika, ndipo amachepetsedwa kukhala barium sulfide ndi kutentha ndi carbon. Sisintha mtundu ukakumana ndi hydrogen sulfide kapena mpweya wapoizoni mumlengalenga.


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