Barium sulfate CAS 13462-86-7

Chemical Property:

Molecular Formula	BaO4S
Molar Mass	233.39 Nws
Qhov ntom	4.5
Melting Point	1580 ° C
Boling Point	decomposes ntawm 1580 ℃ [KIR78]
Dej Solubility	0.0022 g / L (50 ºC)
Solubility	dej: insoluble
Qhov tshwm sim	Dawb hmoov
Specific Gravity	4.5
Xim	Dawb rau daj
Exposure Limit	ACGIH: TWA 5 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Solubility Product Constant (Ksp)	9.97 :wb
Merck	14,994 ib
PH	3.5-10.0 (100g / l, H2O, 20 ℃) ncua
Kev cia khoom	Cia kub: tsis muaj kev txwv.
Kev ruaj ntseg	ruaj khov.
rhiab heev	Yooj yim absorbing noo noo
MDL	PAB 00003455
Physical thiab Chemical Properties	cov khoom tsis muaj xim tsis muaj xim orthorhombic siv lead ua los yog dawb zoo li hmoov. melting point 1580 ℃ txheeb ze ntom ntom 4.50 (15 ℃) solubility yuav luag insoluble nyob rau hauv dej, ethanol thiab acid. Soluble nyob rau hauv kub concentrated sulfuric acid. tsis muaj xim orthorhombic siv lead ua los yog dawb amorphous hmoov. txheeb ze ntom ntom 4.50 (15 ° C). Melting point 1580 ° C. Polycrystalline transformation tshwm sim nyob ib ncig ntawm 1150 ° c. Qhov tseem ceeb decomposition pib ntawm li 1400 °c. Tshuaj stability. Xyaum insoluble hauv dej, ethanol thiab acids. Soluble nyob rau hauv kub concentrated sulfuric acid, qhuav yooj yim rau agglomerate. 600 C nrog carbon tuaj yeem raug txo kom barium sulfide.
Siv	Nws yog tsuas yog siv los ua tus neeg sawv cev hnyav rau cov roj thiab cov pa roj av drilling av nkos, thiab tseem yog ib qho tseem ceeb ntawm cov ntxhia raw cov ntaub ntawv rau extracting hlau barium thiab npaj ntau yam barium tebchaw. Cov ntsiab lus tseem ceeb tshaj plaws hauv kev lag luam yog barium carbonate, barium chloride, sulfuric acid, barium nitrate, barium hydroxide, barium oxide, barium peroxide, barium chromate, Barium manganate, barium chlorate, lithopone, barium polysulfide, thiab lwm yam Barium compounds tau dav siv. raws li raw cov ntaub ntawv thiab muab tub lim rau roj hmab, yas, pigments, coatings, ntawv ua, textiles, xim, inks, electrodes; Siv raws li barium-raws li roj, roj refining, beet qab zib, Rayon raw khoom; Siv los ua tshuaj tua kab, tshuaj tua kab mob, tshuaj tua kab mob, tshuaj tua kab mob, tshuaj tua kab mob, Green pyrotechnic, teeb liab foob pob, tracer, kho mob X-ray yees duab ntsuas; Kuj tseem siv rau hauv iav, ceramics, tawv, electronics, tsev ntaub ntawv, metallurgy thiab lwm yam departments. Barium hlau tuaj yeem siv rau TV thiab tiag

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Product Detail

Khoom cim npe

Hazard Cov Cim	Xn – Ua phem
Risk Codes	R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia	S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S36 - Hnav khaub ncaws tiv thaiv zoo. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
WGK Germany	-
RTECS	CR0600000
TSCA	Yog lawm
HS Code	28332700 ib
Toxicity	LD50 qhov ncauj hauv Luav:> 20000 mg / kg

Taw qhia

Tasteless, non-toxic. Decomposition tshaj 1600 ℃. Soluble nyob rau hauv kub concentrated sulfuric acid, insoluble nyob rau hauv dej, organic thiab inorganic acids, caustic kua, soluble nyob rau hauv kub sulfurous acid thiab kub concentrated sulfuric acid. Cov khoom siv tshuaj yog qhov ruaj khov, thiab nws raug txo kom barium sulfide los ntawm tshav kub nrog carbon. Nws tsis hloov xim thaum raug hydrogen sulfide lossis toxic gases hauv huab cua.

Yav dhau los: Titanium (IV) oxide CAS 13463-67-7

Tom ntej: Tom ntej: Ammonium Polyphosphate CAS 68333-79-9

Sau koj cov lus ntawm no thiab xa tuaj rau peb