订购电话:4001650900

Barium sulfate

Cas:
7727-43-7
Molecular Structure:
MDL:
--MFCD00003455
Molecular Formula:
BaSO4
Molecular Weight:
233.39
Alias:
Baryte
Product order:
Name Specifications Packing Price Delivery
Barium sulfate USP 500g RMB 334.4 促销
Barium sulfate precipitated, powder 25Kg RMB 1298 现货
Barium sulfate precipitated, powder 500g RMB 77 促销
Barium sulfate 99%,1μm 25Kg RMB 968 现货
Barium sulfate 99%,1μm 500g RMB 79.2 促销
Barium sulfate 4N 25g RMB 107.8 Consulting service
Barium sulfate SP 25g RMB 107.8 Consulting service
Barium sulfate AR 500g RMB 51.7 促销
Character:
白色重质细微粉末。重结晶出来就是有颜色的粒状。无味,无毒。1600℃以上分解。溶于热浓硫酸,不溶于水、有机物及无机酸,苛性碱溶液中,溶于热亚硫酸及热浓硫酸中。化学性质稳定,与碳共热还原为硫化钡。 在空气中遇硫化氢或有毒气体也不变色。
密度:4.25-4.5
沸点:1149℃
   超细硫酸钡 在面漆中有极高光泽度,低树脂要求,稳定的分散性,能阻止油漆结块,提升油漆品质,增加流动性。颗粒细小(其颗粒细度几乎和二氧化钛一样细小),且会在白色或有色颜料的颗粒之间有着隔离作用,使颜料的颗粒相互保持一定的距离,提高了颜料的效率。
Quality Standard:
 
   GB/T1269-77
项目ltem                                      分析纯     化学纯
                                               (AR)       (CP)
盐酸可溶物Soluble in hydrochloric acid      ≤ 0.15       0.25
灼烧失重Loss on ignition,%                  ≤ 1.5        1.5
氯化物(Cl)Chloride,%                        ≤ 0.005      0.02
可溶性硫酸盐(以SO4计)Soluble sulfate,%      ≤ 0.005      0.03
氮化合物(N)Nitrogen compounds,%             ≤ 0.005      0.01
铁(Fe)Iron,%                                ≤ 0.0005     0.001
砷(As)Arsenic,%                             ≤ 0.0001     0.001
可溶性的钡盐(以Ba计)Soluble barium salt,%   ≤ 0.0001     0.0005
重金属(以Pb计)Heavy metals,%                ≤ 0.0005     0.001


超细硫酸钡:

BaSO4纯度Purity                              ≥99.0%
挥发物Volatile matter                       0.2% (105℃)
PH值                                         7-9
亮度brightness                               99
平均粒径particle size                        1μm
密度Density g/ml                             4.4
折射指数Refractive index                     1.64
筛余screen floating                         〈0.004%


品级Grade                               沉淀硫酸钡  
                                    (precipitated, powder)
loss on ignition                          ≤2%  
particle size                            2.4-4.8 μm
chloride (Cl-):                          ≤1000 ppm
Ca:                                      ≤1000 ppm
Cd:                                      ≤50 ppm
Co:                                      ≤50 ppm
Cu:                                      ≤50 ppm
Fe:                                      ≤50 ppm
K:                                       ≤100 ppm
Na:                                      ≤1000 ppm
Ni:                                      ≤50 ppm
Pb:                                      ≤50 ppm
Zn:                                      ≤500 ppm


品级Grade                           美国药典USP级  
                                         (USP)
鉴别试验IDENTITY                          PASS
PH TEST                                   3.5 - 10.0
硫化物LIMIT OF SULFIDE                    ≤ 0.5 PPM
酸溶性物质LIMIT OF ACID-SOLUBLE SUBSTANCE ≤ 0.3%
可溶性钡盐LIMIT OF SOLUBLE BARIUM SALTS   ≤ 0.001%
重金属HEAVY METALS                        ≤ 0.001%
残留溶剂RESIDUAL SOLVENTS                 MEETS THE REQUIREMENTS
含量ASSAY                                 97.5% ~ 100.5%

USP级
ASSAY 97.5 - 100.5 % 
pH OF AN AQUEOUS SUSPENSION 3.5 - 10.0 
SULFIDE (S) -- 0.5 ug/g 
ACID-SOLUBLE SUBSTANCES -- 0.3 % 
SOLUBLE BARIUM SALTS -- 0.001 % 
HEAVY METALS (as Pb) -- 0.001 % 

Storage:
密封保存。
用途  硝酸试粉法测定干旱作物含氮量。测定土壤消态氮。用于照相纸,人造象牙制造。橡胶填充剂。炼铜熔剂。
超细硫酸钡可作汽车漆(电著底漆、底漆、色底漆、面漆)、工业漆(彩色钢板漆、高固体含量漆、常温干燥漆、粉体涂料、烤漆、UV及EB硬化漆、容器漆、水性及油性漆)、建筑涂料(乳胶漆、水性和油性漆)、木漆涂料、印刷油墨、热塑性塑胶、热固性塑胶、弹性胶和密封胶。
上海紫一试剂厂   © 2024 All Rights Reserved      备案号:沪ICP备19037119号-1     
网站地图:
试剂CAS试剂分类试剂产品实验仪器耗材分类实验仪器耗材新闻资讯
   沪公网安备 31012002003055号