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偏硼酸钡

偏硼酸钡用途

用于涂料、陶瓷工业

偏硼酸钡名称

[ CAS 号 ]:
13701-59-2

[ 中文名 ]:
偏硼酸钡

[ 英文名 ]:
Barium boron oxide

[中文别名 ]:

硼酸钡

[英文别名 ]:

BARIUM BORATE
busan11m1
BARIUM METABORATE
EINECS 237-222-4
bariumdiborate
bbo(opticalcrystal)
MFCD00046182
BARIUM-M-BORATE
Boricacid,bariumsalt
BARIUM BORATE REAGENT

偏硼酸钡物理化学性质

[ 密度 ]:
3.25~3.35

[ 熔点 ]:
1060℃

[ 分子式 ]:
B₂BaO₄

[ 分子量 ]:
222.947

[ 精确质量 ]:
223.903519

[ PSA ]:
80.26000

[ 外观性状 ]:
白色结晶粉末

[ 折射率 ]:
1.528

偏硼酸钡毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CQ9570000

CHEMICAL NAME :: Barium metaborate

CAS REGISTRY NUMBER :: 13701-59-2

LAST UPDATED :: 199701

DATA ITEMS CITED :: 5

MOLECULAR FORMULA :: B2-O4.Ba

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 22750 mg/kg/91D-C

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 14,391,1994 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M0787 No. of Facilities: 504 (estimated) No. of Industries: 8 No. of Occupations: 12 No. of Employees: 6669 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0787 No. of Facilities: 2913 (estimated) No. of Industries: 37 No. of Occupations: 23 No. of Employees: 38267 (estimated) No. of Female Employees: 2430 (estimated)

偏硼酸钡安全信息

[ 危害码 (欧洲) ]:
Xi

[ 包装等级 ]:
II; III

[ 危险类别 ]:
6.1

偏硼酸钡制备

1.硼砂硫化钡法将重晶石和煤粉的混合物料焙烧，经萃取器热水浸取，得硫化钡料液，再与硼砂水溶液和硅酸钠水溶液各自计量加入反应器中，三种物料加完后，将反应器密闭，升温至110℃±5℃，搅拌反应2 h后，冷却至70～80℃，沉淀物经离心分离、水洗、干燥、粉碎后，制得偏硼酸钡成品。其

2.顶部籽晶熔盐法　我国首次用该法生长出新型无机非线性光学晶体材料偏硼酸钡。原料碳酸钡和硼酸按比例加入坩埚，同时加入适量助熔剂碳酸钠。采用电阻加热。当原料熔化后，保温数小时，使熔液完全熔融并均匀混合。将籽晶下至溶液中，降温，转动籽晶并缓慢向上提拉，生长出高质量的尺寸ф46mm×18mm的晶体。该法克服了自发成核数目过多的缺点。