溴化钙

溴化钙用途

【用途一】
主要用作海洋石油钻井完井液、固井液、修井液
【用途二】
用作医药中枢神经抑制剂，用于石油钻井，制造溴化铵、光敏纸、灭火剂、制冷剂等
【用途三】
用作分析试剂，也用于照相、制药工业
【用途四】
用于石油钻井。也用于制造溴化铵及光敏纸、灭火剂、制冷剂等。医药上用作中枢神经抑制药，具有抑制、镇静作用，用以治疗神经衰弱、癫痫等症。

溴化钙名称

[ CAS 号 ]:
7789-41-5

[ 中文名 ]:
溴化钙

[ 英文名 ]:
Calcium bromide

[英文别名 ]:

MFCD00010902
calcium bromide
EINECS 232-164-6
Calcium bromide, ultra dry

溴化钙物理化学性质

[ 密度 ]:
3.353 g/mL at 25 °C(lit.)

[ 沸点 ]:
806-812°C

[ 熔点 ]:
730°C

[ 分子式 ]:
Br₂Ca

[ 分子量 ]:
199.88600

[ 闪点 ]:
806-812°C

[ 精确质量 ]:
197.79900

[ 外观性状 ]:
白色粉末

[ 储存条件 ]:
库房通风低温干燥

[ 水溶解性 ]:
不同温度(℃)时每100毫升水中的溶解克数: 125g/0℃;132g/10℃;143g/20℃;213g/40℃ 278g/60℃;295g/80℃;312g/100℃

溴化钙MSDS

溴化钙毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EV9328000

CHEMICAL NAME :: Calcium bromide

CAS REGISTRY NUMBER :: 7789-41-5

LAST UPDATED :: 199712

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: Br2-Ca

MOLECULAR WEIGHT :: 199.90

WISWESSER LINE NOTATION :: .CA..E2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4100 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - respiratory depression Skin and Appendages - hair

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 437 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 740 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1580 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - rat Ascites tumor

DOSE/DURATION :: 2300 mg/kg

REFERENCE :: GANNA2 Gann. Japanese Journal of Cancer Research. (Tokyo, Japan) V.1-75, 1907-84. For publisher information, see JJCREP. Volume(issue)/page/year: 54,155,1963 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1726 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 51 (estimated)

溴化钙安全信息

[ 符号 ]:

GHS05

[ 信号词 ]:
Danger

[ 危害声明 ]:
H318

[ 警示性声明 ]:
P280-P305 + P351 + P338

[ 危害码 (欧洲) ]:
Xi:Irritant

[ 风险声明 (欧洲) ]:
R38

[ 安全声明 (欧洲) ]:
S22-S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
2

[ RTECS号 ]:
EV9328000

[ 海关编码 ]:
2827590000

溴化钙合成路线

溴化钙上下游产品

溴化钙上游产品

溴化钙下游产品

溴化钙制备

1.溴化亚铁法在盛有水的反应器中，加入铁屑，在搅拌下分批加入溴素，于40℃下进行反应生成溴化亚铁，再加入氢氧化钙调Ph值，加热至沸，然后经冷却、分离除去氢氧化亚铁，滤液经蒸发、冷却至30℃静置，经脱色、过滤、蒸发至210℃左右，再经冷却，制得溴化钙。其反应方程式如下：

2.直接法将氨气通入石灰乳，加入溴素，于70℃以下进行反应，过滤，滤液保持在碱性条件下逐出氨，静置，脱色，滤液经浓缩，制得溴化钙成品。 3.取55mL 47%的氢溴酸加50mL水稀释，在搅拌下往稀溶液中慢慢加入20g碳酸钙: 即有CO2放出并形成溴化钙酸溶液，滤去不溶性杂质，滤液在水浴上加热浓缩，至液面形成一层结晶薄膜。静置，冷却至室温，即有六水合溴化钙结晶析出，吸滤，用滤纸吸干结晶。然后加热六水合溴化钙至其熔点（382℃）附近脱水，再提高温度至50～60℃，最后升温至400℃，同时通入溴化氢和氢气的混合干燥气体，可以得到无水溴化钙。

溴化钙海关

[ 海关编码 ]: 2827590000

溴化钙文献

Pulsed Discharge Helium Ionization Detector for Highly Sensitive Aquametry.

Anal. Sci. 32 , 177-82, (2016)

Trace moisture quantitation is crucial in medical, civilian and military applications. Current aquametry technologies are limited by the sample volume, reactivity, or interferences, and/or instrument ...

Inhibition of polybrominated dibenzo-p-dioxin and dibenzofuran formation from the pyrolysis of printed circuit boards.

Environ. Sci. Technol. 41(3) , 957-62, (2007)

Waste printed circuit boards containing brominated flame retardants were pyrolyzed in a high-temperature melting system to observe the formation behaviors of polybrominated dibenzo-p-dioxins (PBDDs) a...

Conversion of CHF3 to CH2=CF2 via reaction with CH4 and CaBr2.

Environ. Sci. Technol. 42(15) , 5795-9, (2008)

Reaction of CHF3 and CH4 over CaBr2 was investigated at 400-900 degrees C as a potential route for transforming the highly potent greenhouse gas, CHF3, into the valuable product CH2=CF2. The homogeneo...

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溴化钙