硼酸钙
硼酸钙用途
是无碱玻璃工业的新原料，也用于防锈涂料、阻燃剂、防霉剂以及制药工业等。
硼酸钙名称
[ CAS 号 ]:
12007-56-6
[ 中文名 ]:
硼酸钙
[ 英文名 ]:
Boron calcium oxide (B4CaO7)
[英文别名 ]:
- CALCIUM PYROBORATE
- colemanite
- Boroncalciumoxide
- CALCIUM TETRABORATE
硼酸钙物理化学性质
[ 分子式 ]:
B4CaH2O7
[ 分子量 ]:
197.33400
[ 精确质量 ]:
197.98000
[ PSA ]:
107.95000
[ 储存条件 ]:
库房低温通风干燥
[ 水溶解性 ]:
soluble H2O, acids; evolves oxygen [HAW93]
硼酸钙毒性和生态
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- EV9300000
- CHEMICAL NAME :
- Calcium borate
- CAS REGISTRY NUMBER :
- 12007-56-6
- LAST UPDATED :
- 199701
- DATA ITEMS CITED :
- 7
- MOLECULAR FORMULA :
- B4-Ca-O7
- MOLECULAR WEIGHT :
- 195.32
- WISWESSER LINE NOTATION :
- CA B4-O7
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 :
- 5600 mg/kg
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 5900 mg/kg
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 3900 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981 ** OTHER MULTIPLE DOSE TOXICITY DATA **
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 9800 ug/m3/4H/17W-I
- TOXIC EFFECTS :
- Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Nutritional and Gross Metabolic - weight loss or decreased weight gain Nutritional and Gross Metabolic - changes in calcium
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - guinea pig
- DOSE/DURATION :
- 9800 ug/m3/4H/17W-I
- TOXIC EFFECTS :
- Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Nutritional and Gross Metabolic - weight loss or decreased weight gain Nutritional and Gross Metabolic - changes in chlorine
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981 ** REPRODUCTIVE DATA **
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- DOSE :
- 9800 ug/m3
- SEX/DURATION :
- male 17 week(s) pre-mating
- TOXIC EFFECTS :
- Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(6),53,1981
硼酸钙制备
1．多硼酸钠石灰法：在一定的碳酸钠下，用二氧化碳加压分解硼酸镁，分离出硼渣的碳解液主要以多硼酸钠形式存在，用此滤液与石灰乳反应生成控制物料B2O3/CO为0.9～1，于40～65℃下进行反应。生成的偏硼酸钙沉淀经过滤、洗涤、干燥、粉碎，制得偏硼酸钙成品。其反应式如下： 2H3BO3+Ca(OH)2→CaO.B2O3.4H2O
2．硼酸铵石灰乳法：碳氨法制硼酸的氨解过滤液在适当加热下用压缩空气脱除剩余的碳酸氢铵，然后送入合成器中。再加来自消化器的石灰乳，搅拌反应。反应时控制硼钙比（B2O3/CO）在0.9～1.1，温度60～65℃，反应时间约22h。生成的偏硼酸钙沉淀经过滤、干燥、粉碎后，制得成品：2MgO.B2O3+2NH4HCO3+H2O→2NH4HBO3+2MgCO32NH4HBO3+ Ca(OH)2→CaO.B2O3.4H2O+NH3↑
3。一步法硼酸钙：用二氧化碳加压分解硼镁矿，分离出硼渣的碳解液主要以硼酸形式存在，用此滤液在一定的活化剂作用下，与10%左右的石灰乳中和反应，生成硼酸钙，经分离、干燥、即得硼酸钙。
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