硼酸三甲酯
硼酸三甲酯用途
二、用作半导体的掺杂源，也用于高纯硼的制备
三、本品用作石蜡、树脂、石油的溶剂制造，酮的催化剂，还用于电子工业等
硼酸三甲酯名称
[ CAS 号 ]:
121-43-7
[ 中文名 ]:
三甲氧基硼烷
[ 英文名 ]:
Trimethyl borate
[中文别名 ]:
[英文别名 ]:
- Trimthyl borate
- BORON METHOXIDE
- EINECS 204-468-9
- Methyl Borate
- B(OCH3)3
- TRIMETHYL BORATE FOR SYNTHESIS
- Trimethyl borate
- boric acid trimethyl ester
- trimethyl boronate
- Boric acid (HBO), trimethyl ester
硼酸三甲酯物理化学性质
[ 密度 ]:
0.9±0.1 g/cm3
[ 沸点 ]:
67.5±0.0 °C at 760 mmHg
[ 熔点 ]:
-34 °C
[ 分子式 ]:
C3H9BO3
[ 分子量 ]:
103.913
[ 闪点 ]:
-8.3±0.0 °C
[ 精确质量 ]:
104.064476
[ PSA ]:
27.69000
[ LogP ]:
1.45
[ 外观性状 ]:
一种无色透明液体
[ 蒸汽密度 ]:
3.59 (vs air)
[ 蒸汽压 ]:
157.1±0.1 mmHg at 25°C
[ 折射率 ]:
1.335
[ 储存条件 ]:
库房通风低温干燥,与氧化剂分开存放
[ 稳定性 ]:
Stable. Incompatible with oxidizing agents. Decomposes slowly in the presence of moisture, rapidly in water. Flammable.
[ 水溶解性 ]:
reacts
硼酸三甲酯MSDS
硼酸三甲酯毒性和生态
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- ED5600000
- CHEMICAL NAME :
- Boric acid, trimethyl ester
- CAS REGISTRY NUMBER :
- 121-43-7
- BEILSTEIN REFERENCE NO. :
- 1697939
- LAST UPDATED :
- 199710
- DATA ITEMS CITED :
- 12
- MOLECULAR FORMULA :
- C3-H9-B-O3
- MOLECULAR WEIGHT :
- 103.93
- WISWESSER LINE NOTATION :
- 1OBO1&O1
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- Standard Draize test
- ROUTE OF EXPOSURE :
- Administration into the eye
- SPECIES OBSERVED :
- Rodent - rabbit
- REFERENCE :
- AJOPAA American Journal of Ophthalmology. (Ophthalmic Pub. Co., 435 N. Michigan Ave., Suite 1415, Chicago, IL 60611) Series 3: V.1- 1918- Volume(issue)/page/year: 29,1363,1946 ** ACUTE TOXICITY DATA **
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 6140 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 1600 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1290 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Administration onto the skin
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 1980 uL/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 23,95,1962
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 1600 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 14KTAK "Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964 Volume(issue)/page/year: -,693,1964 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 74430 No. of Facilities: 50 (estimated) No. of Industries: 3 No. of Occupations: 4 No. of Employees: 1090 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 74430 No. of Facilities: 192 (estimated) No. of Industries: 7 No. of Occupations: 7 No. of Employees: 4878 (estimated) No. of Female Employees: 369 (estimated)
硼酸三甲酯安全信息
[ 符号 ]:
GHS02, GHS07, GHS08
[ 信号词 ]:
Danger
[ 危害声明 ]:
H225-H312-H319-H360FD-H370
[ 警示性声明 ]:
P201-P210-P260-P302 + P352 + P312-P308 + P311-P337 + P313
[ 靶器官 ]:
Central nervous system, Eyes
[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
[ 危害码 (欧洲) ]:
F:Flammable;Xn:Harmful;
[ 风险声明 (欧洲) ]:
R11;R21
[ 安全声明 (欧洲) ]:
S16-S27-S36/37/39-S45-S25-S23-S2
[ 危险品运输编码 ]:
UN 2416 3/PG 2
[ WGK德国 ]:
3
[ RTECS号 ]:
ED5600000
[ 包装等级 ]:
II
[ 危险类别 ]:
3
[ 海关编码 ]:
2920909090
硼酸三甲酯合成路线
硼酸三甲酯上下游产品
硼酸三甲酯上游产品
硼酸三甲酯下游产品
硼酸三甲酯制备
1.可用多种方法合成，如从吡啶-三氟化硼复合物制取，或用甲醇；氟化硼；甲醇；硼酸；原硅酸甲酯；卤化硼等制取。
2.将硼酸在铂容器熔融后所得氧化硼迅速冷却并粉碎，然后贮存在有五氧化二磷的干燥器中。
仪器;支置如图。三颈园底烧瓶的瓶颈为磨口和滑动按头。带玻璃容器R(盛氧化硼用)的橡胶寨塞在A中。容器的下端张开并磨口使之能与牵首的玻璃球阀」)向上密切相接。错丝搅拌器E是用来打碎接近容器出口处可能形成的块状物的。烧瓶的B颈接冷凝器，其上端熔接用以盛氯化钙的U形管。带弯玻璃棒F的橡胶塞塞入C颈作为搅拌器。
制备硼酸甲醋时，关闭R的球阀。在R中盛75克细粉状的氧化硼。从B颈放入320毫升绝对甲醇，接上冷凝器。不i-1 ,稍稍把球阀D往下松一下，氧化硼就以任何需要的速度落甲醇中，这样就‘叮以方便控制放热反应的过程，以免反应过于激烈。加入城化硼后，往前往后旋转玻璃棒F以搅拌溶液。
氧化硼的加入要足够快o以保持混合物的热度，但不能快到引起溶液沸腾。这个加料过程大约需要10分钟。让反应混合物放冷，析出雪白色的结晶硼酸。倾出浊液，用Johnson分馏柱蒸馏，得175毫升硼酸甲酯和甲醉的恒沸混合物。用冷浓硫酸处理液休以除去甲- o弃去底层，硼酸甲酯用硫酸处理两次，用Johnson柱分馏，并去次真空分馏，最后得到纯产品，产率42%
用相似的方法可以制得硼酸乙酯，产率31%
在1升园底烧瓶上安装一支直径2. 5.米长75厘米的分馏柱，以4.}毫米的不诱钢螺旋填充使达到15个理论.扳的效率。瓶中放入0.5摩尔的硼砂(Na2B4O210H2O,、16摩尔甲醇和1摩尔硫酸。慢慢蒸馏反应混合物，在54℃恒沸J.气可L}得到大部分产物，小部分在54--62℃得到。产率92.9%
3.制法：
于装有搅拌器、分馏装置（分馏柱直径2.5cm，高75cm，内装不锈钢螺旋环，使其达到15理论塔板的效应）的反应瓶中，加入硼砂0.5mol，甲醇16mol，硫酸1mL，慢慢加热回流，在54℃收集到大部分的恒沸点硫出物，少部分的54～62℃的馏出物，硼酸三甲酯总收率92.9%。
硼酸三甲酯海关
[ 海关编码 ]: 2920909090
[ 中文概述 ]:
2920909090 其他无机酸酯（不包括卤化氢的酯）（包括其盐及它们的卤化，磺化，硝化和亚硝化衍生物）。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0%
[ 申报要素 ]: 品名, 成分含量, 用途
[ Summary ]:
2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%
硼酸三甲酯文献
Soft Matter 11 , 5060-6, (2015)
Viscoelastic, gel-like, polymeric dispersions (HVPDs) can be prepared by crosslinking polyols with borax or boric acid in water under alkaline conditions. Rheologically similar HVPDs have been prepare...
Chloromethyl chlorosulfate: a new, catalytic method of preparation and reactions with some nucleophiles.Org. Biomol. Chem. 2 , 1554, (2004)
The reaction of liquid (gamma-) SO3 with CH2Cl2 at room temperature leads to SO3 insertion into the C-Cl bonds, giving the useful chloromethylating agent chloromethyl chlorosulfate (CMCS). The process...
Identification of epoxide functionalities in protonated monofunctional analytes by using ion/molecule reactions and collision-activated dissociation in different ion trap tandem mass spectrometers.J. Am. Soc. Mass Spectrom. 23(1) , 12-22, (2012)
A mass spectrometric method has been delineated for the identification of the epoxide functionalities in unknown monofunctional analytes. This method utilizes gas-phase ion/molecule reactions of proto...
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公司名：上海吉至生化科技有限公司
区域：上海市奉贤区
价格：
￥228.0/500ml
￥78.0/100ml
联系人：刘佳
产品详情：硼酸三甲酯
公司名：上海阿拉丁生化科技股份有限公司
区域：上海市浦东新区
价格：
￥需询单/1mg
￥需询单/1mg
￥需询单/1mg
￥需询单/1g
联系人：阿拉丁
产品详情：硼酸三甲酯
公司名：广东翁江化学试剂有限公司
区域：韶关市翁源县
价格：
￥120.0/500ml
联系人：朱丽丹
产品详情：硼酸三甲酯
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相关化合物
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