性久久五月丁香成人精品丝袜一区|久久视国产高清激情丁香国产激情|囯产强奸一级片婷婷丁香中文字幕|九九鲁欧美精品国产精品午夜主播|五月丁香自拍偷拍激情小说丁香五月|超碰午夜激情99热在线播放|日本91AVAV一本在线|玖玖总和久久白丝亚洲免费

<tfoot id="rbbbg"></tfoot>

About us

A total investment of 450 million yuan Weng 'an successfully signed a project

...[More]

organostannous

butyltin

Octyl tin

Recommended product

? Butylchlorodihydroxytin MT4101 ? Monobutyltin oxide ? Monobutyltin trichloride ? Tributyltin chloride ? Dibutyltin acetylpyruvate ? Dioctyltin oxide

RTV

Polyurethane coating

Curtain wall glass

Pharmaceutical intermediate

Case recommendation

? RTV ? Polyurethane coating ? Cable insulator ? Curtain wall glass ? Pharmaceutical inter

Video center

Video recommendation

? Guizhou Mingtai Chem

recruitment

Company job postings, click in[More]

News

News

Current position：home > News

Health hazards and protective measures of propylene

　　Used for acrylonitrile, propylene oxide, acetone, etc. Acrylonitrile, isopropyl alcohol, phenol, acetone, butanol and octanol, acrylic acid and its lipids, propylene oxide and propylene glycol,...[More]

11
2021-09
Polypropylene, acrylonitrile, isopropyl alcohol, acetone, propylene oxide and so on are the three basic synthetic substances

　　Acrylic polypropylene, acrylonitrile, isopropyl alcohol, acetone, propylene oxide and so on are the basic raw materials of the three synthetic substances. At room temperature propylene is a colorless, slightly sweet gas. Flammability is 2% to 11% explosion limit....[More]

11
2021-09
There are some environmental pollution problems in ethylene production

　　Low price Middle East downstream ethylene products such as polyethylene, ethylene glycol and so on flood into the Asia-Pacific and China market, will pose a serious threat to the Chinese market of related products. At present, there is a certain degree of environmental pollution in the process of ethylene production, ...[More]

11
2021-09
Precautions for use of explosion-proof ventilation system and equipment

　　Use notes: sealed operation, full ventilation. The oil depot should be equipped with emergency leakage treatment equipment. Use explosion-proof ventilation systems and equipment. Equipped with different types and quantities of fire fighting equipment and leakage emergency treatment equipment....[More]

11
2021-09
The difference between waterborne polyester coatings and oil-based coatings

　　Nitro paint is an organic solvent, its products contain benzene, toluene, xylene and its derivatives, so it has a strong toxicity, followed by nitro paint. In addition, nitrocellulose and polyester paints contain organic solvents that evaporate into the air during coating and drying, directly irritating the human sensory organs....[More]

11
2021-09
Failure analysis of condenser noncondensing gas in sieve plate distillation laboratory

　　At 20℃, the saturated vapor pressure of butadiene is 024Mpa, the saturated vapor pressure of hexane is 0016Mpa, and the steam partial pressure value and ΣPi of each component are the condenser pressure....[More]

11
2021-09
Production of organic tin by organic synthesis dehydrating agent

　　Moderately toxic, half lethal concentration (rats, inhaled)2300mg/m3. Alias: anhydrous tin chloride. Solubility: Soluble in water to release a lot of heat, soluble in ethanol, carbon tetrachloride, benzene, toluene, acetone, kerosene and gasoline. chloride Ttin chloride Molecular formula: SnCl4 Molecular weight: 260.52...[More]

11
2021-09
What are the characteristics of organotin stabilizers?

　　Industry used as PVC organotin stabilizer is mostly derivatives of dialkyl tin, its main characteristics are high transparency, good heat resistance, vulcanization resistance to pollution, but they are mostly toxic, ...[More]

11
2021-09
High efficiency catalyst for organotin tin esterification

　　品名：23850-94-4Butyltin triisocaprylate. Chinese name:三異辛酸單丁基三異錫。...[More]

11
2021-09