Tin(II) chloride, C.I. 77864, dichlorotin, tin dichloride, dichlorostannane, Tin chloride anhydrous, Anhydrous stannous chloride, STANNOUS CHLORIDE,ANHYDROUS,REAGENT,   7772-99-8

E512, Tin(II) chloride, C.I. 77864, dichlorotin, tin dichloride, dichlorostannane, Tin chloride anhydrous, Anhydrous stannous chloride, STANNOUS CHLORIDE,ANHYDROUS,REAGENT,   7772-99-8

Tin(II) chloride

CAS: 7772-99-8

Molecular Formula: Cl2Sn

Names and Identifiers

Physico-chemical Properties

Risk and Safety

Upstream Downstream Industry

Nature

Colorless fuming liquid or colorless cubic crystals. Melting Point -33 °c. Boiling point 114.1 °c. The relative density of liquid was 226. Dissolve in cold water and release a lot of heat, soluble in ethanol, ether, benzene, toluene, carbon tetrachloride, carbon disulfide, etc. The foaming agent was burned immediately in case of H. Mixing with alkaline substances can cause explosion. It decomposes in case of hot water. In moist air, it absorbs water and generates trihydrate, giving off heat and hydrogen chloride gas, which is irritating and corrosive in the form of an approximate white smoke. Further water is added to produce compounds of different amounts of water of crystallization, such as 5, 8, and 9. Anhydrous tin chloride can absorb a large amount of chlorine at low temperature, while the volume of the formation of expansion and freezing point drop; Can react with ammonia to generate double salt; And alkali metal to generate Stannate. With alcohol, ether, aldehyde, ketone, carboxylic acid, Ester and other organic matter can be added reaction. Highly corrosive.

Preparation Method

metallic tin chloride method: metallic tin is melted, and then cold water is poured to generate tin flowers, which are added to a reactor, and dried chlorine gas is introduced to carry out a reaction to produce tin tetrachloride. The product is yellow in color due to an excess of free chlorine. Can add a few tin flakes, heat distillation, dry with
The drying vessel receives a fraction of 105 N120 ° C. To prepare a finished anhydrous tin chloride product.

Introduction

Solubility: 2700G/L water (20°C). Soluble in lye, tartaric acid, ethanol, acetone, ether, methyl ethyl ketone and isobutanol.

Use

raw materials for synthesis of organotin compounds, mordant for dyeing, manufacture of blue paper and photosensitive paper, lubricant additives. Small amounts are used in the electroplating industry, such as glass surface treatment to form conductive coatings and to improve wear resistance. It is used as a cationic polymerization catalyst for isobutylene, methyl styrene, etc. Used as analytical reagents, organic synthesis dehydrating agent.

Safety

acid corrosion products. Risk code: GB8.1 class 81053.UN N0.1827; IMDGCODE page 8228, class 8.1. Packed with iron drum lined with plastic bags, each net weight sokg, railway transport should be strictly in accordance with the Ministry of Railways "dangerous goods transport rules" in the dangerous goods loading table. The packaging should be complete and the loading should be safe. During transportation, it is necessary to ensure that the container does not leak, collapse, fall or damage. It is strictly prohibited to mix and transport with combustible materials or combustible materials, alkalis, alcohols, edible chemicals, etc. Transport vehicles shall be equipped with emergency treatment equipment for leakage during transportation. During transport should be protected against exposure to sunlight, rain, and high temperature. Road transport should follow the prescribed route, do not stay in residential areas and densely populated areas. During loading and unloading, care should be taken to prevent package breakage. Should be stored in a cool, dry, well-ventilated warehouse. Keep away from fire and heat source. The relative humidity was maintained below 75%. The packaging must be sealed and free from moisture. It should be stored separately from easy (possibly) combustible materials, alkalis, alcohols, etc., and mixed storage should not be avoided. The storage area shall have respective leakage emergency treatment equipment and appropriate containment materials. Fire can be suppressed by sand and dry powder, carbon dioxide fire. Water use is prohibited. Toxicity and protection: LD50 46mg/kg (mice, abdominal cavity). The maximum allowable concentration in air is 2mg/m3 (calculated as metallic tin) for inorganic compounds of tin in the United States. This product is non-flammable, strong corrosive, strong irritant, can cause human body burns. Has a strong stimulating effect on the eyes, skin, mucous membranes and respiratory tract. Inhalation may be due to laryngeal, bronchial spasm, edema, inflammation, chemical Pneumonia, pulmonary edema and death. Poisoning manifestations were burning, Cough, wheezing, laryngitis, shortness of breath, Head Pain, Nausea and Vomit. Remove contaminated clothing immediately upon skin contact. Rinse with plenty of running water for at least 15min. The patient visited hospital. Immediately lift the eyelids when the eyes are in contact and rinse thoroughly with plenty of running water or saline for at least 15min. The patient visited hospital. During inhalation, the patient was rapidly separated from the site to fresh air. Keep airway unobstructed. Such as Dyspnea, to the delivery of oxygen. If breathing stops, perform artificial respiration immediately. The patient visited hospital. After eating the application of water gargle, to drink milk or egg white, medical treatment. Should be closed operation, partial ventilation. The operators wear gas masks (full face mask), rubber acid and alkali-resistant clothing, and rubber acid and alkali-resistant gloves. Smoking, eating and drinking are prohibited at work. After completion of work, shower and dressing. The waste should be poured into sodium bicarbonate solution, sprayed with ammonia, and crushed ice should be added. After the reaction is stopped, the waste water should be washed into the wastewater system. Occupational exposure limit

Reference Information