Authored by NINGBO INNO PHARMCHEM CO.,LTD.

Mono-N-Butyltinoxide, commonly known by its acronym MBTO, or under synonyms such as N-Butylstannoic Acid or Butyltin(IV) Hydroxide Oxide, is a distinguished organotin compound with the Chemical Abstracts Service (CAS) number 2273-43-0. It presents itself typically as a white powder, a physical form that contributes positively to its handling and storage characteristics within various industrial settings. MBTO holds a significant position in the chemical industry, primarily recognized for its remarkable efficiency and versatility as a catalyst.

The molecular formula for Mono-N-Butyltinoxide is C4H10O2Sn, resulting in a molecular weight of approximately 208.83 g/mol. Its chemical structure incorporates a butyl group attached to a tin atom, which is further bonded to oxygen and hydroxyl functionalities. This specific arrangement is key to its chemical reactivity and its efficacy in promoting certain types of reactions. As a chemical entity, MBTO is listed under EINECS number 218-880-1.

One of the most crucial aspects of MBTO is its application as a catalyst. It is particularly valued for its catalytic activity in condensation reactions, most notably esterification and transesterification processes. These reactions are fundamental in the production of a wide array of materials that are indispensable to modern life. For instance, MBTO is extensively used in the synthesis of polyesters, including saturated and unsaturated resins. These polymers find applications in everything from coatings and adhesives to composite materials used in construction, automotive, and aerospace industries.

Beyond polyesters, MBTO acts as a potent catalyst in the manufacture of alkyd resins, which are primary components in many paints and varnishes, providing durability and gloss. Its catalytic role extends to the production of plasticizers, compounds added to plastics to increase their flexibility and workability. The efficiency of MBTO in facilitating these reactions often translates to faster reaction rates, lower reaction temperatures, and higher yields compared to some other catalysts, making it a preferred choice in many industrial syntheses. Its activity profile allows for tailored reaction conditions, contributing to process optimization and energy efficiency.

The chemical properties of Mono-N-Butyltinoxide include a reported boiling point around 350 °C (though decomposition may occur at lower temperatures under certain conditions) and a density of approximately 1.46 g/cm³. These physical characteristics are important for process design and handling protocols. A typical specification for MBTO powder highlights its tin content, often specified as Tin 55% min. This percentage reflects the active catalytic element within the compound and is a key indicator of its quality and potential catalytic performance. The white powder appearance suggests a level of purity and consistency important for reliable industrial application.

While highly effective, handling Mono-N-Butyltinoxide requires adherence to standard chemical safety protocols. Organotin compounds, in general, necessitate careful management due to potential health and environmental considerations. Based on general chemical safety classifications for such compounds, MBTO may be classified with hazard codes like Xi (Irritant) and associated risk statements (e.g., R36/37/38 indicating irritation to eyes, respiratory system, and skin), along with corresponding safety statements (e.g., S37/39-26 related to wearing suitable gloves/eye protection and seeking medical advice in case of contact). Proper ventilation, personal protective equipment, and safe handling procedures are essential to mitigate risks during its use.

The versatility of MBTO as a catalyst for various condensation and esterification reactions makes it a staple in chemical manufacturing. Its ability to promote selective reactions with good yields under manageable conditions ensures its continued demand across multiple sectors. As industries strive for greater efficiency and sustainability, the role of effective catalysts like MBTO becomes increasingly important in reducing energy consumption and minimizing side product formation.

For industrial partners and researchers seeking this essential chemical, understanding the market and supply chain is crucial. Prospective users looking to buy Mono-N-Butyltinoxide (MBTO) or purchase MBTO should consider various factors beyond just the chemical specifications. It is essential to source this chemical from a reputable MBTO supplier or MBTO manufacturer who can provide consistent quality, reliable supply, and necessary technical support and safety data. Inquiring about the current Mono-N-Butyltinoxide price is a critical step in procurement planning, and pricing can vary based on purity, quantity, packaging, and market conditions. Establishing a relationship with a knowledgeable MBTO supplier ensures access to detailed product information and logistical expertise. Choosing a reliable MBTO manufacturer or supplier is paramount for maintaining the integrity and efficiency of downstream processes that rely on this important catalyst.

In conclusion, Mono-N-Butyltinoxide (CAS 2273-43-0) is a vital white powder organotin compound, serving primarily as an effective catalyst for key reactions in polymer and resin production. Its specific chemical structure and properties enable its widespread application in creating essential materials for diverse industries, solidifying its importance in the global chemical market.