Benzolsulfons?ure-hydrazid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R11:Leichtentzündlich.
S-S?tze Betriebsanweisung:
S15:Vor Hitze schützen.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
Benzenesulphonyl hydrazide (BSH) is a chemical blowing agent used to modify the cell structure of natural rubber. The decomposition temperature of BSH blowing agent is 105 °C, and its gas release rate is 120 cm
3/g. In the preparation of natural rubber thermal insulation materials, the BSH blowing agent decomposes upon heating to produce nitrogen gas, thereby forming a foam structure within the rubber. When the BSH content is 6 phr, the maximum swelling ratio reaches 324% and the thermal conductivity reaches a minimum of 0.040 W/m/K, making the material an excellent thermal insulation material [1]. Furthermore, BSH is also used as the core material in evaporable core-shell nanocapsules to enable thermally triggered separation of thin films [2].
Chemische Eigenschaften
Benzenesulfonohydrazides,unlike the benzenesulfonamides, are thermally unstable. They decompose, when heated in water in some cases, to form sulfides, thiosulfonates, and nitrogen; for this reason they are used as blowing agents in the production of foams.
Chemische Eigenschaften
Benzenesulfonyl hydrazide is WHITE POWDER
Verwenden
Benzenesulfonyl hydrazide is used in making foam rubber and foam plastics.
Allgemeine Beschreibung
Benzenesulfonyl hydrazide is a white to light-colored crystalline solid. Insoluble in water and denser than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Readily ignited by sparks or flames and burns vigorously. Used to make other chemicals.
Air & Water Reaktionen
Insoluble in water.
Reaktivit?t anzeigen
Self-decomposition or self-ignition may be triggered by heat, chemical reaction, friction or impact. May be ignited by heat, sparks or flames.
Sicherheitsprofil
Poison by ingestion. A
flammable solid. When heated to
decomposition it emits toxic vapors of NOx
and SOx.
Benzolsulfons?ure-hydrazid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Benzolsulfons?urechlorid
Alkali Metals, plasma standard solution, Specpure, Ba,Be,Ca,Cs,K,Li,Mg,Na,Rb,Sr, 100μg/ml
Downstream Produkte
