| Identification | Back Directory | [Name]
Benzenesulfonyl semicarbazide | [CAS]
10195-68-3 | [Synonyms]
Benzenesulfonyl semicarbazide
Benzene Sulphonyl Semicarbazide
1-(Phenylsulfonyl)semicarbazide
Benzenesulfonyl semicarbazide (BSS)
2-(Phenylsulfonyl)hydrazinecarboxamide
Benzenesulfonic acid, 2-(aminocarbonyl)hydrazide | [EINECS(EC#)]
233-857-6 | [Molecular Formula]
C7H9N3O3S | [MDL Number]
MFCD01305841 | [MOL File]
10195-68-3.mol | [Molecular Weight]
215.23 |
| Chemical Properties | Back Directory | [Melting point ]
220-222 °C(Solv: ethanol (64-17-5)) | [density ]
1.438±0.06 g/cm3(Predicted) | [storage temp. ]
2-8°C | [pka]
8.83±0.43(Predicted) |
| Hazard Information | Back Directory | [Chemical Properties]
Benzenesulphonyl semicarbazide is a white powder that is soluble in DMSO, concentrated ammonia solution and liquid alkalis. It is insoluble in acetone, halogenated hydrocarbons, alcohols, petroleum ether, toluene and water. Its foaming capacity is approximately 140–150 ml/g, which is twice that of AC blowing agents. The gases released are primarily nitrogen and carbon dioxide (2:1). This substance has a high decomposition temperature and good stability. Its decomposition temperature in air is 220 °C, and in plastics it is 210–220 °C. The solid residues after decomposition are mainly diphenyl disulphide and ammonium benzenesulphonate. | [Uses]
Benzenesulphonyl semicarbazide (BSS) is a high-temperature blowing agent with properties similar to those of RA blowing agents. It is particularly suitable for plastics processed at high temperatures, serving as a foaming agent for synthetic rubbers such as rigid polyvinyl chloride (PVC), high-density polyethylene (HDPE), polypropylene (PP), polycarbonate (PC), nylon, ABS, natural rubber and styrene-butadiene rubber (SBR). Furthermore, it can also be used as a benzenesulphonyl hydrazide additive in lithium-ion batteries. This substance improves the distribution of the binder within the cathode film, ensuring it is fully distributed around the cathode active material. This further reduces friction between the cathode active materials whilst ensuring the stability of the cathode film, thereby mitigating issues such as brittle fracture of the cathode electrode and reduced cycle performance caused by the fragmentation of the cathode active material. Furthermore, appropriately reducing the content of benzosulphonylhydrazine additives also helps to improve the energy density of the battery. |
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