Benzenesulfonyl hydrazide , 98% , 80-17-1
Synonym(s):
Benzenesulfonylhydrazine;BSH;Porofor BSH
CAS NO.：80-17-1
Empirical Formula: C6H8N2O2S
Molecular Weight: 172.2
MDL number: MFCD00007583
EINECS: 201-255-2
PRODUCT Properties
| Melting point: | 101-103 °C(lit.) |
| Boiling point: | 333.5±25.0 °C(Predicted) |
| Density | 1.303 (estimate) |
| refractive index | 1.6490 (estimate) |
| Flash point: | 110 °C |
| storage temp. | Flammables area |
| solubility | soluble in Methanol |
| pka | 9.30±0.50(Predicted) |
| form | solid |
| color | White to Almost white |
| Merck | 14,7598 |
| BRN | 640079 |
| InChIKey | VJRITMATACIYAF-UHFFFAOYSA-N |
| CAS DataBase Reference | 80-17-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzenesulfonic acid, hydrazide(80-17-1) |
| EPA Substance Registry System | Benzenesulfonic acid, hydrazide (80-17-1) |
Description and Uses
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 cm3/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].
Benzenesulfonyl hydrazide is used in making foam rubber and foam plastics.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H302-H242 |
| Precautionary statements | P501-P270-P220-P210-P234-P264-P280-P370+P378-P301+P312+P330-P411-P420-P403+P235 |
| Hazard Codes | F |
| Risk Statements | 11 |
| Safety Statements | 15-16-22-24/25 |
| RIDADR | UN 3226 4.1 |
| WGK Germany | 3 |
| RTECS | DB6888000 |
| F | 4.9-16 |
| TSCA | TSCA listed |
| HazardClass | 4.1 |
| PackingGroup | II |
| HS Code | 29350090 |
| Toxicity | LDLo orl-rat: 50 mg/kg IPSTB3 3,93,76 |
| REACH Registrations | Active |
| Limited Quantities | 1.0 Kg (2.2 lbs) |
| Excepted Quantities | Not Permitted as Excepted Quantity |
