| Identification | More | [Name]
Benzenesulfonyl hydrazide | [CAS]
80-17-1 | [Synonyms]
BENZENE-1-SULFONOHYDRAZIDE
BENZENESULFONIC ACID HYDRAZIDE
BENZENESULFONOHYDRAZIDE
BENZENESULFONYL HYDRAZIDE
Benzenesulfonylhydrazine
BENZENESULPHONYL HYDRAZIDE
BSH
LABOTEST-BB LT00050075
POROFOR BSH
Benzene sulphonohydrazide
Benzenesulfohydrazide
Benzenesulfonic hydrazide
benzenesulfonichydrazide
benzenesulphonohydrazide
Benzenesulphonylhydazide
Benzensulfonylhydrazine
Celogen BSH
celogenbsh
ChKhZ 9
chkhz9 | [EINECS(EC#)]
201-255-2 | [Molecular Formula]
C6H8N2O2S | [MDL Number]
MFCD00007583 | [Molecular Weight]
172.2 | [MOL File]
80-17-1.mol |
| Safety Data | Back Directory | [Hazard Codes ]
F | [Risk Statements ]
R11:Highly Flammable. | [Safety Statements ]
S15:Keep away from heat .
S16:Keep away from sources of ignition-No smoking .
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes . | [RIDADR ]
UN 3226 4.1
| [WGK Germany ]
3
| [RTECS ]
DB6888000
| [F ]
4.9-16 | [TSCA ]
Yes | [REACH Registrations]
Active | [HazardClass ]
4.1 | [PackingGroup ]
II | [HS Code ]
29350090 | [Safety Profile]
Poison by ingestion. A
flammable solid. When heated to
decomposition it emits toxic vapors of NOx
and SOx. | [Toxicity]
LDLo orl-rat: 50 mg/kg IPSTB3 3,93,76 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Benzenesulfonyl chloride-->Alkali Metals, plasma standard solution, Specpure, Ba,Be,Ca,Cs,K,Li,Mg,Na,Rb,Sr, 100μg/ml | [Preparation Products]
N-n-Butyl benzene sulfonamide-->3-(4-Bromophenyl)propionic acid-->1-PHENYL-1-PENTYNE-->5-AMINO-3-PHENYLPYRAZOLE-->4-Bromo diphenylacetylene-->3-(PHENYLSULFONYL)PROPIONIC ACID-->Benzenesulfonylazide-->4-Phenyl-2H-1,2,3-benzothiadiazine1,1-dioxide |
| Hazard Information | Back Directory | [General Description]
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. | [Reactivity Profile]
Self-decomposition or self-ignition may be triggered by heat, chemical reaction, friction or impact. May be ignited by heat, sparks or flames. | [Air & Water Reactions]
Insoluble in water. | [Description]
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]. | [Chemical Properties]
Benzenesulfonyl hydrazide is WHITE POWDER
| [Uses]
Benzenesulfonyl hydrazide is used in making foam rubber and foam plastics.
| [Production Methods]
Benzenesulfonyl hydrazides are produced by treating benzenesulfonyl chlorides with hydrazine in dioxane, alcohol, or water and in the presence of a second equivalent of hydrazineoranotherbase. They react with nitrous acid to form benzenesulfonyl azides according to the following equation:
ArSO2NHNH2 +HNO2→RSO2N3 +2H2O
| [References]
[1] Rungtawee Padakan, Surachai R. (2016). Evaluation of benzenesulfonyl hydrazide concentration on mechanical properties, swelling and thermal conductivity of thermal insulation from natural rubber. Agriculture and Natural Resources, 50 3, Pages 220-226. https://doi.org/10.1016/j.anres.2016.01.004
[2] Yoongook Park , Jun H. L. (2020). Facile separation of optically transparent adhesive films by heat-triggered gas generation of vaporizable core–shell nanocapsules embedded with benzenesulfonyl hydrazide. Journal of Industrial and Engineering Chemistry, 90, Pages 312-318. https://doi.org/10.1016/j.jiec.2020.07.029
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