Malononitrile


Malononitrile, also propanedinitrile or malonodinitrile, is a nitrile with the formula CH2(CN)2. Malononitrile is relatively acidic, with a pKa of 11 in water. This allows it to be used in the Knoevenagel condensation, for example in the preparation of CS gas: In related chemistry, malononitrile is a suitable starting material for the Gewald reaction, where the nitrile condenses with a ketone or aldehyde in the presence of elemental sulfur and a base to produce a 2-aminothiophene. Wikipedia

Substance Data

Source: TOXNET (HSDB, 23.01.2019)

CAS-Number

109-77-3

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 153

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

6.1
Poisonous Material

(4) Identification number Help

UN 2647

(5) Packing Group Help

II

(6) Labels Help

Poisonous liquids PG I Zone A (6.1)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
IB8
IP2
IP4
T3
TP33

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions153see 49 CFR §173.153
(8B) Non-bulk212see 49 CFR §173.212
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail25 kg
(9B) Cargo aircraft only100 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.

There are no restrictions with hazardous materials, as pointed out in the instructions for using the Segregation Table (see 49 CFR §177.848(e)). But please, refer to following requirements in 49 CFR §177 Subpart B (Loading and Unloading):
  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials.
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles.