RC - What is RC? - Rotterdam Convention

Its
Common name: hexachlorobutadiene
Common synonyms: 1,3-hexachlorobutadiene, 1,1,2,3,4,4-
hexachloro-1,3-butadiene, perchloro-
butadiene
Common trade names: C-46, Dolen-pur, GP40-66: 120, UN2279
Common abbreviation: HCBD
CAS registry number: 87-68-3
RTECS registry number: EJ 0700000
Relative molecular mass: 260.8
2.2 Physical and chemical properties
Hexachlorobutadiene is a non-flammable, incombustible, clear,
colourless and oily liquid at ordinary temperature and pressure.
odour is described as turpentine-like. The odour threshold for the
compound in air is reported to be 12 mg/m 3 (Ruth, 1986). In water
an odour threshold of 0.006 mg/litre has been reported (US EPA,
1980). The compound is poorly soluble in water but is miscible with
ether and ethanol.
Hexachlorobutadiene is very stable to acid and alkali in the
absence of an appropriate solvent and has no tendency to polymerize
even under high pressure. It reacts with chlorine under severe
reaction conditions, often with cleavage of the carbon skeleton
(Ullmann, 1986).
Some physical and chemical data on hexachlorobutadiene are
presented in Table 1.
Table 1. Some physical and chemical properties of
hexachlorobutadiene a
Physical state liquid
Colour clear, colourless
Melting point -18 °C