Then, on 20 June, the Germans for the first time employed a new type of diphosgene gas shell.

Other Green Cross mixtures were based on phosgene and/or diphosgene.

The British used a range of poison gases, originally chlorine and later phosgene, diphosgene and mustard gas.

Stolzenberg established a chemical incineration facility and a site to convert chlorine gas and diphosgene.

By then both sides had mastered the techniques of new choking agents such as diphosgene, chloropicrin, and perfluoroisobutene which allowed numerous attacks to be made.

The immediate effect of phosgene and diphosgene is less noticeable, but the lungs slowly fill with fluids and the victim suffocates within a few days.

Between 1921 and 1927, the Spanish army indiscriminately used phosgene, diphosgene, chloropicrin and mustard gas (known as Iperita).

Phosgene (or a synthon or precursor such as diphosgene) can be used in combination with formamide to yield isocyanides.

On 22 June, German assault troops dispensed over 116,000 shells of diphosgene gas into the entrenched French artillery positions, where Marcel Dupont was located.

Between 15,000 and 20,000 of the newly introduced Yellow Cross shells containing the blistering agent sulfur mustard were fired in addition to an undetermined number of shells containing diphosgene.

With α-amino acids diphosgene gives the acid chloride-isocyanates, OCNCHRCOCl, or N-carboxy-amino acid anhydrides depending on the conditions.

To prepare for the assault on Souville, the Germans, beginning on 10 July, attempted to incapacitate French artillery with over 60,000 diphosgene gas shells (the so-called "Green Cross Gas").

Diphosgene has a relatively high vapor pressure of 10 mm Hg (1.3 kPa) at 20 C and decomposes to phosgene around 300 C. Exposure to diphosgene is similar in hazard to phosgene and the MSDS should be consulted.