Agent Name

HT

CAS Number

172672-28-5

Formula

C8-H16-Cl2-O-S2.C4-H8-Cl2-S

Major Category

Toxic Gases & Vapors

Synonyms

Ethane, 1,1'-thiobis(2-chloro-, mixed with 1,1'-oxybis(2- ((2-chloroethyl)thio)ethane; Sulfur mustard agent HT; [ChemIDplus]

Category

Chemical Weapons

Description

Odorless white to yellowish or grayish powder. [CAMEO]

Sources/Uses

Chemical warfare agent. [ChemIDplus]

Comments

Sulfur mustard freezes at 57 degrees F. It is often mixed with a substance to lower its freezing point to make it easier to disperse. The mixture is referred to as "HT." HT is also used to refer to mustard containing small amounts of newer thickening agents. [USAMRICD] See "Bis(2-chloroethyl)sulfide."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

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