tris-1-(2-methylaziridinyl)phosphine oxide

executive standard: united state military standard dod-t-82666a

english another name: tris(2-methylaziridinyl)phosphine oxide

english abbreviation: mapo

cas rn：57-39-6

molecular weight: 215.23

molecular formula: c₉h₁₈n₃op

1. physical and chemical properties：

1.1 appearance: colorless to yellow oil liquid.

1.2 odor: foul smell with rotten green grass.

1.3 solubility: freely dissolved in organic solvents, such as methylene dichloride, chloroform, ethyl ether, etc. slightly soluble in water.

1.4 boiling point：90-92℃,0.15-0.3mmhg.

1.5 stability: decomposing temperature is 170℃. it will be decomposed in any acid. the polymerization occurs when contacted with acidic material or impurities containing active hydrogen. the copolymerization and cross-linking can be also taken place when contacted with the compounds containing two or more than two active hydrogen.

2. technical indexes:

3. uses: mapo has been used as cross-linking agent and curing agent on the cladding layers of missile resin to heighten the capabilities of elasticity and ballistic in propellant. it works well for the application of ap-based oxidizer in htpb propellant.

4. safety instructions: toxic. operation must be installed with rubber gloves, a respirator and eye protection by wearing protective clothing to avoid contacting with skin, eyes and clothing.

5. package: wooden box with two plastic casks of 10 kg net, 20 kg net each.

6. storage: nitrogen sealed. store at cool and ventilate. forbid to heat and exposure. shelf life of 12 months, if expire, still used if up to standard through retest.

7. transportation: its dangerous goods code is 61120. avoid inversion, sunlight and crash.