Synthesis and characteristic analysis of coal dust explosion suppressant based on surface modification of ammonium dihydrogen phosphate with methyl hydrogen-containing silicone oil

Selecting ammonium dihydrogen phosphate of ultra-fine processing and surface modification as the main agent of fire extinguishing agent, mica powder, activated clay, talc, calcium carbonate as an inert filler, ND1 as additive, developed specifically for the grassland fire characteristics of ultra-fine dry powder fire extinguishing agent grassland; tested the moisture absorption rate, water repellency, bulk density and fluidity and other technical indicators; using quadrat grassed ignition method on new grassland fire extinguishing agent research the fire extinguishing efficiency and cost.

Download Full-text

Growth, SXRD, optical and dielectric studies on inorganic ammonium sulphate doped ammonium dihydrogen phosphate (ASADP) single crystals

International Journal of Science Technology and Humanities ◽

10.26524/ijsth30 ◽

2015 ◽

Vol 2 (1) ◽

pp. 41-44

Author(s):

Arivuselvi R ◽

Ruban Kumar A

Keyword(s):

Single Crystals ◽

Ammonium Sulphate ◽

Dihydrogen Phosphate ◽

Ammonium Dihydrogen Phosphate ◽

Dielectric Studies

Download Full-text

Preparation and performance of novel APP/NaY–Fe suppressant for coal dust explosion

Journal of Loss Prevention in the Process Industries ◽

10.1016/j.jlp.2020.104374 ◽

2021 ◽

Vol 69 ◽

pp. 104374

Author(s):

Qingxi Wei ◽

Yansong Zhang ◽

Kun Chen ◽

Bo Liu ◽

Xiangbao Meng ◽

...

Keyword(s):

Coal Dust ◽

Dust Explosion ◽

And Performance

Download Full-text

Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse

MATEC Web of Conferences ◽

10.1051/matecconf/20167706014 ◽

2016 ◽

Vol 77 ◽

pp. 06014

Author(s):

Latana Chanthaphasouk ◽

Kreangkrai Maneeintr ◽

Pinyo Meechumna ◽

Suteera Luengwattanapong ◽

Chantamanee Poonjarernsilp

Keyword(s):

Risk Factors ◽

Coal Dust ◽

Dust Explosion

Download Full-text

The Effect of Phosphatic Composite on Magnesium Phosphate Cement Performance

Materials Science Forum ◽

10.4028/www.scientific.net/msf.809-810.477 ◽

2014 ◽

Vol 809-810 ◽

pp. 477-484

Author(s):

Zhao Qing Qi ◽

Hong Tao Wang ◽

Jun Liang Dang ◽

Shi Hao Zhang ◽

Jian Hua Ding

Keyword(s):

Setting Time ◽

Potassium Dihydrogen Phosphate ◽

Magnesium Phosphate ◽

Dihydrogen Phosphate ◽

Ammonium Dihydrogen Phosphate ◽

Hydrogen Phosphate ◽

Sodium Dihydrogen Phosphate ◽

Disodium Hydrogen Phosphate ◽

Potassium Dihydrogen ◽

Sodium Dihydrogen

The capacity of 10%, 30%, and 50% ammonium dihydrogen phosphate were replaced with an equal amount of three phosphate (potassium dihydrogen phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate) respectively. Magnesium phosphate cement was made by phosphate of replaced, which strength, setting time, fluidity, hydration temperature, and the hydration products was researched. The results show that: MPC was made that replaced with the equal amount of three kind of phosphate, which has good mechanical properties. Setting time and fluidity change along with the replacment. Three kind of phosphate replace ammonium dihydrogen phosphate, which change the hydration process of MPC. When ammonium dihydrogen phosphate was replaced by an equal amount of disodium hydrogen phosphate, the temperature of hydration is only 69.4 °C. XRD showed that the diffraction peaks of composite’s magnesium phosphate cement increases.

Download Full-text

Growth and Characterization of Ammonium Dihydrogen Phosphate (ADP) Doped with H3BO3 Crystals Grown by Slow Evaporation Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.675-676.573 ◽

2016 ◽

Vol 675-676 ◽

pp. 573-576 ◽

Cited By ~ 1

Author(s):

Pratya Thongpanit ◽

Weerapong Chewpraditkul ◽

Nakarin Pattanaboonmee

Keyword(s):

Boric Acid ◽

Temperature Stability ◽

Hardness Measurement ◽

Dihydrogen Phosphate ◽

Ammonium Dihydrogen Phosphate ◽

Slow Evaporation ◽

X Ray Diffraction ◽

X Ray ◽

Evaporation Method

Ammonium dihydrogen phosphate (ADP) crystals is very interesting due to its nonlinear optical property. This study investigated on improving of material for academic use by adding boric acid to modify ADP crystals. Slow evaporation method in aqueous solutions of pure ADP and ADP doped with three concentrations of H3BO3 as 0.1, 1.0, 5.0 %wt were studied. The grown crystals were confirmed tetragonal structure by powder X-ray diffraction studies. The FTIR spectrum analysis presented various functional groups of boron in three conditions of doped ADP. TGA study was comfirned the temperature stability at 220 °C for both pure and doped ADP crytals. The machanical stress was analyzed by Vicker’s hardness measurement. The results of this analysis showed boric acid doped 1.0 %wt had superior machanical stress from 10 to 75 grams. ADP doped with boric acid at 1.0 %wt was accepted in all test properties.

Download Full-text