At 8:30 on May 5th, at a construction site in Wanguanzhuang Town, Qinghe County, a worker accidentally crashed into a 30-meter-deep well and was in critical condition. At any time, his life may be in danger.
After the Qinghe County Fire Squadron received the police, it quickly rushed to the scene. At a construction site near the village substation in front of Wangguanzhuang Town in the county, a worker accidentally crashed into the well during construction near the well. The fire officers and soldiers surveyed the site and discovered that the diameter of the well borehole is about 60 cm and the depth is 30 meters. The surface of the water is about 10 meters away from the wellhead. The well-behind workers are already below the surface of the water.
According to the site, since the wellhead can accommodate adults, then the fire brigade rescue tripod fixed, let a firefighter wearing breathing apparatus, portable safety harness, safety ropes, tie rods and other high-voltage equipment, slide down to the pit, and fall well Workers salvage and fix the body, and other firefighters assist in the rescue.
One hour later, the fire officers and men successfully rescued the falling well and were sent to the hospital by medical personnel.
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Chemical formula: |
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Molecular weight: |
172.09 |
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Standard executed: |
GB/T 28159-2011 GB3149-2004/FCC GB/T 2091-2008 |
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Properties: |
Under normal temperature, Phosphoric acid is a colorless transparent viscous liquid, with a melting point of 21.1℃ and a boiling point of 158 ℃. As a tribasic acid with moderate acidity, it has all the common characteristics of an acid, including strong metal corrosion properties. |
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Usage: |
1.Phosphoric acid Electronic Grade is widely used in the semiconductor industry in ultra large scale integrated circuits, electronic chips, liquid crystal display films and cleaning and etching of said products. It is also used in the preparation processes of high purity special phosphates and high purity organic phosphorus products. 2.Phosphoric Acid Food Grade is used as a clarifier in food and beverage industries, as an acid additive or a yeast nutrient, and in the production of food grade phosphates. 3.Mainly used as a metal surface treatment agent, as the phosphate in raw material products, as an organic reaction catalyst in the sugar industry and as a refractory additive or a activated carbon treatment agent in the compound fertilizer industry. |
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Packaging and storage: |
Electronic Grade:Packaged in 200L HDPE drums(330Kg / drum), IBC ton barrels (1700 Kg /drum), or the ISO lorry lined in 316L stainless steel. Food grade:1000L IBC (1700KG/tank,IBC),200L drum (330KG/drum),25L drum(35KG/drum) and ISO-TANK. Store in a cool, dry, well-ventilated area away from toxic and hazardous Tech grade:1000L tank(1700KG/tank, IBC);200L plastic drum (330KG/drum);25L plastic drum(35KG/drum) and ISO-TANK. |
Phosphoric Acid CAS NO.7664-38-2
wc-reiniger,EVITs,H3PO4,PHOS ACID,MFCD00011340,Phosphoric,Marphos,Phosphorous acid,U.N. 1805,( 1527873,R)-VAPOL phosphoric acid,VAPOL hydrogenphosphate
Jinan Forever Chemical Co., Ltd. , https://www.jinanforever.com