Raystown Roof Cleaning Central PA 1-800-236-0322 wrote:
Yes Chris,..I noticed that as well.
Jeff
Then how could the bleach powder be a mistake ? Perhaps they were thinking a finer grind will help water solubility issues ?
Effect of superfine grinding on properties of ginger powder
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Xiaoyan Zhaoa, Zaibin Yangb, Guosheng Gaia, , and Yufeng Yanga
aDepartment of Material Science and Engineering, Tsinghua University, Room 2713, Yifu Building, Beijing 100084, China
bCollege Animal Science and Technology, Shandong Agriculture University, Shandong 271018, China
Received 2 July 2008;
revised 18 August 2008;
accepted 25 August 2008.
Available online 5 September 2008.
Abstract
The superfine grinding could produce a narrow and uniform particle size distribution in dry ginger. The physical–chemical properties of five types of ginger powders with particles size of 300, 149, 74, 37 and 8.34 μm were investigated. The size was smaller for ginger powders, greater for the surface area (from 0.331 to 1.320 m2/g) and bulk density (from 0.3069 to 0.3426 g/ml) and smaller for the angle of repose (from 51.50° to 46.33°) and slide (from 45.80° to 39.50°). The values of water absorption index (WAI), water solubility index (WSI) and protein content significantly increased with decreasing the size of ginger particles (p < 0.05). Interestingly, the values of WAI, WSI and protein content of ginger powder with a particle size of 8.34 μm during soaking reached 0.52 g/g, 33.70% and 84.93% for 60 min, respectively. SEM observations revealed the shape and surface morphology of five types of ginger powders.
Maybe Chris,..I think calcium is gonna be tough to dissolve no matter how fine it's ground,..especally in the concentrations needed to make a relatively potent roof mix,..I think that is alot of the problem,..so much is needed to make roof strength that the calcium just adds up in such a small amount of water.
Even if it all dissolves,..it's the properties of the CH that is the issue.
CH is just out of place for practical roof cleaning,..especially when there's SH readily available.
Even if their "special" blend of chemicals was off,..I would still think the MSDS would have been correct. So,..it is still just pool shock it would seem.
Jeff
-- Edited by Raystown Roof Cleaning Central PA 1-800-236-0322 on Wednesday 13th of April 2011 10:46:23 AM
-- Edited by Raystown Roof Cleaning Central PA 1-800-236-0322 on Wednesday 13th of April 2011 10:48:30 AM
Raystown Roof Cleaning Central PA 1-800-236-0322 wrote:
Maybe Chris,..I think calcium is gonna be tough to dissolve no matter how fine it's ground,..especally in the concentrations needed to make a relatively potent roof mix,..I think that is alot of the problem,..so much is needed to make roof strength that the calcium just adds up in such a small amount of water.
Even if it all dissolves,..it's the properties of the CH that is the issue.
CH is just out of place for practical roof cleaning,..especially when there's SH readily available.
Even if their "special" blend of chemicals was off,..I would still think the MSDS would have been correct. So,..it is still just pool shock it would seem.
Jeff
The problem is not so much the water solubility, it is what happens when the stuff dries/comes out of solution. You strained the shit, remember ? It still left a film.