Olidifying Agent for Water Glass |
Property: |
Colorless or light yellow, transparent liquid, slightly soluble in water, freely soluble in alcohol, ether and other organic solvent.
Molecular Formula:(CH3CO)·O(CH2)2O·NO·(OCCH3)
Boiling Range:(101.3kPa)180-300ºC,
It has the common chemical characteristics of ester, freely hydrolyzed into alcohol and acetic acid at the existence of caustic soda and inorganic acid. |
Quality Index Q/320282NPL: |
Items |
Industrial Grades |
Ester Content% |
≥ 98% |
Free Acid% |
≤0.5 |
Appearance |
Colorless or slight yellow |
Moisture Content % |
≤0.2 |
|
Uses and Characteristics: |
It is YS-series and jointly developed with Shanghai Reagent General Company in 1994. Applicable to casting manufacturer with three varieties. It has good self-hardening property without toxicity and harm. It has been proved that this product has the advantages of good casting size accuracy, low residue of processing, good diffusibility, low gas-emitting volume, low manufacture consumption etc. |
Solidifying Mechanism: |
The solidification of this product is realized through the mixing of organic ester and water glass. The sand-type, pressure-resistant strength of ester-solidified water glass is 1.5-3 Mpa. |
Product Types and Technical Indexes: |
Type |
Solidifying Speed |
Applicable Temperature ºC |
General Ratio |
MDT800 |
Very Slow |
35 |
Raw Sand %;Water Glass 2.4-4.0%,Solidifying Agent 0.25-0.4%, Modulus of Water Glass 2.2-2.5 |
MDT901 |
Moderate Speed |
25 |
MDT903 |
Quick |
5 |
|
The Regulation of Solidifying Speed: |
Solidifying Speed |
Quickest |
Very Quick |
Quick |
A Little Quicker Than Moderate Speed |
Moderate Speed |
A Little Slower Than Moderate Speed |
Slow |
Very Slow |
Applicable Temperature ºC |
0 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
800 |
- |
- |
- |
- |
- |
- |
80% |
40% |
901 |
|
|
30% |
50% |
80% |
100% |
80% |
60% |
903 |
90% |
100% |
70% |
50% |
20% |
- |
- |
- |
K |
10% |
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Transportation and Storage: |
This product is easily hydrolyzed. It should be hermetically sealed and avoid water. Fire should be insulated from this product in transportation and storage. It should be stored at cool, dry places, avoiding heat, moisture, direct sunlight and rain. |
