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PRODUCTS

hongyangchem

PRODUCTS

Organic ester series

Acetate series

Composite carbon source (liquid)

Olidifying Agent for Water Glass

Molecular formula

(CH₃CO)·O(CH₂)₂O·NO·(OCCH₃)

Boiling Range

（101.3kPa）180～300℃, It has the common chemical characteristics of ester, freely hydrolyzed into alcohol and acetic acid at the existence of caustic soda and inorganic acid.

Property

Colorless or light yellow, transparent liquid, slightly soluble in water, freely soluble in alcohol, ether and other organic solvent.

Quality Index
(Q/320282NPL002)

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％

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.

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