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Shaanxi XuTai Technology Co., Ltd. Add: Floor 10,CITIC building,No.89 
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Hydropropyl methyl cellulose (HPMC)
1. Product Introduction:

Generic name
Hydroxypropyl methyl cellulose
Abbreviations
HPMC
CAS NO.
9004-65-3
Conform to the standards
Enterprise standard
Chemical formula

2. Technical specifications
 
C6H7O2 OH x OCH3 y OCH2CHOHCH3 zn
INDEX
Hydroxypropyl content  %
7.0鈥12.0
4.0-8.5
4.0-12.0
Methoxyl content        %
28.0-32.0
27.0-32.0
19.0-24.0
Moisture              % 
鈮5.0
Ash content            %
鈮5.0
Viscosity        (mpa.s)
 2.4---250,000
鈮70
Whiteness         %
鈮75
Bulk density       g /l
 370---420
Appearance
white or off-white fibrous or granular  powder: odorless, tasteless銆
 
3. Product Application

In building materials as cement slurry water retention agent, retarder enable mortar with pumping. In the plastering gypsum material, putty powder, or other materials as adhesive, improve spreadability and prolong operation time. Used as a paste ceramic tile, marble, decorative plastic, paste enhancer, also can reduce the dosage of cement. HPMC water retention properties make slurry in paint will not dry too fast and cracking, enhance the strength after hardening.
In addition, in other petrochemical, paint, building materials, paint remover, agricultural chemicals, ink , textile printing and dyeing, ceramics, paper, cosmetics and other products production as thickener, stabilizer, emulsifier, excipients, water-retaining agent, film forming agent.
 
4. Physical and chemical performance.
 
1). The appearance: white or white powder, odorless and tasteless.
2). Particle size: 100 order by the rate of more than 98.5%; 80 mesh through rate in 100%.
3). The carbonization temperature: 280-300鈩.
4). The apparent density:0.25-0.70g/ (usually 0.5g/). Specific gravity 1.26-1.31.
5). Temperature: 190-200鈩
6). Spontaneous combustion temperature of about 360鈩.
7). The surface tension of aqueous solution of 42-56dyn/cm:20%.
8). HPMC with methoxyl content decreases, the gel point elevation, dissolved in water decline, surface activity also decreased.
9).The solubility: soluble in water and organic solvents, such as an appropriate proportion of ethanol/water, isopropanol/water, two chlorine ethane and. Aqueous solution with surfactant, high transparency, stable performance. Products of different specifications in different gel temperalures, this is HPMC thermal gelation properties. The solubility increases with the viscosity and viscosity change, the lower the solubility, higher, different specifications of the HPMC properties have some differences. HPMC solubility in water is not affected by Ph value influence.
 
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