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Triple Pressed Stearic Acid Price

Basic Info

Model No.:  industrial grade

Product Description

  • Model NO.: industrial grade
  • Alkyl No.: Unsaturated Acid
  • Source: Hydrolysis
  • Form: Pearl
  • Einecs No.: 200-313-4
  • grade: industrial grade
  • Mf: C18h36o2
  • packing: 25kg/bag
  • Transport Package: 25kg/bag
  • Origin: China
  • Carboxyl No.: Dicarboxylic Acid
  • Appearance: Granule
  • Colour: White
  • Color: White
  • exporting: global
  • sample: free
  • CAS No.: 57-11-4
  • Trademark: xxxxxx
  • Specification: industrial grade
  • HS Code: 1901100090
1. Properties
pure product is white with a shiny soft small pieces,melting point 69.6ºC,the boiling point of 376.1degrees.
Relative density 0.9408,refractive index 1.4299,slowly volatile in the 90-100 degrees.Slightly soluble in cold water,soluble in alcohol,acetone,soluble in benzene,chloroform,ethyl ether,carbon tetrachloride,carbon disulfide,and so on.

2. Description
Stearic acid is obtained from fats and oils by the saponification of the triglycerides using hot water (above 200°C). The resulting mixture is then distilled.[3] Commercial stearic acid is often a mixture of stearic and palmitic acids, although purified stearic acid is available.Fats and oils rich in stearic acid are more abundant in animal fat (up to 30%) than in vegetable fat (typically <5%).The important exceptions are cocoa butter and shea butter,where the stearic acid content (as a triglyceride) is 28-45%.[10]In terms of its biosynthesis, stearic acid is produced from carbohydrates via the fatty acid synthesis machinery wherein acetyl-CoA contributes two-carbon building blocks.
Item stearic acid
Product Character Milk White Granular
Acid Value mg KOH/g 207 min
Saponification Value mg KOH/g 208 min
Iodine Value gI2/100g 2 max
Titre ºC 52 min
Colour APHA 100 max
Moisture % 0.3 max
Mineral Acid % 0.001 max

3. Process
It is prepared by treating animal fat with water at a high pressure and temperature.It can also be obtained from the hydrogenation of vegetable oils.Common stearic acid is actually a mix of stearic acid and palmitic acid,although purified stearic acid is available separately.

4. Function
As an important chemical raw material and additive,
a). Stearic acid is useful as an ingredient in making candles,soaps,and cosmestics and for softening rubber.
b). Stearic acid is also widely used in rubber,lastics,PVC stabilizer,osmetics,harmaceuticals,hemical auxilary agent industries etc.

5. Application
In general,the applications of stearic acid exploit its bifunctional character,with a polar head group that can be attached to metal cations and a nonpolar chain that confers solubility in organic solvents.The
combination lead to uses as a surfactant and softening agent.Stearic acid undergoes the typicalreactions
of saturated carboxylic acids,a notable one being reduction to stearyl alcohol,and esterification with a range of alcohols.This is used in a large range of manufactures,from simple to complex electronic devices.
1). Food industry:As raw material of lubricant, defoamer, food additives.
2). Cosmetics:Used to prepare cream, cold cream, foundation cream, shaving cream,etc.
3). Plastic processing: As plasticizer,lubricant,antistatic agent,antifogging agent,anti-aging agent and foaming agent used in PVC, PP, PE, etc..
4). Textile:As lubricant used in yarn,softening agent in mercerizing paste and waterproofing agent in textile.
5). Other area:Used to prepare polishing paste,metal flotation agent,paint smoothing agent,stencil polishing agent,etc.

5. Specification sheet
Iterms Index
Grade SA1842 SA1838 SA1820 SA1860 rubber grade
Appearance White fine bead White fine bead White fine bead White fine bead
Iodine value(gI2/100g)≤ 0.25 0.22 0.15 1.7
Sapon value (mgKOH/g) 209-211 211-212.5 214-216 193-220
Acid value (mgKOH/g) 208-210 210-211.5 213-215 192-218
Color(hazen)≤ 55 65 50 250
Titer,ºC 55.5 55.5 56 55.7
Moisture %≤ 0.08 0.08 0.08 0.05
Inorganic %≤ 0.001 0.001 0.001 0.001
C18, % 43 37 17.743 57.7
C16,% 56 61 79.1575 38.42
C14,% 0.5 1.4 2.4257 0.82
C12,% 0 0.1 0.2295 0.93
C20,% 0.5 0.5 0.0431 1.55
Items Grades
ITEM HS-SA-1801 HS-SA-1838 HS-SA-1865
Iodine g/100g <= 0.6 0.56 0.45
Soap Value mg/g 206-211 203-214 193-220
Acid Value mg/g 205-210 202-212 192-218
Color  (Hazen) <= 200 400 800
Freezing Point 54-57 >=54 >=52
Water content % <= 0.20 0.20 0.20
Inorganic acid %<= 0.001 0.001 0.001
Analyzing items Standard Result Method
Product Character Milk White Granular Complies AOCS Te la -64 (09)
Acid Value mg KOH/g 207 min 212.43 AOCS Te la -64 (09)
Saponification Value mg KOH/g 208 min 213.57 AOCS Tl la -64 (09)
Iodine Value gI2/100g 2 max 0.13 AOCS Tg la -64 (09)
Titre ºC 52 min 57.2 AOCS Tr la -64 (09)
Colour APHA 100 max 10 AOCS Td la -64 (09)
Moisture % 0.3 max 0.1 AOCS Tb la -64 (09)
Mineral Acid % 0.001 max <0.001 GB/T 9104-2008
Terms specification 
Grade triple pressed(200) double pressed(400) single pressed(800)
Appearance white flake, granular white flake, granular  white flake, granular
Iodine value  2.0max 4.0max  8.0max 
Sapon value 206-211  203- 214 193-220 
Acid value 205-210  202-212 192-218 
Hazen  200max 400max  800max 
Titer, °c  54-57 54min  52min 
Moisture,% 0.2max  0.2max  0.3max 
Inorganic,% 0.001max 0.001max 0.001max

6. FAQ
Q: Can we replace the package?
A: Of course. The package can be custom-made. You can provide the pattern or we design for you.
Q: What's the date of delivery?
A: The delivery time is changeable.
In stock, the delivery time is short. Products can be sent out in 5 working days.
For large quantity, the delivery date is under requirements of contract.
Q: How to deal with specification differences?
A: Please contact us for help. We will communicate with technicians to see if there's a possibility to 
OEM for you.
Q: How long will I get replies?
A: Due to time difference and holidays,we will try our best to reply you in 24 working hours.If there is 
anything we can do






 

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