High Polymers

Sodium acetate trihydrate is supplied as crystals and is very soluble in water.

COMMERCIAL INFORMATION
Grades
Sodium acetate trihydrate is available in FCC, Technical or pharmaceutical grades.

Specification
Grade?? ??????????????????????????????????????????????????????????????????????????????????? U.S.P??????????????? F.C.C ???????????? ??????????? Technical
Sodium Acetate(on the anhydrous basis)???????????????????? ??99.0%-101.0%???? 99.0%-101.0%????? 98.0%-101.0%
pH at 25℃ in 5% aqueous sol.????????????????????????????????????????????? 7.5-9.0???????????? ??7.5-9.0???????????????? ??? 7.5-9.0
Water(loss on drying, 120℃, 240min) ??????????????????????????????? 38-41%????????????? 36-41%?????????????????? 36-41%
Insoluble Matter%≤???????????????????????????????????????????????????????????????? ?0.05????????????????????????????????????????????????????? ?0.05
Heavy metals(as Pb)%≤??????????????????????????????????????????????????????? ?0.001?????????????? ??0.001???
Alikalinity(as Na2CO3)%≤?????????????????????????????????????????????????????????????????????????????? ?? 0.05
Arsenic(As)%≤????????????????????????????????????????????????????????????????????????????????????????????????????? 0.0003
ChIoride(CI) %≤????????????????????????????????????????????????????????????????????? ?0.035?????????????????????????????????????????????????????0.5
Sulfate(SO4) %≤??????????????????????????????????????????????????????????????????? ? 0.005????????????????????????????????????????????????? ??0.1
Iron(Fe)%≤?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? 0.001

Both grades conform to:
??????????????????????? U.S.Food Chemicals Codex5
??????????????????????? The criteria of purity of the EC(specified for E262).
??????????????????????? On request: USP 27.

Methods of analysis
Details of test methods can be supplied on request.

Packing
Sodium acetate trihydrate is supplied in woven paper bags.

Storage and handling
Sodium acetate should be stored and handled in its original packaging or in a suitable sealed container and kept in a clean and dry place. Storage conditions should preferably be a sheltered environment with limited temperature variations and low humidity levels. Direct contact of the package with water or any other liquid is likely to cause the product to cake. Pallets should not be stacked. Under normal conditions, the use of this product does not cause any undue health hazard. Precautions should be taken to prevent eye-and prolonged or repeated skin contact with the solid product or its solutions.

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First aid
Eye contact: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Skin contact: Wash with water. Remove contaminated clothing, which should be washed before re-use. Ingestion:
Wash out mouth with water. Obtain medical attention.

Fire hazard
Sodium acetate presents little fire hazard.

Application
Sodium acetate trihydrate is used in the pharmaceutical industry, as a buffer in the photographic industry and as a supplement for animal feeds to increase the milk fat production of dairy cattle(1).It is also used in the production of dye stuffs, as a polymerization catalyst, as a polymer stabilizer, as a flavouring agent, and in the manufacture of hydroxyl oximes, which are used as extractants in hydrometallurgy.
Detailed information on the use of sodium acetate for this application can be supplied on request.

PROPERTIES
Physical properties

Molecular mass??????????????????????????????????????????????? 136.08
Flash point??????????????????????????????????? ℃????????????? >250???
Solubility in water: at? 20℃?????????????????? g/100ml?????????? 119.0
Solubility in water: at? 100℃????????????????? g/100ml?????????? 170.2

Physiological properties
The solid or solutions may cause irritation to the eyes. Prolonged or repeated skin contact may
Cause slight irritation. Exposure to the dust at high concentrations or ingestion may cause irritation to the nose, throat, and upper respiratory tract.

LIABILITY
Information contained in this publication is accurate to the best of the knowledge of Wuxi Yangshan Biochemical Co., Ltd. The company does not accept any liability whatsoever, except as otherwise
Provided by law, in respect of the use of this information nor in respect of the use, application,
Adaptation or processing of any product(s) described herein.

CERTIFICATION
Wuxi Yangshan Biochemical Co., Ltd. has an ongoing quality system and is certified according to ISO 9001:2000
December 2006