Sunray International

Gondal, Rajkot, Gujarat

sodium carboxymethyl starch (cms or scms)is a starch ether derivative derived from starch. It is soluble in water at room temperature and forms a transparent to light milky and viscous solution.

cmsis an important modified starch with unique properties due to the presence of negatively charged functional group(ch2coo-). The introduction of carboxymethyl groups interrupts the ordered structure of native starch and intervenes with the re-association of gelatinized starch. This modification yields starch with decreased gelatinization temperature, increased solubility and improved storage stability.

cms is chemically processed carbohydrate typically derived from native starch viz. Maize, potato, tapioca & rice.

these sodium carboxy methyl starch and solution are alkaline in nature and have the capacity to replace sodium car-boxy methyl cellulose in fields like textile sizing and printing, corrugated paper, paper sizing, oil well drilling, water based distemper, oil bound distemper, electrodes, ceramics, pesticides, foundry, adhesives and others.

the chemical name of scms is sodium salt of carboxymethyl ether of starch

cas number: 9063-38-1.

properties1) white or light yellow powder.2) insoluble in ethanol, ether, acetone and other organic solvents.3) easily soluble in cold water, immediate intake water and swell in 15 minutes.4) absorption of water is 30 times comparing to original volume.5) in the presence of acid and metal salts, will produce a white turbidity or precipitation.6) biodegradable and non-toxic.

sodium monochloro acetate (smca) (c₂h₂clnao₂) is the sodium salt of monochloroacetic acid (mca).

sodium monochloro acetate (smca) is obtaining from neutralization of monochloroacetic acid (mca) with sodium carbonate (soda ash).

another method of manufacturing sodium monochloro acetate (smca) is spraying molten monochloroacetic acid (mca) together with 50 % caustic soda solution into a spray dryer.

synonyms

sodium chloroacetate, chloroacetic acid sodium salt, monochloroacetic acid sodium salt, monochloroethanoic acid sodium salt, chloroethanoic acid sodium salt, smca, sma, monoxone.

iupac name: sodium 2-chloroacetate.

cas registry number: 3926-62-3

ec number: 223-498-3

un number: 2659

chemical formula: c₂h₂clnao₂

applications

sodium monochloro acetate (smca) is use in the production of a wide variety of useful compounds such as dyes, agrochemicals and thickening agents. Most reactions take advantage of the high reactivity of the ccl bond.