Sodium carboxymethyl cellulose CAS#9004-32-4

CAS Number: 9004-32-4
Chemical Formula: C6H7O2(OH)2CH2COONa
Synonyms:

Aquacide I, Calbiochem
Aquacide II, Calbiochem
SODIUM CARBOXY METHYL CELLULOSE (CMC)

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Sodium carboxymethyl cellulose CAS#9004-32-4

Sodium carboxymethyl cellulose(9004-32-4) is a water-soluble polymer. As a solution in water, it has thixotropic properties. It is useful in helping to hold the components of pyrotechnic compositions in aqucous suspension (e.g., in the making of black match). It is also an especially effective binder that can be used in small amounts in compositions, where the binder can intcrfere with the intended effect (e.g., in strobe compositions). However, its sodium content obviously precludes its use in most color compositions. Sodium carboxymethyl-cellulose is manufactured from cellulose by various proccsses that replacc some of the hy drogen atoms in the hydroxyl[OH] groups of the cellulose molecule with acidic carboxymethyl [-CH2CO.OH] groups，which are neutralized to form the corresponding sodium salt. Sodium carboxymethyl cellulose is white when pure; industrial grade material may be grayish-white or cream granules or powder.

Sodium carboxymethyl cellulose Chemical Properties

Melting point	274 °C (dec.)
density	1,6 g/cm3
refractive index	1.515
FEMA	2239 \| CARBOXYMETHYLCELLULOSE
storage temp.	room temp
solubility	H2O: 20 mg/mL, soluble
pka	4.30(at 25℃)
form	low viscosity
color	White to light yellow
Odor	Odorless
PH	pH (10g/l, 25℃) 6.0～8.0
PH Range	6.5 - 8.5
biological source	wood (pulp)
Water Solubility	soluble
Merck	14,1829
Stability:	Stable. Incompatible with strong oxidizing agents.
Cosmetics Ingredients Functions	EMULSION STABILISING FRAGRANCE VISCOSITY CONTROLLING FILM FORMING BINDING
Cosmetic Ingredient Review (CIR)	Sodium carboxymethyl cellulose (9004-32-4)
InChI	1S/C6H12O6.C2H4O2.Na/c7-1-3(9)5(11)6(12)4(10)2-8;1-2(3)4;/h1,3-6,8-12H,2H2;1H3,(H,3,4);
InChIKey	DPXJVFZANSGRMM-UHFFFAOYSA-N
SMILES	[Na].OC(C(O)C(O)C=O)C(O)CO.OC(=O)C
EPA Substance Registry System	Sodium carboxymethyl cellulose (9004-32-4)

Safety Information

Risk Statements	40
Safety Statements	24/25
WGK Germany	1
RTECS	FJ5950000
F	3
Autoignition Temperature	698 °F
TSCA	TSCA listed
HS Code	39123100
Storage Class	11 - Combustible Solids
Toxicity	LD50 oral in rabbit: > 27gm/kg

Product Application Of Sodium carboxymethyl cellulose CAS#9004-32-4

Sodium carboxymethyl cellulose (NaCMC) is the sodium salt of carboxymethyl cellulose, an anionic derivative.It is widely used in oral and topical pharmaceutical formulations, primarily for its viscosity-increasing properties. Viscous aqueous solutions are used to suspend powders intended for either topical application or oral and parenteral administration. Carboxymethylcellulose sodium may also be used as a tablet binder and disintegrant, and to stabilize emulsions.
Higher concentrations, usually 3–6%, of the medium-viscosity grade are used to produce gels that can be used as the base for applications and pastes; glycols are often included in such gels to prevent them drying out. Carboxymethylcellulose sodium is also used in self-adhesive ostomy, wound care, and dermatological patches as a muco-adhesive and to absorb wound exudate or transepidermal water and sweat. This muco-adhesive property is used in products designed to prevent post-surgical tissue adhesions; and to localize and modify the release kinetics of active ingredients applied to mucous membranes; and for bone repair. Encapsulation with carboxymethylcellulose sodium can affect drug protection and delivery. There have also been reports of its use as a cyto-protective agent.
Carboxymethylcellulose sodium is also used in cosmetics, toiletries, surgical prosthetics, and incontinence, personal hygiene, and food products.

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