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Sodium polyacrylate

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Name

Sodium polyacrylate

EINECS 999-999-2
CAS No. 9003-04-7 Density 1.32 g/mL at 25 °C
PSA 40.13000 LogP -1.07770
Solubility Melting Point 12.5oC
Formula (C3H3NaO2)n Boiling Point 141oC
Molecular Weight 94.04450 Flash Point
Transport Information Appearance faintly grey crystalline solid
Safety 26-36 Risk Codes 36/37/38-36
Molecular Structure Molecular Structure of 9003-04-7 (Sodium polyacrylate) Hazard Symbols IrritantXi
Synonyms

Hiviswako 105;Aron T 40;RH-D;2-Propenoic acid, homopolymer;Good-rite K 7058N;Aronvis SS;Carpolene;CWM 1105;Aron A 9;Pemulen TR-2;Indunal NKS;Neocryl A-1038;Haloflex 202;See also 2-Propenoic acid,polymers,homopolymer,sodium salt;Acrysol AC 5;Polymer of acrylic acid, cross-linked with allyl ethers of sucrose or pentaerythritol;Acrysol LMW 45NX;Carbopol 960;Noramer 9210;Versicol S 11;Aronvis AH 105;Propenoic acid polymer;Texcryl;Aron A 20PG;Polysel S;Geropon HB;Aronvis;Aqualic OP 203;PAA-25;Bevaloid 6574DD;Polymaster D 45;Acrylic acid, polymers;Polymer of 2-propenoic acid, cross-linked with allyl ethers of pentaerythritol;Sokalan PA 25;Aqualic DL 464;Cabloc 80HS;Dow Latex 354;Metolat FC 515;Polyacrylate elastomers;Aronvis GL;Plex 367F;Racryl;Tamol 983;Aron A 20P;Sumikagel NP 1010;Polyacryl 104S;Polyacryl 134S;POLYCO;Sodium salt of low-molecular polyacrylate;Sodium polyacrylate salt in water;Acrysol WS-24;Polymer of acrylic acid, cross-linked with allyl ethers of pentaerythritol;Carbopol 934;Polyacrylic Acid Sodium;Dispex T 40;2-Propenoic acid,polymers,homopolymer,sodium salt;R968;Atactic poly(acrylic acid);Versicol E 7;Himoloc DR 1500;KrigingKrilium;Arasorb 704;Nalco JM 006;Tychem 9501;Marpozol RA 40;WS 24;Aqualic DL 40S;Jurymer AC 10NP;Modicol VD;Toxanon GR 31A;Carbomer 910 [USAN];Polymer, carboxy vinyl;Tecpol;Aqualic DL 522;Carbopol 980;Alcosperse 107D;HP 1 (dispersant);Rokrysol WDP;Lytron 889;Viscomate P 460;Coatex P 50;WS 801;D-Floc 70;Polymer of 2-propenoic acid, cross-linked with allyl ethers of sucrose;Sokalan PA 50;Versicol K 11;Hydropalat 1706;Sokalan PA 20;Carbomer 910;Polyresin 5544;Dispex N 40;PAAS;Acrylic acid, polymer;Goodrite K 7200;Rheogic 250H;Colloid 208;Panakayaku CH;Good-rite K727;Toxanon GR 30;Cyguard 266;XPA;Antiprex A;Carbopol 941;Good-rite K-700;Synthemul 90-588;Sokalan PAS;Acusol 445N;Revacryl A 191;Dispex C40;Alcosperse 107;Good-rite K 732;P-11H;P 11H;Acrylic resin;Versicol S 25;Carbopol 934p;Daxad 37LN10;Primal ASE 60;Aron A 7100;Aron A 20PX;Versicol E15;Zonen B;Carboset Resin No. 515;Carbopol 1342;POLY(ACRYLIC ACID), SODIUM SALT;SAP( Super Absorbent Polymer);Sodinm Polpacrylate;Poiz 530;HOE-S 2793;Acrysol WS 24;Arolon;Degapas 4104N;LSP 1 (acrylic polymer);Acrylic acid polymer;Polyacrylic Acid Sodium (PAAS);PAAS (Polyacrylic Acid Sodium);PAAS --Polyacrylic Acid Sodium;POLY(ACRYLIC ACID, SODIUM SALT) AR;Good-rite K 739;Alcosperse 603N;RHOTEX GS;PAAS (Polyacrylic Acid Sodium) (PAA,PAPE,PAAS,PAPEMP);Polyacryl 184S;Polymerized acrylic acid;Pemulen TR-1;Acrysol HV 1;Polyacryl 124S;Acusol 445ND;Antiprex 461;Norasol 410N;Nopcosperse 44;TB 1131;Acrysol LMW 20N;SXM 75;Tamol 960;Busperse 49;Poiz 535;Aron A 20L;Colloid 211;Rokrysol WDP-A;Aron A 20ML;Solacrol T;G-Cure;Sokalan PA 30C1;Polystabil S 312;Carbomer 941 [USAN];Carboxy vinyl polymer;PA 11M;Paragum 165;Aron A 20LL;Sokalan PA 110;Panakayaku F;Aqualic CS 7;Polytex 973;Carbomer 940 [USAN];Arasorb S 100ND;835H;Acrylic polymer resins;Sanwet 3746-1;Paramel PA;Nalfloc 636;Polyacrylate;Carbopol 910;Aron 200U;Aqualic FH-S;Viscon 103;Alcosperse 602N;Dispex G 40;Jurimer AC 10H;OLD 01;Rohagit SD 15;Aqualic IH;Aron;Calgon CL 4000;Carbopol 981;Polymer of 2-propenoic acid, cross-linked with allyl ethers of sucrose or pentaerythritol;Sumikagel NP 1020;Sokrat 32S;Poly(acrylic acid);Carbopol 961;Panakayaku B;Sokalan PA 70PN;Aquatreat AR 700;Versicol E 9;Acrysol LMW 45N;Orotan 850;Alcosperse 149;Water-Lock J 550;Polysalz F;Narlex LD 34;Bonflock AA 400AH;Carbomer 934p [USAN];Polyacryl 114S;Aron A;Aqualic IH-L;Acrysol GS;Aronvis S;Aronvis M;SN Thickener A 818;Solidokoll N;Polysalz S;Plex 5367F;Polyacryl 208;Aronvis SSA;Darvan 7S;Luquasorb HC 9797F;Jaypol M 40;Sokarol T;Sokalan PA 40;Narlex PPE 1177;Mayo 148D;Acrylic polymer;Degapas 104;Carbopol 971P;Acrysol lmw-20X;Carbomer 934 [USAN];Jurymer AC 10N;Aron L 20;Acusol 410N;

 

Sodium polyacrylate Consensus Reports

Reported in EPA TSCA Inventory.

Sodium polyacrylate Specification

Sodium polyacrylate , its cas register number is 9003-04-7. It also can be called Polyacrylic acid sodium salt ; Poly(sodium acrylate) ; Propenoic acid homopolymer sodium salt ; PAAS .It is a faintly grey crystalline solid. It is a sodium salt of polyacrylic acid with the chemical formula [-CH2-CH(COONa)-]n and broad application in consumer products.  It has the ability to absorb as much as 200 to 300 times its mass in water. Sodium polyacrylate is anionic polyelectrolytes with negatively charged carboxylic groups in the main chain.

Physical properties about Sodium polyacrylate are: (1)ACD/LogP: 0.279; (2)ACD/LogD (pH 5.5): -0.99; (3)ACD/LogD (pH 7.4): -2.77; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 1.80; (7)ACD/KOC (pH 7.4): 1.00; (8)#H bond acceptors: 2; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 1; (11)Flash Point: 61.6 °C; (12)Enthalpy of Vaporization: 41.72 kJ/mol; (13)Boiling Point: 141 °C at 760 mmHg; (14)Vapour Pressure: 3.42 mmHg at 25°C

Preparation of Sodium polyacrylate: Its made by polymerising acrylic acid (usually as an emulsion polymer in water with emulsifiers and free radical cataylst such as sodium persulfate of hydrogen peroxide) and neutralising with sodium hydroxide.

Uses of Sodium polyacrylate: 
1. Sodium polyacrylate is a chemical polymer that is widely used in a variety of consumer products for its ability to absorb several hundred times its mass in water. Sodium polyacrylate is made up of multiple chains of acrylate compounds that possess a positive anionic charge, which attracts water-based molecules to combine with it, making sodium polyacrylate a suber-absorbent compound.

2. Sodium polyacrylate is commonly used as a sequestering agent, or chelating agent, in many detergents. It has the ability to bind hard-water elements, such as magnesium, calcium, iron and zinc, to make the detergents work more effectively. Chelating agents neutralize the presence of heavy metals that may be found in water, dirt and other substances that can be found in your laundry, making the detergent more effective in cleaning and neutralizing odors in your clothes.

When you are using this chemical, please be cautious about it as the following:
1. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
2. Take off immediately all contaminated clothing;
3. After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer);
4. Do not empty into drains;
5. Never add water to this product;
6. Take precautionary measures against static discharges;
7. This material and its container must be disposed of in a safe way;
8. Wear suitable protective clothing;

You can still convert the following datas into molecular structure:
(1)SmilesC(C=C)(=O)[O-].[Na+];

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral > 40gm/kg (40000mg/kg)   Proceedings of the Scientific Section of the Toilet Goods Association. Vol. 20, Pg. 16, 1953.

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