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| CAS No.: | 9003-05-8 |
|---|---|
| Name: | Polyacrylamide |
| Molecular Structure: | |
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| Formula: | (C3H5NO)n |
| Molecular Weight: | 71.0779 |
| Synonyms: | 2-Propenamide, homopolymer;Acrylamide homopolymer;a series of polyacrylamide;Acrylamide, polymers;Polyacrylamide(PAM);polyacrylamide PAM manufacturer;Polyacrylamide; |
| EINECS: | 231-545-4 |
| Density: | 1.3 |
| Melting Point: | >300 °C |
| Flash Point: | >230 °F |
| Solubility: | soluble in water |
| Appearance: | white to faintly yellow granules |
| Hazard Symbols: |
 T
|
| Risk Codes: | R45; R21/22; R36/37/38; R42/43 |
| Safety: | S24/25; S45; S36/37/39; S23; S53 |
| PSA: | 43.09000 |
| LogP: | 0.35800 |
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Consensus Reports
PAA (CAS NO.9003-05-8) is reported in EPA TSCA Inventory.
Specification
The Poly(acrylamide), with the CAS number of 9003-05-8, can be called 2-Propenamide, homopolymer ; Acrylamide homopolymer ; Poly(2-propenamide) ; Polyacrylamide resin; Polyacrylamide .This chemical's molecular formula is (C3H5NO)x-. It is a white to faintly yellow granule. It can be synthesized as a simple linear-chain structure or cross-linked, typically using N,N'-methylenebisacrylamide.And it is stable,incompatible with strong oxidizing agents, aluminium, copper, iron, iron salts.
Physical properties about Poly(acrylamide)are:
(1)ACD/LogP: -0.562; (2)ACD/LogD (pH 5.5): -0.56; (3)ACD/LogD (pH 7.4): -0.56; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 11.79; (7)ACD/KOC (pH 7.4): 11.79; (8)#H bond acceptors: 2; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 1; (11)Index of Refraction: 1.433; (12)Molar Refractivity: 19.238 cm3; (13)Molar Volume: 73.947 cm3; (14)Polarizability: 7.626 10-24cm3; (15)Surface Tension: 31.0890007019043 dyne/cm; (16)Density: 0.961 g/cm3; (17)Flash Point: 78.951 °C; (18)Enthalpy of Vaporization: 46.838 kJ/mol; (19)Boiling Point: 231.711 °C at 760 mmHg; (20)Vapour Pressure: 0.0610000006854534 mmHg at 25°C
Uses of Poly(acrylamide):
One of the largest uses for Poly(acrylamide) is to flocculate or coagulate solids in a liquid. This process applies to wastewater treatment, and processes like paper making. Another common use is in subsurface applications such as Enhanced Oil Recovery. The ionic form of it has found an important role in the potable water treatment industry.Trivalent metal salts like ferric chloride and aluminium chloride are bridged by the long polymer chains of polyacrylamide.
When you are using Poly(acrylamide), please be cautious about it as the following:
1. Avoid contact with skin;
2. Avoid contact with eyes;
3. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible);
4. Wear suitable protective clothing, gloves and eye/face protection;
5. Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer);
6. Avoid exposure - obtain special instruction before use;
You can still convert the following datas into molecular structure:
(1)SMILES:C=CC(=O)N;
(2)Std. InChI:InChI=1S/C3H5NO/c1-2-3(4)5/h2H,1H2,(H2,4,5);
(3)Std. InChIKey:HRPVXLWXLXDGHG-UHFFFAOYSA-N;
The toxicity data of Poly(acrylamide) is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | oral | 12950mg/kg (12950mg/kg) | BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 29(12), Pg. 20, 1964. |
| rabbit | LD50 | oral | 11250mg/kg (11250mg/kg) | LUNGS, THORAX, OR RESPIRATION: DYSPNEA BEHAVIORAL: ATAXIA BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 29(12), Pg. 20, 1964. |
| rat | LD50 | intraperitoneal | 3600mg/kg (3600mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(4), Pg. 79, 1981. | |
| rat | LD50 | oral | > 1gm/kg (1000mg/kg) | Water Research. Vol. 24, Pg. 661, 1990. |
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