Ammonium sulfamate
Ammonium sulfamate
CAS: 7773-06-0
Molecular Formula: H6N2O3S
Ammonium sulfamate - Names and Identifiers
| Name | Ammonium sulfamate |
| Synonyms | sulfamate Ammonium sulfamate AMMONIUM SULFAMATE AMMONIUM SULPHAMATE AMMONIUM AMIDOSULFATE AMMONIUM AMIDOSULPHATE AMMONIUM AMIDOSULFONATE SULFAMIC ACID AMMONIUM SALT Sulfamic acid ammonium salt AMINOSULFONIC ACID AMMONIUM SALT AMIDOSULFONIC ACID AMMONIUM SALT |
| CAS | 7773-06-0 |
| EINECS | 231-871-7 |
| InChI | InChI=1/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)/p-1 |
| InChIKey | GEHMBYLTCISYNY-UHFFFAOYSA-N |
Ammonium sulfamate - Physico-chemical Properties
| Molecular Formula | H6N2O3S |
| Molar Mass | 114.12 |
| Density | 1.769 |
| Melting Point | 131-135 °C (lit.) |
| Boling Point | 160°C |
| Flash Point | 160°C |
| Water Solubility | 1950 g/L (20 ºC) |
| Solubility | H2O: 1M at20°C, clear, colorless |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | White crystal |
| Color | White |
| Odor | Slight amine odor |
| Exposure Limit | ACGIH: TWA 10 mg/m3OSHA: TWA 15 mg/m3; TWA 5 mg/m3NIOSH: IDLH 1500 mg/m3; TWA 10 mg/m3; TWA 5 mg/m3 |
| Merck | 14,554 |
| PH | 5.0-6.0 (50g/l, H2O, 20℃) |
| Storage Condition | no restrictions. |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. |
| Sensitive | Air & Moisture Sensitive |
| MDL | MFCD00011429 |
| Physical and Chemical Properties | Melting point 132-135°C water-soluble 1950g/L (20°C) |
| Use | Used as analytical reagents, herbicides and fabric waterproofing agents |
Ammonium sulfamate - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R50 - Very Toxic to aquatic organisms |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 1 |
| RTECS | WO6125000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 29222100 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: 3.0 g/kg (Ambrose) |
Ammonium sulfamate - Upstream Downstream Industry
| Raw Materials | Sulfamic acid Ammonium hydroxide Ammonium carbonate |
| Downstream Products | Guanidinium sulphamate |
Ammonium sulfamate - Nature
Open Data Verified Data
colorless and odorless crystals. The melting point was 130-132 °c. Decomposition at 160 °c. The solubility in water was 684g/L at 25 °c. Soluble in formamide and glycerol. The purity of industrial products shall not be less than 97%. A non-flammable gas is decomposed by heat, and thus is flame-retardant. Can be formed with the aldehyde addition products, easily oxidized by bromine and chlorine. The pH value of 5% aqueous solution is 5.2, which has a corrosive effect on mild steel.
Last Update：2024-01-02 23:10:35
Ammonium sulfamate - Preparation Method
Open Data Verified Data
- the purified sulfamic acid solution was dissolved in liquid ammonia under pressure, and then the excess liquid ammonia was distilled off under reduced pressure.
- The reaction was obtained by using disulfide oxide and liquid ammonia as raw materials under pressure.
- obtained by metathesis reaction with sulfamic acid using ammonium bicarbonate as a raw material.
Last Update：2022-01-01 11:06:47
Ammonium sulfamate - Use
Open Data Verified Data
The non-selective herbicide has special application value for controlling most woody plants. Control of annual weeds, most shrubs and woody plants. Perennial weeds were slightly resistant. When used, it is generally sprayed with aqueous solution, and can be sprayed on the stump with woody plants. The dosage is 25.2~50kg/hm2 for annual plants and 50~125kg/hm2 for perennial plants. In addition, it can also be used as a flame retardant for wood, paper, fabric and for printing and dyeing, tobacco, electroplating and so on.
Last Update：2022-01-01 09:07:08
Ammonium sulfamate - Safety
Open Data Verified Data
rat oral LDso:3.9g/kg; Quail oral LDso:3g/kg. Intravenous injection of lOOmg/kg had no effect on circulation and respiration in rats. Acute percutaneous LDso is negligible. Repeated application of 50% water soluble on The Shaved skin of rats was not irritating or drug-resistant. In the 105-day feeding trial, the rats received lOg/kg feed with no deleterious effects.
Last Update：2022-01-01 09:07:08
Ammonium sulfamate - Reference Information
| pH range of acid-base indicator discoloration | 4.5 - 6.0 |
| LogP | -4.34 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Property | White loose crystal, with solubility of 185.6 in water under standard condition; Melting point of 131 ℃, boiling point of 160 deg C (decomposition), can absorb moisture in the air; Insoluble in methanol and ethanol. Hygroscopic. Thermal decomposition, release a large amount of inert gas. |
| preparation | (1) under pressure, the refined sulfamic acid is dissolved in liquid ammonia, and then reduced in pressure, (2) using sulfur trioxide and liquid ammonia as raw materials and reacting under pressure; (3) using ammonium bicarbonate as raw material and metathesis reaction with sulfamic acid. |
| uses | used as analytical reagents, herbicides and fabric waterproofing agents widely used in pesticides, printing and dyeing, tobacco, building materials, |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 2000 mg/kg; Oral-mouse LD50: 3100 mg/kg |
| explosive hazard characteristics | explosive under heat; Spontaneous explosion in hot acid solution |
| flammability hazard characteristics | toxic nitrogen oxide and sulfur oxide gases from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| extinguishing agent | dry powder, foam, sand |
| Occupational Standard | TWA 10 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentrations | 1,500 mg/m3 |
Last Update：2024-04-09 02:00:11
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Raw Materials for Ammonium sulfamate
Downstream Products for Ammonium sulfamate