Name:
Sodium phosphate dibasic dihydrate HPLC grade 99+%
Synonym:
Disodium hydrogen phosphate dihydrate; Sodium phosphate dibasic dihydrate
CAS:
7558-79-4
Section 1 - Chemical Product
MSDS Name:Sodium phosphate dibasic dihydrate HPLC grade 99+%
Synonym:Disodium hydrogen phosphate dihydrate; Sodium phosphate dibasic dihydrate
Synonym:Disodium hydrogen phosphate dihydrate; Sodium phosphate dibasic dihydrate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7558-79-4 | Sodium phosphate dibasic dihydrate | > 99 | unlisted |
| Hazard Symbols: None Listed. Risk Phrases: None Listed. |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.
Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Use water spray, dry chemical, carbon dioxide, or chemical foam.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Use water spray, dry chemical, carbon dioxide, or chemical foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.
Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7558-79-4: CAS# 10028-24-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7558-79-4: CAS# 10028-24-7: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Color: Not available.
Odor: Not available.
pH: 9.1 - 9.4 (50 g/l aq
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 243 - 245 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: 93 g/l water (20C)
Specific Gravity/Density:
Molecular Formula: HNa2O4P.2H2O
Molecular Weight: 196.00
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, moisture.
Incompatibilities with Other Materials:
Strong acids.
Hazardous Decomposition Products:
Oxides of phosphorus, sodium oxide.
Hazardous Polymerization: Has not been reported
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, moisture.
Incompatibilities with Other Materials:
Strong acids.
Hazardous Decomposition Products:
Oxides of phosphorus, sodium oxide.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7558-79-4: WC4500000 CAS# 10028-24-7 unlisted.
LD50/LC50:
CAS# 7558-79-4: Draize test, rabbit, eye: 500 mg/24H Mild; Draize test, rabbit, skin: 500 mg/24H Mild; Oral, rat: LD50 = 17 gm/kg.
CAS# 10028-24-7.
Carcinogenicity:
Sodium phosphate dibasic, anhydrous - Not listed by ACGIH, IARC, or NTP.
Sodium phosphate dibasic dihydrate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7558-79-4: WC4500000 CAS# 10028-24-7 unlisted.
LD50/LC50:
CAS# 7558-79-4: Draize test, rabbit, eye: 500 mg/24H Mild; Draize test, rabbit, skin: 500 mg/24H Mild; Oral, rat: LD50 = 17 gm/kg.
CAS# 10028-24-7.
Carcinogenicity:
Sodium phosphate dibasic, anhydrous - Not listed by ACGIH, IARC, or NTP.
Sodium phosphate dibasic dihydrate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
No information available.
IMO
No information available.
RID/ADR
No information available.
USA RQ: CAS# 7558-79-4: 5000 lb final RQ; 2270 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 7558-79-4: 1
CAS# 10028-24-7: 1
Canada
CAS# 7558-79-4 is listed on Canadas DSL List.
CAS# 7558-79-4 is not listed on Canadas Ingredient Disclosure List.
CAS# 10028-24-7 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7558-79-4 is listed on the TSCA inventory.
CAS# 10028-24-7 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).
