Basic information
- Standard SMILES
CCCO[Si](OCCC)(OCCC)OCCC- InChIKey
ZQZCOBSUOFHDEE-UHFFFAOYSA-N- Molecular formula
- C12H28O4Si
- Average molar mass
- 264.43 g/mol
- Monoisotopic mass
- 264.17568591
Names & identifiers
- Preferred name
- Tetrapropoxysilane
- IUPAC
- tetrapropyl silicate
- English name
- Tetrapropoxysilane
- Molecular formula
- C12H28O4Si
- Molecular weight
- 264.43
Names & synonyms
Tetrapropyl orthosilicateTetrapropoxysilaneSilicic acid (H4SiO4), tetrapropyl estertetra-n-propyl silicateDTXSID9042382Propyl silicatetetra-n-Propyl orthosilicateTetrapropyloxysilaneUNII-4PE821G3GH4PE821G3GHSilicon orthopropoxideSilicon tetrapropoxide
Show more names
CT2090Dynasil Pn-Propyl silicateTETRAPROPOXYLSILANETetrapropylsilicatePropyl orthosilicateTETRA-N-PROPOXYSILANE
n-propyl orthosilicateSilane, tetrapropoxy-tetra-n-propoxy-silaneEINECS 211-659-0Propyl silicate ((PrO)4Si)DTXCID7022382ZQZCOBSUOFHDEE-UHFFFAOYSA-PROPYL ORTHOSILICATE [II]
Database identifiers
- CAS
682-01-9- PubChem CID
- 69627
- DTXSID
DTXSID9042382- ChEMBL
CHEMBL3181871- UNII
- 4PE821G3GH
- EC Number
- 211-659-0
- Nikkaji
- J113.278D
Properties
Computed structural properties
- Topological polar surface area
- 36.9 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 12
- Heavy atoms
- 17
- Formal charge
- 0
- Complexity
- 129
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
SpringerMaterials PropertiesBoiling point
Density0.913 @25 °C
Boiling Point94 °C @760 [mm Hg]
Physical Description
Liquid; Other Solid
Colorless liquid; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- -80 °C · <-80°C
- Boiling point
- 94 °C5 · 94 °C5 mm Hg(lit.)
- Density
- 0.916 g/mL · 0.916 g/mL at 25 °C(lit.)
- vapor density
- 1 · >1 (vs air)
- vapor pressure
- 0.26 Pa · 0.26Pa at 25℃
- refractive index
- 20 · n20/D 1.4(lit.)
- Flash point
- 203 °F · 203 °F
- storage temp.
- Inert atmosphere,Room Temperature
- form
- liquid
- Specific Gravity
- 0.916 · 0.916
- color
- Colorless to Almost colorless
- Viscosity
- 1.51 mm2/s · 1.51mm2/s
- Water Solubility
- 78 mg/L · 78mg/L at 20℃
- Sensitive
- Moisture Sensitive
- Hydrolytic Sensitivity
- 7 · 7: reacts slowly with moisture/water
- BRN
- 1706115 · 1706115
- InChI
- 1S/C12H28O4Si/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h5-12H2,1-4H3
- InChIKey
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N
- SMILES
- CCCO[Si](OCCC)(OCCC)OCCC
- LogP
- 3.4 at · 3.4 at 20℃
- CAS DataBase Reference
- 682 · 682-01-9(CAS DataBase Reference)
- FDA UNII
- 4 PE821G3GH · 4PE821G3GH
- NIST Chemistry Reference
- Tetrapropyl silicate(682-01-9)
- EPA Substance Registry System
- Silicic acid (H4SiO4), tetrapropyl ester (682-01-9)
- UNSPSC Code
- 12352103 · 12352103
- NACRES
- 23 · NA.23
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
- target organs
- Respiratory system
- PPE
- Eyeshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 26 · 26-36-37/39
- RIDADR
- 1993 · 1993
- WGK Germany
- 3 · 3
- F
- 10 · 10-21
- TSCA
- TSCA listed
- HazardClass
- 8 · 8
- PackingGroup
- III
- HS Code
- 29209090 · 29209090
- Storage Class
- 10 · 10 - Combustible liquids
- Hazard Classifications
- 2 Skin · Eye Irrit. 2Skin Irrit. 2STOT SE 3
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 7.9% (20 of 254) of reports.
Warning
H315 (48.8%): Causes skin irritation [Warning Skin corrosion/irritation]
P260, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 254 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Silicic acid (H4SiO4), tetrapropyl ester
Silicic acid (H4SiO4), tetrapropyl ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicic acid (H4SiO4), tetrapropyl ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 12-09-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14206
Tetrapropyl orthosilicate: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards SummaryA skin and strong eye irritant; [Alfa Aesar MSDS] See Ethyl silicate and Tetrabutyl orthosilicate.
Hazard Classes and CategoriesSkin Irrit. 2 (48.8%)
Safety & protection
Protective Action Criteria (PAC)
12 [mg/m3]
130 [mg/m3]
790 [mg/m3]
Safety data
- F
- 10-21
- PPE
- Eyeshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- 1993
- hs_code
- 29209090
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36-37/39
- hazard_class
- 8
- Storage Class
- 10 - Combustible liquids
- packing_group
- III
- target organs
- Respiratory system
- Hazard statements
- H315-H319-H335
- REACH Registrations
- Active
- Hazard Classifications
- Eye Irrit. 2Skin Irrit. 2STOT SE 3
- Precautionary statements
- P261-P264-P271-P280-P302+P352-P305+P351+P338
Chemistry & industry
Uses & manufacturing
UsesPermitted for use as an inert ingredient in non-food pesticide products; [EPA]
U.S. Production2023: <50,000 lb
Industry UsesAdhesion/cohesion promoter
General Manufacturing Information
Paint and Coating Manufacturing
Silicic acid (H4SiO4), tetrapropyl ester: ACTIVE
Applications
UsesTetrapropoxysilane is used for the treatment of paints, coatings, silicone rubber and inorganic materials.
Upstream & downstream products
Upstream raw materials
Suppliers50 total
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
郑州阿尔法化工有限公司+86-18530059196 · [email protected]
衢州润东化工有限公司0570-8789886 18892685668 · [email protected]
湖北永阔科技有限公司027-59223108 15972152991 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
湖北宥澄新材料科技有限公司17764017698 13163370568 · [email protected]
上海比阳实业有限公司+86-21-52699951; +8613917686115 · [email protected]
武汉欣扬瑞和化学科技有限公司153-07155313 15307155313 · [email protected]
温州共赢化学有限公司+86-0086-577-64498589 +86-15355981851 · [email protected]
河北创海生物科技有限公司+86-86-13131129325 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
科瑞迪化学400-821-5857 021-64326257 · [email protected]
Syntechem Co.,Ltd[email protected]
上海迈瑞尔生化科技有限公司4006356688 18621169109 · [email protected]
阿法埃莎（中国）化学有限公司400-6106006 · [email protected]
安耐吉化学&3A（安徽泽升科技股份有限公司）400-0056266 · [email protected]
上海瀚鸿科技股份有限公司021-54306202 13764082696 · [email protected]
湖北广奥生物科技有限公司027-02702759223056 18162699093 · [email protected]
上海比阳实业有限公司+86-15021878111 · [email protected]
上海竺钥化工有限公司021-33559231 18964673308 · [email protected]
山东西亚化学有限公司13355009207 13355009207 · [email protected]
玛雅试剂+86 (573) 82222445 (0)18006601000 452520369 · [email protected]
四川库利南科技有限公司400-1166-196 18981987031 · [email protected]
天津希恩思生化科技有限公司400 638 7771 · [email protected]
Xiamen AmoyChem Co., Ltd+86-86-5926051114 · [email protected]
上海祈铭新材料有限公司021-36010885 13661599081;13701898138 · [email protected]
艾科试剂4008-755-333 18080918076 · [email protected]
上海思域化工科技有限公司86-21-34053660 · [email protected]
QINGDAO KAIENSI INTERNATIONAL TRADE CO.,LTD.+86-0532-8699-9256 +86-18518128472 · [email protected]
江苏艾康生物医药研发有限公司025-66113011 13913916777 · [email protected]
TOKYO CHEMICAL INDUSTRY CO., LTD.03-36680489 · [email protected]
武汉普洛夫生物科技有限公司17612776928 · [email protected]
苏州亚科科技股份有限公司0512-87182055 13451648594 · [email protected]
上海将来实业股份有限公司400-0066400 13621662912 · [email protected]
HBCChem, Inc.+1-510-219-6317 · [email protected]
上海探圭新材料科技有限公司18516111942 · [email protected]
上海石洋化工有限公司021-56795766 · [email protected]
成都零六生物科技有限公司400-1166-196 13458535857 · [email protected]
上海麦克林生化科技股份有限公司15221275939 15221275939 · [email protected]
艾孚特（天津）新材料有限公司18756952323 18756942323 · [email protected]
上海兴鲁化工科技有限公司02120970332 · [email protected]
湖北巨胜科技有限公司027-59599241 18871490274 · [email protected]
池州凯隆进出口贸易有限公司[email protected]
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司021-61415566 800-8193336 · [email protected]
桦特昇生物科技（武汉）有限公司027-59207879 1972026995 18140587686 · [email protected]
九鼎化学（上海）科技有限公司4009209199 · [email protected]
厦门志信化学有限公司+86-5922680277 +86-13806087780 · [email protected]
北京华威锐科化工科技有限公司89508211 18501085097 · [email protected]
上海源叶生物科技有限公司13636370518 · [email protected]
武汉市承天精细化工有限公司18164098996 · [email protected]
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